Commission Delegated Regulation (EU) No 1322/2014 of 19 September 2014 supplementing and amending Regulation (EU) No 167/2013 of the European Parliament and of the Council with regard to vehicle construction and general requirements for the approval of agricultural and forestry vehicles (Text with EEA relevance) (c. 1322)

Commission Delegated Regulation (EU) No 1322/2014

of 19 September 2014

supplementing and amending Regulation (EU) No 167/2013 of the European Parliament and of the Council with regard to vehicle construction and general requirements for the approval of agricultural and forestry vehicles

(Text with EEA relevance)

THE EUROPEAN COMMISSION,

Having regard to the Treaty on the Functioning of the European Union,

Having regard to Regulation (EU) No 167/2013 of the European Parliament and of the Council of 5 February 2013 on the approval and market surveillance of agricultural and forestry vehicles(1), and in particular Articles 18(4), 20(8), 27(6), 28(6), 49(3), 53(12) and 60(1) and Articles 61 and 70 thereto,

Whereas:

(1) This Regulation aims to set out the technical requirements and test methods required for the construction of agricultural and forestry vehicles in order to minimise the risk of injury to persons working on or with the vehicle.

(2) By Council Decision 97/836/EC(2), the Union has acceded to the Agreement of the United Nations Economic Commission for Europe (UNECE) concerning the adoption of uniform technical prescriptions for wheeled vehicles, equipment and parts which can be fitted to and/or be used on wheeled vehicles and the conditions for reciprocal recognition of approvals granted on the basis of these prescriptions (Revised 1958 Agreement). In its Communication CARS 2020: Action Plan for a competitive and sustainable automotive industry in Europe, the Commission highlighted that the acceptance of international regulations under the 1958 UNECE Agreement is the best way to remove non-tariff barriers to trade.

(3) The possibility to apply UNECE regulations for the purposes of EU vehicle type-approval is provided for in Regulation (EU) No 167/2013. UNECE regulations being part of the requirements for the EU type-approval of a vehicle help avoid duplication not only of technical requirements but also of certification and administrative procedures. In addition, type-approval that is directly based on internationally agreed standards should improve market access in third countries, in particular in those which are contracting parties to the Revised 1958 Agreement, thus enhancing the Union industry’s competitiveness.

(4) In the interest of clarity, predictability, rationality and simplification and in order to reduce the burden on vehicle manufacturers, technical services and type-approval authorities, Regulation (EU) No 167/2013 provides for the recognition of test reports drawn up under the Codes established by the Organisation for Economic Cooperation and Development (OECD) for the purposes of EU type-approval as an alternative to the test reports drawn up under that Regulation or the delegated acts adopted pursuant to that Regulation. It is therefore appropriate to establish a list of OECD Codes the subject-matter of which falls within the scope of this Regulation and which can be the bases for test reports recognised for the purposes of EU type-approval.

(5) With the aim to adapt the provisions on the construction of agricultural and forestry vehicles to technical progress, latest versions of CEN/Cenelec or ISO standards which are accessible by the public should be made applicable as regards certain requirements.

(6) In view of reducing manufacturers’ costs by no longer obliging them to build prototypes for the purposes of obtaining EU type-approval, this Regulation sets out detailed conditions with respect to virtual testing and self-testing carried out by the manufacturers. Manufacturers not wishing to take advantage of virtual testing methods should be allowed to continue to use the existing physical test methods.

(7) The virtual testing method should guarantee the same level of confidence in the results as the physical test. Therefore, it is appropriate to lay down relevant conditions to ensure that the manufacturer or the technical service can properly validate the mathematical models used.

(8) Checks on the conformity of vehicles, components or separate technical units throughout the production process are an essential part of the EU type-approval process. The conformity of production procedures for agricultural and forestry vehicles should be further improved and aligned with similar procedures applicable to passenger cars.

(9) Virtual methods should not be permissible for the purposes of conformity of production testing, even if they have been used for type-approval purposes, because at this stage, a physical test of the existing vehicle does not imply unnecessary burden for the manufacturer.

(10) The provisions of Regulation (EU) No 167/2013 on the access to repair and maintenance information are largely based on Regulation (EC) No 595/2009(3) of the European Parliament and of the Council. In order to adopt the harmonized approach for access to repair and maintenance information provided for in this Regulation, it is appropriate to carry over to this Regulation the provisions on access to repair and maintenance information set out in the Commission Regulation (EC) No 582/2011(4) and adapt it to the specificities of the agricultural and forestry vehicles sector.

(11) In particular, it is appropriate to adopt specific requirements and procedures for access to vehicle repair and maintenance information in the case of small volume production in order to avoid unproportionate burden. It is also appropriate to lay down specific procedures for access to vehicle repair and maintenance information in the case of multi-stage type-approval to take account of the fact that there is more than one manufacturer involved.

(12) With regard to vehicle types of categories R and S, the figures introduced to categorise small volume manufacturers should take account of the fact that Regulation (EU) No 167/2013 does not provide for the national type-approval of small series for such vehicle types and such vehicle categories cannot be fully exempted from the obligation to provide vehicle repair and maintenance information under that Regulation. Should Annex II to that Regulation be modified in order to expand the possibility to grant national type approval of small series to categories R and S, the Commission should consider reducing these figures.

(13) Harmonised provisions on the access to vehicle on-board diagnostic (OBD) and vehicle repair and maintenance information are necessary to improve the effective competition within and the functioning of the internal market, particularly as regards the free movement of goods, freedom of establishment and freedom to provide services for independent vehicle repair and maintenance operators. A great proportion of such information relates to the OBD system and its interaction with other vehicle systems. It is appropriate to lay down the technical specifications that manufacturers’ websites should follow, along with targeted measures to ensure reasonable access for small and medium-sized enterprises.

(14) Common standards for the reprogramming of the electronic control units agreed with the stakeholders concerned can facilitate the exchange of information between manufacturers and service providers. It is therefore appropriate that manufacturers use those common standards. Nevertheless, to reduce the burden on vehicle manufacturers, an appropriate lead time for their implementation should be provided for in this Regulation.

(15) In order to keep aligned the technical requirements carried over to this Commission Delegated Regulation with the requirements of the separate directives repealed by Regulation (EU) 167/2013 and with the requirements of the OECD standard Codes, the seat reference point (S) and the seat index point (SIP) should be maintained unmodified.

(16) To be able to EU type-approve the same types of tractors according to each of the Annexes listed in Annex II as those approved under the corresponding OECD Codes and to be effectively able to recognise the OECD test reports for the purposes of EU type-approval, the technical field of application of the EU requirements should be aligned with the field of application of the OECD standard Codes.

(17) To make clear that certain requirements of Union legislation are fully aligned with the requirements set out in the OECD standard Codes, the text of the requirements and the numbering set out in certain annexes should be identical with the text and numbering of the corresponding OECD standard Code.

(18) To reduce the number of injuries and fatal accidents caused by the failure to raise the front-mounted foldable ROPS for narrow-track tractors in potentially dangerous situations, new requirements based on an ergonomic approach should be included in Annex IX to facilitate and encourage the raising of the ROPS when needed.

(19) As in forestry applications tractors are confronted with higher energy levels from falling and penetrating objects than in agricultural applications, stricter requirements for protection structures against these objects should be required for tractors equipped for forestry applications.

(20) While large parts of the requirements laid down in this Regulation have been carried over from repealed directives, important modifications should be introduced where necessary to update to technical progress, extent the scope to further vehicle categories or to increase the level of safety as regards, for example: access to driving position, emergency exits, control devices and their position, operator’s manual, warnings, symbols and pictograms, protection against hot surfaces, greasing points, jacking points, engine hood, burning rate of cab material, battery isolators, etc.

(21) As the scope of Council Directive 80/720/EEC(5) did not include tractors of category T2 and tractors of category T.4.3 with an offset of the cabin of more than 100 mm, the requirements for operating space and the number of emergency exits should be adapted to cover all tractor categories.

(22) As many of the requirements and test methods carried over from repealed Directives apply only to tractors equipped with pneumatic tyres, specific requirements and test methods should be established for track-laying tractors. This is the case for: driver’s perceived noise level, access to the driving position, control devices, etc.

(23) The same applies to R- and S-category vehicles, for which requirements and test methods should be prescribed for guards and protective devices, operators manual Information, warnings and markings and protection against other mechanical hazards, as tipping operation of trailers.

(24) In addition, vehicles of categories R and S should comply with the requirements of Directive 2006/42/EC of the European Parliament and of the Council(6), where applicable.

(25) As far as the level of safety is maintained, alternative requirements and test procedures should be permitted for tractors equipped with a straddle seat and a handlebar to take into account their specific technical characteristics. This is the case of some of the requirements and test procedures for: driver’s seat, control devices and protection of drive components.

(26) The reference to the requirements in passenger cars’ legislation for seat-belt anchorages and safety belts set out in repealed Directive 2003/37/EC(7) should be substituted by requirements adapted to the specificities of agricultural and forestry tractors.

(27) In order to allow the type-approval authorities to assess the compliance with the requirements for protection against hazardous substances set out in this regulation, these requirements should be based on the level of protection provided by the type of tractor instead of the possible use of a given vehicle. The level of protection required for each particular use of each hazardous substance should be determined in accordance with the relevant EU and/or national legislation.

(28) In order to ensure that technical services meet the same high level of performance standards in all Member States, this Regulation should set out the standards with which technical services have to comply, as well as the procedure for the assessment of that compliance and for the accreditation of those services.

(29) For the purposes of national type-approval granted in accordance with Regulation (EU) No 167/2013, Member States should be free to set construction requirements which differ from those provided for in this Regulation. However, they should have the obligation to approve types of vehicles, systems, components and separate technical units compliant with the requirements provided for this Regulation.

(30) Several entries of Annex I to Regulation (EU) No 167/2013 should be amended to permit laying down requirements for additional vehicle categories where it is necessary.

(31) This Regulation should apply from the date of application of Regulation (EU) No 167/2013,

HAS ADOPTED THIS REGULATION:

CHAPTER I U.K. SUBJECT MATTER AND DEFINITIONS

Article 1 U.K. Subject matter

This Regulation establishes the detailed technical requirements and test procedures regarding vehicle design, construction and assembly for the approval of agricultural and forestry vehicles and their systems, components and separate technical units, the detailed arrangements and requirements with regard to type-approval procedures, virtual testing and conformity of production, the technical specifications with regard to access to repair and maintenance information and the performance standards and criteria for the assessment of technical services in accordance with Regulation (EU) No 167/2013.

Article 2 U.K. Definitions

The following definitions shall apply:

(1)

‘seat reference point (S)’ means the point of intersection in the median longitudinal plane of the seat between the tangential plane at the base of the padded backrest and a horizontal plane. This horizontal plane intersects the lower surface of the seat 150 mm in front of the seat reference point (S) as determined in Appendix 8 to Annex XIV.

(2)

‘control device’ means any device whose direct actuation enables the state or operation of the tractor or of any equipment linked to it to be altered.

(3)

‘shield’ means a protective device located immediately in front of a dangerous part and which, either on its own or with other parts of the machine, protects on all sides against contact with the dangerous part.

(4)

‘guard’ means a protective device which, by means of a rail, grille or similar device, provides the necessary safety distance preventing contact with the dangerous part.

(5)

‘hood’ means a protective device located in front of the dangerous part and which protects against contact with it on the covered side.

(6)

‘firmly attached’ means that removal of such devices should be possible only with the aid of tools.

(7)

‘hot surface’ means any metal surface of the tractor that reaches, during the normal use envisaged by the Manufacturer, a temperature higher than 85 °C or any plastic surface that reaches a temperature higher than 100 °C.

CHAPTER II U.K. VEHICLE CONSTRUCTION AND GENERAL TYPE-APPROVAL REQUIREMENTS

Article 3 U.K. Manufacturer’s general obligations regarding vehicle construction

1. Manufacturers shall equip agricultural and forestry vehicles with systems, components and separate technical units affecting occupational safety that are designed, constructed and assembled so as to enable the vehicle in normal use and maintained according to the prescriptions of the manufacturer to comply with the detailed technical requirements and testing procedures set out in Articles 4 to 32.

2. Manufacturers shall demonstrate by means of physical demonstration testing to the approval authority that the agricultural and forestry vehicles made available on the market, registered or entering into service in the Union comply with the detailed technical requirements and test procedures laid down in Articles 4 to 32.

3. Manufacturers shall ensure that spare parts and equipment that are made available on the market or are entering into service in the Union comply with the detailed technical requirements and test procedures referred to in this Regulation. An approved agricultural and forestry vehicle equipped with such a spare part or equipment shall meet the same test requirements and performance limit values as a vehicle equipped with an original part.

4. Manufacturers shall ensure that type-approval procedures for verifying conformity of production are followed as regards the detailed vehicle construction requirements laid down in this Regulation.

Article 4 U.K. Application of UNECE regulations

The UNECE regulations and amendments thereto set out in Annex I to this Regulation shall apply to type-approval of agricultural and forestry vehicles subject to the conditions laid down in this Regulation.

Article 5 U.K. Recognition of test reports issued on the basis of OECD Codes for the purposes of EU type-approval

In accordance with Article 50 of Regulation (EU) No 167/2013, the test reports issued on the basis of OECD Codes set out in Annex II to this Regulation shall be recognised for the purpose of EU type approval as an alternative to the test report issued on the basis of this Regulation.

Article 6 U.K. Arrangements with regard to type-approval procedures, including the requirements relating to virtual testing

The arrangements with regard to type-approval procedures referred to in Article 20 (8) of Regulation (EU) No 167/2013 and the requirements relating to virtual testing referred to in Article 27(6) of that Regulation shall be laid down in Annex III to this Regulation.

Article 7 U.K. Arrangements with regard to conformity of production

The arrangements with regard to conformity of production referred to in Article 28(6) of Regulation (EU) No 167/2013 shall be laid down in Annex IV to this Regulation.

Article 8 U.K. Requirements with regard to access to repair and maintenance information

The requirements with regard to access to repair and maintenance information referred to in Article 53(12) of Regulation (EU) No 167/2013 shall be laid down in Annex V to this Regulation.

Article 9 U.K. Requirements applying to roll-over protection structures (dynamic testing)

The test procedures and requirements applying to roll-over protection structures as regards dynamic testing for vehicles of categories T1, T4.2 and T4.3 referred to in Article 18(2)(a) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex VI to this Regulation.

Article 10 U.K. Requirements applying to roll-over protection structures (track-laying tractors)

The test procedures and requirements applying to roll-over protection structures as regards track-laying tractors for vehicles of categories C1, C2, C4.2 and C4.3 referred to in Article 18(2)(a) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex VII to this Regulation.

Article 11 U.K. Requirements applying to roll- over protection structures (static testing)

As an alternative to the requirements laid down in Article 9 and Article 10, manufacturers may choose to comply with the requirements of this Article, where the type of vehicle falls within the field of application set out in Annex VIII to this Regulation. The test procedures and requirements applying to roll-over protection structures as regards static testing for vehicles of categories T1/C1, T4.2/C4.2 and T4.3/C4.3 referred to in Article 18(2)(a) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex VIII to this Regulation.

Article 12 U.K. Requirements applying to roll-over protection structures (front mounted roll-over protective structures on narrow-track tractors)

The test procedures and requirements applying to front mounted roll-over protective structures as regards narrow- track tractors [F1 for vehicles of categories T2/C2, T3/C3 and T4.3/C4.3] referred to in Article 18(2)(a) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex IX to this Regulation.

Textual Amendments

F1 Substituted by Commission Delegated Regulation (EU) 2018/830 of 9 March 2018 amending Annex I to Regulation (EU) No 167/2013 of the European Parliament and of the Council and Commission Delegated Regulation (EU) No 1322/2014 as regards the adaptation of the vehicle construction and general requirements for the approval of agricultural and forestry vehicles.

Article 13 U.K. Requirements applying to roll-over protection structures (rear mounted roll-over protective structures on narrow-track tractors)

The test procedures and requirements applying to rear mounted roll-over protective structures as regards narrow-track tractors for vehicles of categories T2/C2, T3/C3 and T4.3/C4.3 referred to in Article 18(2)(a) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex X to this Regulation.

Article 14 U.K. Requirements applying to falling objects protection structures

The test procedures and requirements applying to falling objects protection structures for vehicles of categories T and C referred to in Article 18(2)(b) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XI to this Regulation.

Article 15 U.K. Requirements applying to passenger seats

The test procedures and requirements applying to passenger seats for vehicles of categories T and C referred to in Article 18(2)(c) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XII to this Regulation.

Article 16 U.K. Requirements applying to the driver’s exposure to noise level

The test procedures and requirements applying to the driver’s exposure to noise level for vehicles of categories T and C referred to in Article 18(2)(d) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XIII to this Regulation.

Article 17 U.K. Requirements applying to the driving seat

The test procedures and requirements applying to the driving seat for vehicles of categories T and C referred to in Article 18(2)(e) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XIV to this Regulation.

Article 18 U.K. Requirements applying to operating space and to access to the driving position

The test procedures and requirements applying to operating space and to access to the driving position for vehicles of categories T and C referred to in Article 18(2)(f) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XV to this Regulation.

Article 19 U.K. Requirements applying to power take-offs

The test procedures and requirements applying to power take-offs for vehicles of categories T and C referred to in Article 18(2)(g) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XVI to this Regulation.

Article 20 U.K. Requirements applying to the protection of drive components

The test procedures and requirements applying to protection of drive components for vehicles of categories T and C referred to in Article 18(2)(h) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XVII to this Regulation.

Article 21 U.K. Requirements applying to seat-belt anchorages

The test procedures and requirements applying to seat-belt anchorages for vehicles of categories T and C referred to in Article 18(2)(i) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XVIII to this Regulation.

Article 22 U.K. Requirements applying to safety belts

The test procedures and requirements applying to safety belts for vehicles of categories T and C referred to in Article 18(2)(j) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XIX to this Regulation.

Article 23 U.K. Requirements applying to the protection against penetrating objects

The test procedures and requirements applying to the protection against penetrating objects for vehicles of categories T and C referred to in Article 18(2)(k) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XX to this Regulation.

Article 24 U.K. Requirements applying to exhaust systems

The test procedures and requirements applying to exhaust systems for vehicles of categories T and C referred to in Article 18(2)(l) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XXI to this Regulation.

Article 25 U.K. Requirements applying to the operator’s manual

The requirements applying to the operator’s manual, including aspects relating to the protection against hazardous substances and operation and maintenance of the vehicle, for vehicles of categories T, C, R and S referred to in points (l), (n) and (q) of Article 18(2) of Regulation (EU) No 167/2013 shall be laid down in Annex XXII to this Regulation.

Article 26 U.K. Requirements applying to control devices, including safety and reliability of control systems and emergency and automatic stop devices

The test procedures and requirements applying to control devices, including safety and reliability of control systems and emergency and automatic stop devices for vehicles of categories T and C referred to in Article 18(2)(o) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XXIII to this Regulation.

Article 27 U.K. Requirements applying to the protection against other mechanical hazards

The test procedures and requirements applying to the protection against mechanical hazards, including aspects relating to the protection against rough surfaces, sharp edges and angles, rupture of pipes carrying fluids and uncontrolled movement of the vehicle, other than those mentioned in Articles 9 to 14, 19 and 23 for vehicles of categories T, C, R and S referred to in Article 18(2)(p) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XXIV to this Regulation.

Article 28 U.K. Requirements applying to guards and protective devices

The test procedures and requirements applying to guards and protective devices for vehicles of categories T, C, R and S referred to in Article 18(2)(r) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XXV to this Regulation.

Article 29 U.K. Requirements applying to information, warnings and markings

The test procedures and requirements applying to information, warnings and markings, including aspects relating to the warning signals with regard to braking and the operation and maintenance of the vehicle, for vehicles of categories T, C, R and S referred to in Article 18(2)(s) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XXVI to this Regulation.

Article 30 U.K. Requirements applying to materials and products

The test procedures and requirements applying to materials and products for vehicles of categories T and C referred to in Article 18(2)(t) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XXVII to this Regulation.

Article 31 U.K. Requirements applying to batteries

The test procedures and requirements applying to batteries for vehicles of categories T and C referred to in Article 18(2)(u) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XXVIII to this Regulation.

Article 32 U.K. Requirements applying to protection against hazardous substances

The test procedures and requirements applying to protection against hazardous substances for vehicles of categories T and C referred to in Article 18(2)(l) of Regulation (EU) No 167/2013 shall be conducted and verified in accordance with Annex XXIX to this Regulation.

CHAPTER III U.K. REQUIREMENTS RELATING TO TECHNICAL SERVICES

Article 33 U.K. Performance standards and assessment of technical services

Technical services have to comply with the performance standards and the procedure for their assessment referred to in Article 61 of Regulation (EU) No 167/2013, which shall be verified in accordance with Annex XXX to this Regulation.

Article 34 U.K. Permissibility of self-testing

Self-testing by in-house technical services referred to in Article 60(1) of Regulation (EU) No 167/2013 may only be conducted where permitted in Annex III to this Regulation.

CHAPTER IV U.K. NATIONAL TYPE-APPROVAL OF VEHICLES, SYSTEMS, COMPONENTS OR SEPARATE TECHNICAL UNITS

Article 35 U.K. National type-approval of vehicles, systems, components or separate technical units

National authorities shall not refuse to grant national type-approval to a type of vehicle, system, component or separate technical unit on grounds relating to the construction requirements where the vehicle, system, component or separate technical unit complies with the requirements set out in this Regulation.

CHAPTER V U.K. FINAL PROVISIONS

[F2 Article 35a U.K. Transitional provisions

1. Until 26 June 2018 , national authorities shall continue to grant type-approvals to agricultural and forestry vehicle types, or types of systems, components or separate technical units in accordance with this Regulation, in its version applicable on 25 June 2018 .

2. Until 31 December 2018 , the Member States shall permit the placing on the market, registration or entry into service of agricultural and forestry vehicles, systems, components or separate technical units based on a type approved in accordance with this Regulation, in its version applicable on 25 June 2018 .]

Textual Amendments

F2 Inserted by Commission Delegated Regulation (EU) 2018/830 of 9 March 2018 amending Annex I to Regulation (EU) No 167/2013 of the European Parliament and of the Council and Commission Delegated Regulation (EU) No 1322/2014 as regards the adaptation of the vehicle construction and general requirements for the approval of agricultural and forestry vehicles.

Article 36 U.K. Amendments to Annex I to Regulation (EU) No 167/2013

Annex I to Regulation (EU) No 167/2013 is amended as follows:

(1)

in row No 39, the entries corresponding to vehicle categories Ca and Cb are replaced by ‘X’;

(2)

in row No 41, the entries corresponding to vehicle categories T2a and T2b are replaced by ‘X’;

(3)

in row No 43, the entries corresponding to vehicle categories Ca and Cb are replaced by ‘X’;

(4)

in row No 44, the entries corresponding to vehicle categories Ca and Cb are replaced by ‘X’.

Article 37 U.K. Entry into force and application

This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union.

It shall apply from 1 January 2016.

This Regulation shall be binding in its entirety and directly applicable in all Member States.

SUMMARY

[F3 Annex Number	Annex title
Vehicle construction and general type-approval requirements
I	Application of UNECE regulations
II	Recognition of test reports issued on the basis of OECD Codes for the purposes of EU type-approval
III	Arrangements with regard to type-approval procedures, including the requirements relating to virtual testing
IV	Arrangements with regard to conformity of production
V	Requirements with regard to access to repair and maintenance information
VI	Requirements applying to roll-over protection structures (dynamic testing)
VII	Requirements applying to roll-over protection structures (track-laying tractors)
VIII	Requirements applying to roll-over protection structures (static testing)
IX	Requirements applying to roll-over protection structures (front mounted roll-over protective structures on narrow-track tractors)
X	Requirements applying to roll-over protection structures (rear mounted roll-over protective structures on narrow-track tractors)
XI	Requirements applying to falling objects protection structures
XII	Requirements applying to passenger seats
XIII	Requirements applying to the driver’s exposure to noise level
XIV	Requirements applying to the driving seat
XV	Requirements applying to operating space and to access to the driving position
XVI	Requirements applying to power take-offs
XVII	Requirements applying to the protection of drive components
XVIII	Requirements applying to seat-belt anchorages
XIX	Requirements applying to safety belts
XX	Requirements applying to the protection against penetrating objects
XXI	Requirements applying to exhaust systems
XXII	Requirements applying to the operator’s manual
XXIII	Requirements applying to control devices, including safety and reliability of control systems and emergency and automatic stop devices
XXIV	Requirements applying to the protection against other mechanical hazards
XXV	Requirements applying to guards and protective devices
XXVI	Requirements applying to information, warnings and markings
XXVII	Requirements applying to materials and products
XXVIII	Requirements applying to batteries
XXIX	Requirements applying to protection against hazardous substances
Requirements relating to technical services
XXX	Performance standards and assessment of technical services]

ANNEX I

Application of UNECE regulations

UNECE regulation No	Subject	Series of amendments	OJ Reference	Applicability
14	Safety-belt anchorages, ISOFIX anchorages systems and ISOFIX top tether anchorages	Supplement 1 to the 07 series of amendments	OJ L 109, 28.4.2011, p. 1	T and C
16	Safety belts, restraint systems and child restraint systems	Supplement 1 to the 06 series of amendments	OJ L 233, 9.9.2011, p. 1	T and C
43	Safety glazing	Supplement 12 to the 00 series of amendments	OJ L 230, 31.8.2010, p. 119	T and C
60	Driver operated controls — identification of controls, tell-tales and indicators (moped/motorcycles)		OJ L 95, 31.3.2004, p. 10	T and C
79	Steering equipment	Supplement 3 to the 01 series of amendments and Corrigendum 20 January 2006	OJ L 137, 27.5.2008, p. 25	T and C

Explanatory note: U.K.

The fact that a component is included in this list does not make its installation mandatory. For certain components, however, mandatory installation requirements are laid down in other Annexes to this Regulation.

[F2 The transitional provisions of the UNECE regulations listed in this table shall apply, except where specific alternative dates are provided for in this Regulation. Compliance with prescriptions in accordance with subsequent amendments to those listed in this table shall also be accepted.]

ANNEX II

Recognition of test reports issued on the basis of OECD Codes for the purposes of EU type-approval

[F1 Test report on the basis of OECD standard Code No	Subject	Edition	Applicability	Alternative to the EU test report on the basis of
3	Official testing of protective structures on agricultural and forestry tractors (dynamic test)	Edition 2017 -February 2017-	T1, T4.2 and T4.3	Annex VI Annex XVIII (if the seat-belt anchorages have been tested)
4	Official testing of protective structures on agricultural and forestry tractors (static test)	Edition 2017 -February 2017-	T1/C1, T4.2/C4.2 and T4.3/C4.3	Annex VIII and Annex XVIII (if the seat-belt anchorages have been tested)
5	Official measurement of noise at the driving position(s) on agricultural and forestry tractors	Edition 2017 -February 2017-	T and C	Annex XIII
6	Official testing of front mounted roll-over protective structures on narrow-track wheeled agricultural and forestry tractors	Edition 2017 -February 2017-	T2/C2, T3/C3 and T4.3/C4.3	Annex IX (if the performance requirements for foldable roll-over protection structures have been tested and met) and Annex XVIII (if the seat-belt anchorages have been tested)
7	Official testing of rear mounted roll-over protective structure on narrow-track wheeled agricultural and forestry tractors	Edition 2017 -February 2017-	T2/C2, T3/C3 and T4.3/C4.3	Annex X (if the performance requirements for foldable roll-over protection structures have been tested and met) and Annex XVIII (if the seat-belt anchorages have been tested)
8	Official testing of protective structures on agricultural and forestry track-laying tractors	Edition 2017 -February 2017-	C1, C2, C4.2 and C4.3	Annex VII and Annex XVIII (if the seat-belt anchorages have been tested)
10	Official testing of falling object protective structures on agricultural and forestry tractors	Edition 2017 -February 2017-	T and C	Annex XI Part C]

ANNEX III

Arrangements with regard to type-approval procedures, including the requirements relating to virtual testing U.K.

1. Type-approval process U.K.

When receiving an application for vehicle type-approval, the approval authority shall:

1.1.

verify that all EU type-approval certificates issued and test reports granted pursuant to Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation which are applicable for vehicle type-approval cover the vehicle type and correspond to the prescribed requirements;

1.2.

by reference to the documentation make sure that the vehicle specifications and data contained in the vehicle information document are included in the data in the information packages and in the EU type-approval certificates issued in accordance with Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation;

1.3.

on a selected sample of vehicles from the type to be approved carry out or arrange to be carried out inspections of vehicle parts and systems to verify that the vehicle(s) is/are built in accordance with the relevant data contained in the authenticated information package in respect of Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation;

1.4.

carry out or arrange to be carried out relevant installation checks in respect of separate technical units where applicable;

1.5.

carry out or arrange to be carried out necessary checks in respect of the presence of the subjects provided for in Annex I of Regulation (EU) No 167/2013;

2. Combination of technical specifications U.K.

The number of vehicles to be submitted shall be sufficient to permit the proper check of the various combinations to be type-approved according to the following criteria:

2.1.

propulsion unit;

2.2.

transmission;

2.3.

powered axles (number, position and interconnection);

2.4.

steered axles (number and position);

2.5.

braking system and braked axles (number);

2.6.

roll-over protection structure;

2.7.

protection against hazardous substances.

3. Specific provisions U.K.

Where no approval certificates or test reports in respect of the subjects covered by Regulation (EU) No 167/2013 or the delegated and implementing acts adopted pursuant to that Regulation are available, the approval authority shall:

3.1.

arrange for the necessary tests and checks as required by Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation;

3.2.

verify that the vehicle conforms to the particulars in the vehicle information folder and that it meets the technical requirements of Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation;

3.3.

carry out or arrange to be carried out relevant installation checks in respect of components and separate technical units where applicable.

4. Procedures to be followed during multi-stage EU type-approval U.K.

4.1. General U.K.

4.1.1. The satisfactory operation of the process of multi-stage EU type-approval requires joint action by all the manufacturers concerned. To this end type-approval authorities shall ensure, before granting first and subsequent stage approval, that suitable arrangements exist between the relevant manufacturers for the supply and interchange of documents and information such that the completed vehicle type meets the technical requirements of Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation. Such information shall include details of relevant system, component and separate technical unit approvals and of vehicle parts which form part of the incomplete vehicle but are not yet approved. U.K.

4.1.2. EU Type-approvals in accordance with point 4 are granted on the basis of the current state of completion of the vehicle type and shall incorporate all approvals granted at earlier stages. U.K.

4.1.3. Each manufacturer in a multi-stage EU type-approval process is responsible for the approval and conformity of production of all systems, components or separate technical units manufactured by him or added by him to the previously built stage. He is not responsible for subjects which have been approved in an earlier stage except in those cases where he modifies relevant parts to an extent that the previously granted approval becomes invalid. U.K.

4.2. Procedures U.K.

The approval authority shall:

4.2.1.

verify that all EU type-approval certificates issued and test reports granted pursuant to Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation which are applicable for vehicle type-approval cover the vehicle type at its state of completion and correspond to the prescribed requirements;

4.2.2.

ensure that all the relevant data, taking account of the state of completion of the vehicle, is included in the information folder;

4.2.3.

by reference to the documentation make sure that the vehicle specification(s) and data contained in the vehicle information folder are included in the data in the information packages and in the EU type-approval certificates, in accordance with Regulation (EU) No 167/2013 or the delegated and implementing acts adopted pursuant to that Regulation; and in the case of a completed vehicle, where an item number in the information folder is not included in any of the information packages, confirm that the relevant part of characteristic conforms to the particulars in the information folder;

4.2.4.

on a selected sample of vehicles from the type to be approved carry out or arrange to be carried out inspections of vehicle parts and systems to verify that the vehicle(s) is/are built in accordance with the relevant data contained in the authenticated information package in respect of Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation;

4.2.5.

Carry out or arrange to be carried out relevant installation checks in respect of separate technical units where applicable.

4.3. The number of vehicles to be inspected for the purposes of point 4.2.4 shall be sufficient to permit the proper control of the various combinations to be EU type-approved according to the state of completion of the vehicle and the criteria set-out in point 2. U.K.

5. Conditions under which virtual testing has to be performed and requirements which can be subject to virtual testing U.K.

5.1. Objectives and scope U.K.

Point 5 lays down appropriate provisions concerning virtual testing in accordance with Article 27(6) of Regulation (EU) No 167/2013. It shall not apply to the second subparagraph of Article 27(3) of that Regulation.

5.2. List of requirements which may be subject to virtual testing U.K.

[F3 Table 1

List of requirements which may be subject to virtual testing

Delegated act reference	Annex No	Requirements	Restrictions/comments
Regulation (EU) No 1322/2014	IX	continuous or interrupted roll over behaviour in case of a laterally overturning narrow track tractor with a protective frame mounted in front of the driver’s seat	Section B4
Regulation (EU) No 1322/2014	XV	Requirements applying to operating space and to access to the driving position	Only requirements related to dimensions and positioning
Regulation (EU) 2015/208	VII	Requirements on the field of vision and windscreen wipers	Only requirements related to dimensions, positioning and visibility
Regulation (EU) 2015/208	IX	Requirements on rear view mirrors	Only requirements related to dimensions, positioning and visibility
Regulation (EU) 2015/208	XII	Requirements on lighting installation	Only requirements related to dimensions, positioning and visibility in point 5 and 6 (with the exception of colorimetric or photometric requirements)
Regulation (EU) 2015/208	XIII	Requirements on vehicle occupant protection, including interior fittings, head restraints, seat belts, vehicle doors	Part 2 Only requirements related to dimensions, including detailed shape, and positioning
Regulation (EU) 2015/208	XIV	Requirements on vehicle exterior and accessories	Only requirements related to dimensions, including detailed shape, and positioning]

6. Conditions under which virtual testing has to be performed U.K.

6.1. Virtual test pattern U.K.

The following scheme shall be used as a basic structure for describing and conducting virtual testing:

6.1.1.

purpose;

6.1.2.

structure model;

6.1.3.

boundary conditions;

6.1.4.

load assumptions;

6.1.5.

calculation;

6.1.6.

assessment;

6.1.7.

Documentation.

6.2. Fundamentals of computer simulation and calculation U.K.

6.2.1. Mathematical model U.K.

The mathematical model shall be supplied by the manufacturer. It shall reflect the complexity of the structure of the vehicle, system and components to be tested in relation to the requirements. The same provisions shall apply mutatis mutandis for testing components or technical units independently from the vehicle.

[F3 6.2.2. Validation process of the mathematical model U.K.

The mathematical model shall be validated in comparison with the actual test conditions. A physical test shall be conducted for the purposes of comparing the results obtained when using the mathematical model with the results of a physical test. Comparability of the test results shall be proven. For that purpose, manufacturers shall provide the technical service with a correlation report containing the information on the mathematical model and the correlation between the results obtained with such model and those obtained in the physical tests in accordance with the scheme set out in point 6.1. A validation report, confirming the compliance of the mathematical model, shall be drafted by the manufacturer or by the technical service and submitted to the approval authority. Any change made to the mathematical model or to the software likely to invalidate the validation report shall be brought to the attention of the approval authority, which may require that a new validation process is conducted. The flow chart of the validation process is shown in Figure 1 of point 7.]

6.2.3. Documentation U.K.

The data and auxiliary tools used for the simulation and calculation shall be made available by the manufacturer and be documented in a suitable way.

6.2.4. Tools and support U.K.

At the request of the technical service, the manufacturer shall supply or provide access to the necessary tools, including appropriate software.

6.2.5. In addition, the manufacturer shall provide appropriate support to the technical service. U.K.

6.2.6. Providing access and support to a technical service does not detract from any obligation of the technical service regarding the skills of its personnel, the payment of licence rights and respect of confidentiality. U.K.

[F4 6.2.7. Approval process when using virtual testing U.K.

The compliance with the requirements set out in Table 1 of point 5.2. may be demonstrated by virtual testing procedures only if these are carried out in accordance with a mathematical model validated in accordance with the requirements set out in point 6.2.2. The applicability and restrictions of the model shall be agreed with the technical services and shall be subject to the approval of the approval authority.

Textual Amendments

F4 Inserted by Commission Delegated Regulation (EU) 2016/1788 of 14 July 2016 amending Regulation (EU) No 167/2013 of the European Parliament and of the Council as regards the list of requirements for vehicle EU type-approval, and amending and correcting Commission Delegated Regulations (EU) No 1322/2014, (EU) 2015/96, (EU) 2015/68 and (EU) 2015/208 with regard to vehicle construction and general requirements, to environmental and propulsion unit performance requirements, to vehicle braking requirements and to vehicle functional safety requirements (Text with EEA relevance).

6.2.8. Virtual testing test report U.K.

A test report of the virtual testing results shall be provided by the technical service. The test report should be coherent with the correlation report and the validation report and shall include at least the following elements: the building of a virtual prototype, the simulation inputs and the simulation results related to the technical requirements.]

7. Validation process virtual testing U.K.

Figure 1 Virtual testing validation process flow chart U.K.

Textual Amendments

F4 Inserted by Commission Delegated Regulation (EU) 2016/1788 of 14 July 2016 amending Regulation (EU) No 167/2013 of the European Parliament and of the Council as regards the list of requirements for vehicle EU type-approval, and amending and correcting Commission Delegated Regulations (EU) No 1322/2014, (EU) 2015/96, (EU) 2015/68 and (EU) 2015/208 with regard to vehicle construction and general requirements, to environmental and propulsion unit performance requirements, to vehicle braking requirements and to vehicle functional safety requirements (Text with EEA relevance).

ANNEX IV

Arrangements with regard to conformity of production U.K.

1. Definitions U.K.

For the purposes of this Annex the following definitions shall apply:

1.1.

‘quality management system’ means a set of interrelated or interacting elements that organisations use to direct and control how quality policies are implemented and quality objectives are achieved;

1.2.

‘audit’ means an evidence-gathering process used to evaluate how well audit criteria are being applied; it should be objective, impartial and independent, and the audit process should be both systematic and documented;

1.3.

‘corrective actions’ means a problem-solving process with subsequent steps taken to remove the causes of a nonconformity or undesirable situation and designed to prevent their recurrence;

2. Purpose U.K.

2.1. The conformity of production procedure aims to ensure that each vehicle, system, component, separate technical unit, part or equipment produced is in conformity with the specification, performance and marking requirements of the approved type. U.K.

2.2. Procedures include inseparably the assessment of quality management systems, referred as ‘initial assessment’ and set out in section 3. and verification and production-related controls, referred to as ‘product conformity arrangements’ and set out in section 4. U.K.

3. Initial assessment U.K.

3.1. Before granting type-approval, the approval authority shall verify the existence of satisfactory arrangements and procedures established by the manufacturer for ensuring effective control so that vehicles, systems, components or separate technical units when in production conform to the approved type. U.K.

3.2. Guidelines for quality and/or environmental management systems auditing set out in the EN ISO 19011:2011 standard shall apply to the initial assessment. U.K.

3.3. The requirements referred to in point 3.1 shall be verified to the satisfaction of the approval authority granting type-approval. The approval authority shall be satisfied with the initial assessment and the product conformity arrangements in section 4. taking account as necessary of one of the arrangements described in points 3.3.1 to 3.3.3 or a combination of those arrangements in full or in part as appropriate. U.K.

3.3.1. The initial assessment and/or verification of product conformity arrangements shall be carried out by the approval authority granting the approval or an appointed body acting on behalf of the approval authority. U.K.

3.3.1.1. When considering the extent of the initial assessment to be carried out, the approval authority may take account of available information relating to: U.K.

3.3.1.1.1.

the manufacturer’s certification described in point 3.3.3, which has not been qualified or recognised under that point;

3.3.1.1.2.

in the case of components or separate technical units type-approvals, quality system assessments performed in the component or separate technical unit manufacturer’s premises by vehicle manufacturer(s), according to one or more of the industry sector specifications satisfying the requirements in harmonised standard EN ISO 9001:2008.

3.3.2. The initial assessment and/or verification of product conformity arrangements may also be carried out by the approval authority of another Member State, or the appointed body designated for this purpose by the approval authority. U.K.

3.3.2.1. In such a case, the approval authority of the other Member State shall prepare a statement of compliance outlining the areas and production facilities it has covered as relevant to the vehicles, systems, components or separate technical units to be type-approved. U.K.

3.3.2.2. On receiving an application for a compliance statement from the approval authority of a Member State granting type-approval, the approval authority of another Member State shall send forthwith the statement of compliance or advise that it is not in a position to provide such a statement. U.K.

3.3.2.3. The statement of compliance shall include at least the following: U.K.

3.3.2.3.1.

group or company (e.g. XYZ automotive);

3.3.2.3.2.

particular organisation (e.g. European division);

3.3.2.3.3.

plants/sites (e.g. Engine plant 1 (United Kingdom) — vehicle plant 2 (Germany));

3.3.2.3.4.

vehicle/component range (e.g. All category T1 models);

3.3.2.3.5.

areas assessed (e.g. Engine assembly, body pressing and assembly, vehicle assembly);

3.3.2.3.6.

documents examined (e.g. Company and site quality manual and procedures);

3.3.2.3.7.

date of the assessment (e.g. Audit conducted from 18 to 30.5.2013);

3.3.2.3.8.

planned monitoring visit (e.g. October 2014).

3.3.3. The approval authority shall also accept the manufacturer’s suitable certification to harmonised standard EN ISO 9001:2008 or an equivalent harmonised standard as satisfying the initial assessment requirements of point 3.3. The manufacturer shall provide details of the certification and undertake to inform the approval authority of any revisions to its validity or scope. U.K.

3.4. For the purpose of vehicle type-approval, the initial assessments carried out for granting approvals for systems, components and separate technical units of the vehicle need not be repeated but shall be complemented by an assessment covering the locations and activities relating to the assembly of the whole vehicle not covered by the former assessments. U.K.

4. Product conformity arrangements U.K.

4.1. Every vehicle, system, component or separate technical unit approved pursuant to Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation, pursuant to a UNECE regulation annexed to the Revised 1958 Agreement, or pursuant to a complete test report issued on the basis of OECD Codes listed in Annex II to this Regulation, shall be so manufactured as to conform to the approved type by meeting the requirements of this Annex, Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation, as well as the relevant UNECE regulation(s) and OECD Code(s). U.K.

4.2. Before granting a type-approval pursuant to Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation, a UNECE regulation annexed to the Revised 1958 Agreement or an OECD Code, the approval authority of a Member State shall verify the existence of adequate arrangements and documented control plans, to be agreed with the manufacturer for each approval, to carry out at specified intervals those tests or associated checks necessary to verify continued conformity with the approved type, including, where applicable, tests specified in Regulation (EU) No 167/2013, the UNECE regulation and the OECD Code. U.K.

4.3. The holder of the type-approval shall, in particular: U.K.

4.3.1.

ensure the existence and application of procedures for effective control of the conformity of products (vehicles, systems, components or separate technical units) to the approved type;

4.3.2.

have access to the testing or other appropriate equipment necessary for checking conformity to each approved type;

4.3.3.

ensure that test or check result data are recorded and that annexed documents remain available for a period of up to 10 years to be determined in agreement with the approval authority;

4.3.4.

analyse the results of each type of test or check, in order to verify and ensure the stability of the product characteristics, making allowance for variation in industrial production;

4.3.5.

ensure that for each type of product, at least the checks and the tests prescribed in Regulation (EU) No 167/2013 and the delegated and implementing acts adopted pursuant to that Regulation as well as those set out in the relevant UNECE Regulation or OECD Code are carried out;

4.3.6.

ensure that any set of samples or test pieces giving evidence of non-conformity in the type of test in question gives rise to a further sampling and test or check. All the necessary steps shall be taken to restore the production process to ensure conformity with the approved type;

4.3.7.

in the case of vehicle type-approval, the checks referred to in point 4.3.5 shall at least consist in verifying the correct built specifications in relation to the approval and the information required for certificates of conformity.

4.4. In the case of step-by-step, mixed or multi-stage type-approvals, the approval authority granting whole vehicle type-approval may request specific details regarding compliance with the conformity of production requirements set out in this Annex from any approval authority that granted type-approval of any relevant system, component or separate technical unit. U.K.

4.5. If the approval authority granting whole vehicle type-approval is not satisfied with the reported information referred to in point 4.4 and has communicated this in writing to the manufacturer in question and the approval authority granting type-approval for the system, component or separate technical unit, the approval authority granting whole vehicle type-approval shall demand additional conformity of production audits or checks to be performed at the site of the manufacturer(s) of those systems, components or separate technical units and the results shall immediately be made available to the approval authority concerned. U.K.

4.6. If points 4.4 and 4.5 apply and the further audit or check results are deemed not to be satisfactory in the opinion of the approval authority granting whole vehicle type-approval, the manufacturer shall ensure that conformity of production is restored as soon as possible by corrective actions to the satisfaction of the approval authority granting whole vehicle type-approval and to the satisfaction of the approval authority granting type-approval of the system, component or separate technical unit. U.K.

5. Continued verification arrangements U.K.

5.1. The authority which has granted type-approval may at any time verify the conformity of production control methods applied in each production facility by means of periodic audits. The manufacturer shall for that purpose allow access to the manufacture, inspection, testing, storage and distribution sites and shall provide all necessary information with regard to the quality management system documentation and records. U.K.

5.1.1. The normal approach for such periodic audits shall be to monitor the continued effectiveness of the procedures laid down in sections 3 and 4 (initial assessment and product conformity arrangements) of this Annex. U.K.

5.1.1.1. Surveillance activities carried out by the technical services (qualified or recognised as required in point 3.3.3) shall be accepted as satisfying the requirements of point 5.1.1 with regard to the procedures established at initial assessment. U.K.

5.1.1.2. The normal frequency of these verifications by the approval authority (other than those referred to in point 5.1.1.1) shall be such as to ensure that the relevant conformity of production controls applied in accordance with sections 3 and 4 are reviewed over a period consistent with the climate of trust established by the approval authority. U.K.

5.2. At every review, the records of tests, checks and production records, and in particular the records of those tests or checks documented as required in point 4.2, shall be available to the inspector. U.K.

5.3. The inspector may select random samples to be tested in the manufacturer’s laboratory or in the facilities of the technical service, in which case only physical tests shall be carried out. The minimum number of samples may be determined according to the results of the manufacturer’s own verification. U.K.

5.4. Where the level of control appears unsatisfactory, or when it seems necessary to verify the validity of the tests carried out in application of point 5.2, the inspector shall select samples to be sent to the technical service to perform physical tests in accordance with the requirements set out in section 4 and in Regulation (EU) No 167/2013, the delegated and implementing acts adopted pursuant to that Regulation, the relevant UNECE Regulation or OECD Code. U.K.

5.5. Where unsatisfactory results are found during an inspection or a monitoring review, the approval authority shall ensure that all necessary steps are taken to restore conformity of production as rapidly as possible. U.K.

5.6. Where Regulation (EU) No 167/2013 requires compliance with UNECE regulations or allows to use complete test reports issued on the basis of OECD standard Codes as an alternative to the requirements set out in the delegated acts adopted pursuant to that Regulation, the manufacturer may choose to apply the provisions of this Annex as an alternative to the conformity of production requirements in the respective UNECE regulations or OECD Codes. However, if point 4.5 or 4.6 apply, all separate conformity of production requirements in UNECE Regulations or OECD Codes have to be complied with to the satisfaction of the approval authority until it decides that conformity of production has been restored. U.K.

ANNEX V

Requirements with regard to access to repair and maintenance information U.K.

LIST OF APPENDICES U.K.

[F3 Appendix Number	Appendix title
1	Access to vehicle OBD and vehicle repair and maintenance information
2	Information to enable the development of generic diagnostic tools]

1. Definition U.K.

For the purposes of this Annex the following definition shall apply: ‘access to Vehicle OBD and Vehicle Repair and Maintenance Information’ means the availability of all OBD and repair and maintenance information required for the inspection, diagnosis, servicing or repair of the vehicle.

2. Compliance with access to vehicle OBD and vehicle repair and maintenance information requirements in the type-approval procedure U.K.

2.1. The manufacturer shall ensure compliance with the technical requirements in this Annex regarding access to vehicle OBD and vehicle repair and maintenance information. U.K.

2.2. Approval authorities shall grant type-approval only after receiving from the manufacturer a Certificate on Access to Vehicle OBD and Vehicle Repair and Maintenance Information. U.K.

2.3. The Certificate on Access to Vehicle OBD and Vehicle Repair and Maintenance Information shall serve as the proof of compliance with Chapter XV of Regulation (EU) No 167/2013. U.K.

2.4. The Certificate on Access to Vehicle OBD and Vehicle Repair and Maintenance Information shall be drawn up in accordance with the model referred to in Article 53(8)(3) to Regulation (EU) No 167/2013. U.K.

3. Fees for access U.K.

In addition to time-based access under Article 55 of Regulation (EU) No 167/2013, manufacturers may offer transaction-based access for which fees are charged per transaction and not based on the time for which access is granted. Where manufacturers offer both time-based and transaction-based access systems, independent repairers shall choose a preferred access system, either time-based or transaction based.

4. Service parts, diagnostic tools and test equipment U.K.

4.1. In the context of Article 53 (6) of Regulation (EU) No 167/2013, the manufacturer shall make the following information available to interested parties on the basis of individual arrangements to which the principle of Article 55 of Regulation (EU) No 167/2013 apply and to provide contact details on its website: U.K.

4.1.1.

relevant information to enable the development of replacement components which are critical to the correct functioning of the OBD system;

4.1.2.

information to enable the development of generic diagnostic tools as listed in Appendix 2.

4.2. For the purposes of point 4.1.1, the development of replacement components shall not be restricted by any of the following: U.K.

4.2.1.

the unavailability of pertinent information;

4.2.2.

the technical requirements relating to malfunction indication strategies if the OBD thresholds are exceeded or if the OBD system is unable to fulfil the basic OBD monitoring requirements of this Regulation;

4.2.3.

specific modifications to the handling of OBD information to deal independently with vehicle operation on liquid or gaseous fuels;

4.2.4.

the type-approval of gaseous-fuelled vehicles that contain a limited number of minor deficiencies.

4.3. For the purposes of point 4.1.2, where manufacturers use diagnostic and test tools in accordance with ISO 22900-2:2009 regarding Modular Vehicle Communication Interface (MVCI) and ISO 22901-2:2011 on Open Diagnostic Data Exchange (ODX) in their franchised networks, the ODX files shall be accessible to independent operators via the manufacturer’s website. U.K.

[F4 4.4. Point 4.1.2 shall apply from 1.7.2021 . U.K.

However, manufacturers of vehicles of R- and S-category that do not employ diagnostic tools or a physical or wireless communication with the on-board electronic control unit(s) for the purposes of diagnostics or reprogramming of their vehicles are exempted from the obligations set out in point 4.1.2.]

5. Multi-stage type-approval U.K.

5.1. In the case of multi-stage type-approval, as defined in Article 20 of Regulation (EU) No 167/2013, the final manufacturer shall be responsible for providing access to vehicle OBD and vehicle repair and maintenance information regarding its own manufacturing stage(s) and the link to the previous stage(s). U.K.

5.2. In addition, the final manufacturer shall on its website provide independent operators with the following information: U.K.

5.2.1.

website address of the manufacturer(s) responsible for the previous stage(s);

5.2.2.

name and address of all the manufacturers responsible for the previous stage(s);

5.2.3.

type-approval number(s) of the previous stage(s);

5.2.4.

the engine number.

5.3. Manufacturers responsible for a particular stage or stages of type-approval shall be responsible for providing through their website access to vehicle OBD and vehicle repair and maintenance information regarding the stage(s) of type-approval for which they are responsible and the link to the previous stage(s). U.K.

5.4. The manufacturer responsible for a particular stage or stages of type-approval shall provide the following information to the manufacturer responsible for the next stage: U.K.

5.4.1.

the Certificate of Conformity relating to the stage(s) for which it is responsible;

5.4.2.

the Certificate on Access to Vehicle OBD and Vehicle Repair and Maintenance Information, including its appendices;

5.4.3.

the type-approval number corresponding to the stage(s) for which it is responsible;

5.4.4.

the documents referred to in points 5.4.1, 5.4.2 and 5.4.3 as provided by the manufacturer(s) involved in the previous stage(s).

5.5. Each manufacturer shall authorise the manufacturer responsible for the next stage to pass the documents to the manufacturers responsible for subsequent and final stages. U.K.

5.6. In addition, on a contractual basis, the manufacturer responsible for a particular stage or stages of type-approval shall: U.K.

5.6.1.

provide the manufacturer responsible for the next stage with access to OBD and repair and maintenance information and interface information corresponding to the particular stage(s) for which it is responsible;

5.6.2.

provide, at the request of a manufacturer responsible for a subsequent stage of type-approval, with access to vehicle OBD and vehicle repair and maintenance information and interface information corresponding to the particular stage(s) for which he is responsible.

5.7. A manufacturer, including a final manufacturer, may charge fees in accordance with Article 55 of Regulation (EU) No 167/2013 only in respect of the particular stage(s) for which he is responsible. U.K.

5.8. A manufacturer, including a final manufacturer, shall not charge fees for providing information relating to the website address or contact details of any other manufacturer. U.K.

6. Small volume manufacturers U.K.

6.1. Manufacturers shall provide access to repair and maintenance information in a readily accessible and prompt manner, and in a manner which is non-discriminatory as compared with the provisions given or access granted to authorised dealers and repairers in accordance with Article 53(13) of Regulation (EU) No 167/2013, if their annual worldwide production of a type of vehicle covered by that regulation is less than: U.K.

(a)

for T-category: 200 vehicles;

(b)

for C-category: 80 vehicles;

(c)

for R-category: 400 vehicles;

(d)

for S-category: 200 vehicles.

For a type of system, component or separate technical unit covered by that Regulation, the relevant figure in the meaning of this provision is 250 units.

[F3 6.2. Vehicles, systems, components and separate technical units covered by point 6.1 shall be listed on the manufacturer’s repair and maintenance information website.] U.K.

6.3. The approval authority shall inform the Commission of all type-approvals granted to small-volume manufacturers. U.K.

7. Compliance with the obligations regarding access to vehicle OBD and vehicle repair and maintenance information U.K.

7.1. An approval authority may, at any time, on their own initiative, or on the basis of a complaint or of an assessment by a technical service, check a manufacturer’s compliance with its obligations under Regulation (EU) No 167/2013, this Regulation and the terms of the Certificate on Access to Vehicle OBD and Vehicle Repair and Maintenance Information. U.K.

7.2. Where an approval authority finds that a manufacturer has failed to comply with its obligations regarding access to vehicle OBD and vehicle repair and maintenance information, the approval authority which granted the relevant type-approval shall take appropriate measures to remedy the situation. U.K.

7.3. Such measures may include withdrawal or suspension of type-approval, fines or other measures adopted in accordance with Regulation (EU) No 167/2013. U.K.

7.4. If an independent operator or a trade association representing independent operators files a complaint to the approval authority, the authority shall carry out an audit to verify the manufacturer’s compliance with obligations concerning access to vehicle OBD and vehicle repair and maintenance information. U.K.

7.5. When carrying out the audit, the approval authority may ask a technical service or any other independent expert to carry out an assessment to verify whether these obligations are met. U.K.

7.6. If the vehicle OBD and vehicle repair and maintenance information is not available when the application for type-approval is made, the manufacturer shall provide that information within six months of the date of type-approval. U.K.

7.7. Where the vehicle is placed on the market more than six months after type-approval, the information shall be provided on the date on which the vehicle is placed on the market. U.K.

7.8. The approval authority may presume on the basis of a completed Certificate on Access to Vehicle OBD and Vehicle Repair and Maintenance Information that the manufacturer has put in place satisfactory arrangements and procedures with regard to access to vehicle OBD and vehicle repair and maintenance information, provided that no complaint was made and that the manufacturer provides the certificate within the periods referred to in paragraph 7.7. U.K.

7.9. If the certificate of compliance is not provided within that period, the approval authority shall take appropriate measures to ensure compliance. U.K.

8. Information requirements for granting access to independent operators to non-secure areas U.K.

8.1. For access to any OBD and repair and maintenance information other than that relating to secure areas of the vehicle, registration requirements for use of the manufacturer’s website by an independent operator shall require only such information as is necessary to confirm how payment for the information is to be made. U.K.

9. Information requirements for granting access to independent operators to secure areas U.K.

9.1. For access to any OBD and repair and maintenance information concerning access to secure areas of the vehicle, the independent operator shall be approved and authorised for this purpose on the basis of documents demonstrating that it pursues a legitimate business activity and has not been convicted of relevant criminal activity. U.K.

9.2. Independent operators shall be given access to vehicle security features used by authorised dealers and repair shops under protection of security technology concerning the exchange of data to ensure confidentiality, integrity and protection against replay. U.K.

9.3. The Forum on Access to Vehicle Information provided for by Article 56 of Regulation (EU) No 167/2013 will specify state-of-the-art parameters for fulfilling these requirements. U.K.

9.4. For information concerning access to secure areas of the vehicle, the independent operator shall present a certificate in accordance with ISO 20828:2006 to identify itself and the organisation to which it belongs. The manufacturer shall respond with its own certificate in accordance with ISO 20828:2006 to confirm to the independent operator that it is accessing a legitimate site of the manufacturer in question. Both parties shall keep a log of any such transactions indicating the vehicles and changes made to them under this provision. U.K.

Appendix 1

Access to vehicle OBD and vehicle repair and maintenance information U.K.

1. Introduction U.K.

1.1. This Appendix lays down technical requirements for the accessibility of vehicle OBD and vehicle repair and maintenance information. U.K.

2. Requirements U.K.

2.1. The manufacturer shall provide vehicle repair and maintenance information using only open text and graphic formats or formats which can be viewed and printed using only standard software plug-ins that are freely available, easy to install, and which run with computer operating systems commonly in use. U.K.

2.1.1. Vehicle OBD and vehicle repair and maintenance information available through websites shall follow the common standard referred to in Article 53(2) of Regulation (EU) No 167/2013. U.K.

2.1.2. Where possible, keywords in the metadata shall conform to ISO 15031-2:2010. Such information shall be always available, except as required for website maintenance purposes. U.K.

2.1.3. Those requiring the right to duplicate or re-publish the information should negotiate directly with the manufacturer concerned. U.K.

2.1.4. Information for training material shall also be available, but may be presented through media other than websites. U.K.

2.2. Information on all parts of the vehicle, with which the vehicle, as identified by the model and serial number, or by VIN number of the vehicle and any additional criteria such as wheelbase, engine output, trim level or options, is equipped by the vehicle manufacturer and which can be replaced by spare parts offered by the vehicle manufacturer to its authorised repairers or dealers or third parties by means of reference to original equipment (OE) parts numbers, shall be made available in a database easily accessible to independent operators. U.K.

2.3. This database or alternative accessible format shall comprise the VIN, OE parts numbers, OE naming of the parts, validity attributes (valid-from and valid-to dates), fitting attributes and, where applicable, structuring characteristics. U.K.

2.4. The information on the database or available in another accessible format shall be regularly updated. In particular, the updates shall include all modifications to individual vehicles after their production if this information is available to authorised dealers. U.K.

[F3 2.5. Reprogramming and diagnostics of control units for the purposes of recalibration after a repair or loading software to a replacement ECU or recoding or reinitialising replacement parts or components, must allow the use of non-proprietary hardware. U.K.

2.5.1. Reprogramming and diagnostics (PC-VCI communication interface) shall be conducted in accordance with either ISO 22900-2, SAE J2534 or TMC RP1210 from 1.7.2021 ; U.K.

However, the first paragraph shall apply from 1.7.2023 to the following manufacturers:

(a)

manufacturers of vehicles of R- and S-category;

(b)

manufacturers of vehicles of T- and C-category whose production is below the limits set out in point 6.1 of this Annex;

(c)

manufacturers of systems, components or separate technical units whose production is below the limits set out in point 6.1 of this Annex.

2.5.2. Ethernet, serial cable or Local Area Network (LAN) interface and alternative media like Compact Disc (CD), Digital Versatile Disc (DVD) or solid state memory device may also be used, but on the condition that no proprietary communication software (e.g. drivers or plug-ins) and hardware is required. For the validation of the compatibility of the manufacturer-specific application and the vehicle communication interfaces (VCI) complying to ISO 22900-2, SAE J2534 or TMC RP1210, the manufacturer shall offer either a validation of independently developed VCIs or the information, and loan of any special hardware, required for a VCI manufacturer to conduct such validation himself. The conditions set out in Article 55 of Regulation (EU) No 167/2013 shall apply to fees for such validation or information and hardware. U.K.

2.5.3. Co-existence of vehicle manufacturers’ software shall be ensured from 1.7.2021 ; U.K.

However, the first paragraph shall apply from 1.7.2023 to the following manufacturers:

(a)

manufacturers of vehicles of R- and S-category;

(b)

manufacturers of vehicles of T- and C-category whose production is below the limits set out in point 6.1 of this Annex;

(c)

manufacturers of systems, components or separate technical units whose production is below the limits set out in point 6.1 of this Annex.

2.5.4. To ensure communication between the vehicle and diagnostic tools, the following standards shall apply for the physical diagnostic connectors between VCI and vehicle: SAE J1939-13, ISO 11783-2, ISO 15031-3 and ISO 13400-4.] U.K.

2.5.5. When a manufacturer recommends a combination of a type of tractor with a type of R or S category vehicle or vice versa, he shall provide the vehicle OBD and vehicle repair and maintenance information related to the interconnectivity of both vehicles to independent operators. This information may also be provided through a website set up jointly by several manufacturers or a consortium of manufacturers if this website is compliant with the provisions of this Regulation, as indicated by recital 23 to Regulation (EU) No 167/2013. U.K.

2.6. Manufacturers’ repair information websites shall indicate type-approval numbers by model. U.K.

2.7. Manufacturers shall establish reasonable and proportionate fees for hourly, daily, monthly, annual and if applicable per-transaction access to their repair and maintenance information websites. U.K.

Appendix 2

Information to enable the development of generic diagnostic tools U.K.

1. Information required for the manufacture of diagnostic tools U.K.

In order to facilitate the provision of generic diagnostic tools for multi-make repairers, vehicle manufacturers shall make available the information referred to in points 1.1, 1.2 and 1.3 through their repair information websites. That information shall include all diagnostic tool functions and all the links to repair information and troubleshooting instructions. The access to the information may be subject to the payment of a reasonable fee.

1.1. Communication protocol information U.K.

The following information shall be required indexed against vehicle make, model and variant, or other workable definition such as VIN or vehicle and systems identification:

(a)

Any additional protocol information system necessary to enable complete diagnostics in addition to the standards prescribed in point 4.7.3 of Annex 9B to UNECE Regulation No 49, including any additional hardware or software protocol information, parameter identification, transfer functions, ‘keep alive’ requirements, or error conditions;

(b)

Details of how to obtain and interpret all fault codes which are not in accordance with the standards prescribed in point 4.7.3 of Annex 9B to UNECE Regulation No 49;

(c)

A list of all available live data parameters, including scaling and access information;

(d)

A list of all available functional tests, including device activation or control and the means to implement them;

(e)

Details of how to obtain all component and status information, time stamps, pending DTC and freeze frames,

(f)

Resetting adaptive learning parameters, variant coding and replacement component setup, and customer preferences,

(g)

ECU identification and variant coding,

(h)

Details of how to reset service lights;

(i)

Location of diagnostic connector and connector details;

(j)

Engine code identification.

1.2. Test and diagnosis of OBD monitored components U.K.

The following information shall be required:

(a)

A description of tests to confirm its functionality, at the component or in the harness;

(b)

Test procedure including test parameters and component information;

(c)

Connection details including minimum and maximum input and output and driving and loading values;

(d)

Values expected under certain driving conditions including idling;

(e)

Electrical values for the component in its static and dynamic states;

(f)

Failure mode values for each of the above scenarios;

(g)

Failure mode diagnostic sequences including fault trees and guided diagnostics elimination;

1.3. Data required to perform the repair U.K.

The following information shall be required:

(a)

ECU and component initialisation (in the event of replacements being fitted);

(b)

Initialisation of new or replacement ECU’s where relevant using pass-through (re-) programming techniques.

ANNEX VI

Requirements applying to roll-over protection structures (dynamic testing) U.K.

A. GENERAL PROVISION U.K.

1. The Union requirements applying to roll-over protection structures (dynamic testing) are set out in point B. U.K.

B. REQUIREMENTS APPLYING TO ROLL-OVER PROTECTION STRUCTURES (DYNAMIC TESTING)(8) U.K.

1. Definitions U.K.

1.1. [Not applicable] U.K.

1.2. Rolling Over Protective Structure (ROPS) U.K.

Roll-over protective structure (protective cab or frame), hereinafter called ‘protective structure’, means the structure on a tractor the essential purpose of which is to avoid or limit risks to the driver resulting from roll-over of the tractor during normal use.

The roll-over protective structure is characterized by the provision of space for a clearance zone large enough to protect the driver when seated either inside the envelope of the structure or within a space bounded by a series of straight lines from the outer edges of the structure to any part of the tractor that might come into contact with flat ground and that is capable of supporting the tractor in that position if the tractor overturns.

1.3. Track U.K.

1.3.1. Preliminary definition: median plane of the wheel U.K.

The median plane of the wheel is equidistant from the two planes containing the periphery of the rims at their outer edges.

1.3.2. Definition of track U.K.

The vertical plane through the wheel axis intersects its median plane along a straight line which meets the supporting surface at one point. If A and B are the two points thus defined for the wheels on the same axle of the tractor, then the track width is the distance between points A and B. The track may be thus defined for both front and rear wheels. Where there are twin wheels, the track is the distance between two planes each being the median plane of the pairs of wheels.

For track-laying tractors, the track is the distance between the median planes of the tracks.

1.3.3. Additional definition: median plane of the tractor U.K.

Take the extreme positions of points A and B for the tractor rear axle, which gives the maximum possible value for the track. The vertical plane at right angles to the line AB at its centre point is the median plane of the tractor.

1.4. Wheelbase U.K.

The distance between the vertical planes passing through the two lines AB as defined above, one for the front wheels and one for the rear-wheels.

1.5. Determination of seat index point; Seat location and adjustment for test U.K.

1.5.1. Seat Index Point (SIP)(9) U.K.

The seat index point shall be determined in accordance with ISO 5353:1995.

1.5.2. Seat location and adjustment for test U.K.

1.5.2.1. Where the inclination of the backrest and seat pan is adjustable, these must be adjusted so that the Seat Index Point is in its rear uppermost position; U.K.

1.5.2.2. Where the seat is equipped with suspension, the latter must be blocked at mid-travel, unless this is contrary to the instructions clearly laid down by the seat manufacturer; U.K.

1.5.2.3. Where the position of the seat is adjustable only lengthwise and vertically, the longitudinal axis passing through the Seat Index Point shall be parallel with the vertical longitudinal plane of the tractor passing through the centre of the steering wheel and not more than 100 mm from that plane. U.K.

1.6. Clearance zone U.K.

1.6.1. Reference plane U.K.

The clearance zone is illustrated in Figures 3.8 to 3.10 and Table 3.3. The zone is defined in relation to the reference plane and the Seat Index Point. The reference plane is a vertical plane, generally longitudinal to the tractor and passing through the Seat Index Point and the centre of the steering wheel. Normally the reference plane coincides with the longitudinal median plane of the tractor. This reference plane shall be assumed to move horizontally with the seat and steering wheel during loading but to remain perpendicular to the tractor or the floor of the roll-over protective structure. The clearance zone shall be defined on the basis of sub clauses 1.6.2 and 1.6.3.

1.6.2. Determination of clearance zone for tractors with a non-reversible seat U.K.

The clearance zone for tractors with a non-reversible seat is defined in 1.6.2.1 to 1.6.2.10 below and is bounded by the following planes, the tractor being on a horizontal surface, the seat, where adjustable, adjusted to its rear uppermost position(9), and the steering wheel, where adjustable, adjusted to the mid position for seated driving:

1.6.2.1.

a horizontal plane A1 B1 B2 A2, (810 + av) mm above the seat index point (SIP) with line B1B2 located (ah – 10) mm behind the SIP;

1.6.2.2.

an inclined plane G1 G2 I2 I1, perpendicular to the reference plane, including both a point 150 mm behind line B1B2 and the rearmost point of the seat backrest;

1.6.2.3.

a cylindrical surface A1 A2 I2 I1 perpendicular to the reference plane, having a radius of 120 mm, tangential to the planes defined in 1.6.2.1 and 1.6.2.2 above;

1.6.2.4.

a cylindrical surface B1 C1 C2 B2, perpendicular to the reference plane, having a radius of 900 mm extending forward for 400 mm and tangential to the plane defined in 1.6.2.1 above along line B1B2;

1.6.2.5.

an inclined plane C1 D1 D2 C2, perpendicular to the reference plane, joining the surface defined in 1.6.2.4 above and passing 40 mm from the forward external edge of the steering wheel. In the case of a high steering wheel position, this plane extends forward from line B1B2 tangentially to the surface defined in 1.6.2.4 above;

1.6.2.6.

a vertical plane D1 E1 E2 D2 perpendicular to the reference plane 40 mm forward of the external edge of the steering wheel;

1.6.2.7.

a horizontal plane E1 F1 F2 E2 passing through a point (90 – av) mm below the seat index point (SIP);

1.6.2.8.

a surface G1 F1 F2 G2, if necessary curved from the bottom limit of the plane defined in 1.6.2.2 above to the horizontal plane defined in 1.6.2.7 above, perpendicular to the reference plane, and in contact with the seat backrest throughout its length;

1.6.2.9.

vertical planes J1 E1 F1 G1 H1 and J2 E2 F2 G2 H2. These vertical planes shall extend upwards from plane E1 F1 F2 E2 for 300 mm; the distances E1 E0 and E2 E0 shall be 250 mm;

1.6.2.10.

parallel planes A1 B1 C1 D1 J1 H1 I1 and A2 B2 C2 D2 J2 H2 I2 inclined so that the upper edge of the plane on the side on which the force is applied is at least 100 mm from the vertical reference plane.

1.6.3. Determination of clearance zone for tractors with a reversible driver’s position U.K.

For tractors with a reversible driver’s position (reversible seat and steering wheel), the clearance zone is the envelope of the two clearance zones defined by the two different positions of the steering wheel and the seat.

1.6.4. Optional seats U.K.

1.6.4.1. In case of tractors that could be fitted with optional seats, the envelope comprising the seat index points of all options offered shall be used during the tests. The protective structure shall not enter the larger clearance zone which takes account of these different seat index points. U.K.

1.6.4.2. In the case where a new seat option is offered after the test has been performed, a determination shall be made to see whether the clearance zone around the new SIP falls within the envelope previously established. If it does not, a new test must be performed. U.K.

1.6.4.3. Optional seat does not include a seat for a person in addition to the driver and from where the tractor cannot be controlled. The SIP shall not be determined because the definition of the clearance zone is in relation to the driver seat. U.K.

1.7. Unballasted mass U.K.

The mass of the tractor without ballasting devices and, in the case of tractors with pneumatic tyres, without liquid ballast in the tyres. The tractor shall be in running order with tanks, circuits and radiator full, protective structure with cladding and any track equipment or additional front wheel drive components required for normal use. The operator is not included.

1.8. Permissible measurement tolerances U.K.

Distance

± 0,5 mm

Force

± 0,1 % (of the sensor full scale)

Mass

± 0,2 % (of the sensor full scale)

Tyre pressure

± 5,0 %

Angle

± 0,1°

1.9. Symbols U.K.

ah	(mm)	Half of the horizontal seat adjustment
av	(mm)	Half of the vertical seat adjustment
E	(J)	Energy input during test
F	(N)	Static load force
H	(mm)	Height of lift of the centre of gravity of the pendulum block
I	(kg.m2)	Moment of inertia about rear axle, excluding wheels used for calculating rear impact energy
L	(mm)	Wheelbase used for calculating rear impact energy
M	(kg)	Mass used for calculating energy and crushing forces

2. Field of application U.K.

2.1. This Annex is applicable to tractors having at least two axles for pneumatic tyred wheels with or without track attachments and with an unballasted tractor mass greater than 600 kg but generally less than 6 000 kg. U.K.

2.2. The minimum track width of the rear-wheels should generally be greater than 1 150 mm. It is recognised that there may be designs of tractors, for example, lawn mowers, narrow vineyard tractors, low profile tractors used in buildings with limited overhead clearance or in orchards, high-clearance tractors and special forestry machines, such as forwarders and skidders, for which this Annex is not applicable. U.K.

3. Rules and directions U.K.

3.1. General regulations U.K.

3.1.1. The protective structure may be manufactured either by the tractor manufacturer or by an independent firm. In either case a test is only valid for the model of tractor on which it is carried out. The protective structure must be retested for each model of tractor to which it is to be fitted. However, testing stations may certify that the strength tests are also valid for tractor models derived from the original model by modifications to the engine, transmission and steering and front suspension (see below 3.6: Extension to other tractor models). On the other hand, more than one protective structure may be tested for any one model of tractor. U.K.

3.1.2. The protective structure submitted for dynamic test must be supplied attached in the normal manner to the tractor model in connection with which it is being tested. The tractor submitted shall be complete and in running order. U.K.

3.1.3. Where a ‘tandem’ tractor is concerned, the mass of the standard version of that part to which the protective structure is fitted is to be used. U.K.

3.1.4. A protective structure may be designed solely to protect the driver in the event of the tractor overturning. Onto this structure it may be possible to fit weather protection for the driver, of a more or less temporary nature. The driver will usually remove this in warm weather. There are protective structures however, in which the cladding is permanent and warm weather ventilation provided by windows or flaps. As the cladding may add to the strength of the structure and if removable may well be absent when an accident occurs, all parts that can be so taken away by the driver will be removed for the purpose of the test. Doors, roof hatch and windows that can be opened shall be either removed or fixed in the open position for the test, so that they do not add to the strength of the protective structure. It shall be noted whether, in this position, they would create a hazard for the driver in the event of overturning. U.K.

Throughout the remainder of these rules, reference will only be made to testing the protective structure. It must be understood that this includes cladding not of a temporary nature.

A description of any temporary cladding supplied is to be included in the specifications. All glass or similar brittle material shall be removed prior to the test. Tractor and protective structure components which might sustain needless damage during the test and which do not affect the strength of the protective structure or its dimensions may be removed prior to the test if the manufacturer wishes. No repairs or adjustment may be carried out during the test.

3.1.5. Any component of the tractor contributing to the strength of the protective structure such as mud-guards, which has been reinforced by the manufacturer, should be described and its measurements given in the test report. U.K.

3.2. Apparatus and test conditions U.K.

3.2.1. The structure shall be struck by a block acting as a pendulum and submit to a front and a rear crushing test. U.K.

3.2.2. The mass of the pendulum bloc (Figure 3.1) shall be 2 000 kg. Its impact face shall have dimensions 680 × 680 mm ± 20. It shall be made in such a way that the position of its centre of gravity is constant (for example with iron bars bound in concrete). It shall be suspended from a pivot point about 6 m above the floor in such a way that the height of the pendulum may be conveniently and safely adjusted. U.K.

3.2.3. For tractors with less than 50 % of their mass on the front wheels, the first blow shall be at the rear of the structure. This shall be followed by a crushing test also at the rear of the structure. The second blow shall be at the front and the third at the side. Finally, there shall be a second crushing test at the front. U.K.

For tractors with 50 % or more of their mass on the front wheels, the first blow shall be at the front and the second blow at the side. This shall be followed by the two crushing tests, firstly at the rear and secondly at the front.

3.2.4. For tractors with a reversible driver’s position (reversible seat and steering wheel), the first blow shall be longitudinal at the heavier end (with more than 50 % of the mass of the tractor). This shall be followed by a crushing test on the same end. The second blow shall be at the other end, and the third at the side. Finally, there shall be a second crushing test at the lighter end. U.K.

3.2.5. A track width setting for the rear-wheels shall be chosen such that the structure is in no way supported by the tyres during the test. This provision may be disregarded if such support is given when the wheels are in their widest alternative track setting. U.K.

3.2.6. The side of the tractor from which the side blow is struck shall be that which, in the opinion of the testing station, is likely to give the greatest distortion. The rear blow shall be on the corner opposite the side blow and the front blow on the corner nearer the side blow. The rear blow shall be administered at two-thirds the distance from the median plane of the tractor to the vertical plane touching the outside extremity of the structure. However, if a curve in the back of the structure starts at less than two-thirds of the distance from the centre, the blow shall be struck at the beginning of the curve, i.e. at the point where this curve is tangential to a line at right angles to the median plane of the tractor. U.K.

3.2.7. If, during the test, any lashings, props or blocks move or break, the test must be repeated. U.K.

3.3. Impact tests U.K.

3.3.1. Impact at the rear (Figures 3.2.a and 3.2.b) U.K.

3.3.1.1. The rear impact is not required on tractors having 50 % or more of their mass (as defined above) on the front wheels. U.K.

3.3.1.2. The tractor shall be placed in relation to the pendulum so that this will strike the structure when the striking face and the supporting chains are at an angle of 20° to the vertical unless the structure at the point of contact has, during deflection, a greater angle with the vertical. In this case the striking face shall be adjusted parallel to the side of the structure at the point of contact at the moment of maximum deflection by an additional support, the supporting chains remaining at an angle of 20° to the vertical. The point of impact shall be that part of the structure likely to hit the ground first in a rearward overturning accident, normally the upper edge. The height of the pendulum will be so adjusted that it has no tendency to turn about the point of contact. U.K.

3.3.1.3. The tractor will be lashed down. The points of attachment of the lashings shall be approximately 2 m behind the rear axle and 1,5 m in front of the front axle. There shall be two lashings on each axle, one on each side of the median plane of the tractor. The lashings shall be steel cable of 12,5 to 15 mm diameter, tensile strength1 100-1 260 MPa. The tyres of the tractor shall be inflated, and the lashings tightened to give tyre pressures and deflections, as shown in the Table 3.1, below. U.K.

After the lashings have been tightened a wood beam 150 × 150 mm shall be clamped in front of the rear-wheels, driven tight against them.

3.3.1.4. The pendulum shall be pulled back so that the height H of its centre of gravity above that at the point of impact is given by one of the following formulae at the option of the manufacturer: U.K.

or

3.3.1.5. The pendulum shall be released and allowed to crash against the structure. The quick release mechanism must be so positioned that it does not tilt the weight in relation to the chains supporting it at the moment of release. U.K.

Table 3.1

Tyre Pressures

a No water ballast is to be used.
	Tyre pressureskPaa	Deflectionmm
Four-wheel drive tractors with front and rear wheels of the same size:
Front	100	25
Rear	100	25
Four-wheel drive tractors with front wheels smaller than rear wheels:
Front	150	20
Rear	100	25
Two-wheel drive tractors:
Front	200	15
Rear	100	25

3.3.2. Impact at the front (Figures 3.3.a and 3.3.b) U.K.

3.3.2.1. This shall be carried out in the same way as the impact at the rear. The lashings shall be the same but the wooden beam shall be behind the rear-wheels. The height of fall of the centre of gravity of the pendulum shall be given by the following formula: U.K.

3.3.2.2. The point of impact shall be that part of the structure that would hit the ground first when turning over sideways while travelling forward, normally the top of the front corner. U.K.

3.3.3. Impact at the side (Figure 3.4) U.K.

3.3.3.1. The tractor shall be placed in relation to the pendulum so that this will strike the structure when the striking face and the supporting chains are vertical unless the structure at the point of contact is, during deflection, other than vertical. In this case the striking face shall be adjusted so that it is approximately parallel to the structure at the point of contact at the moment of maximum deflection. This adjustment shall be made by an additional support, the supporting chains remaining vertical at the moment of impact. The point of impact shall be that part of the structure likely to hit the ground first in a sideways overturning accident, normally the upper edge. U.K.

3.3.3.2. Unless it is certain that any other part of this edge would hit the ground first, the point of impact shall be in the plane at right angles to the median plane of the tractor and passing 60 mm in front of the seat index point, the seat being at its mid-point of longitudinal adjustment. The height of the pendulum will be so adjusted that it has no tendency to turn about the point of contact. U.K.

3.3.3.3. For tractors with a reversible driver’s position, the point of impact shall be in the plane at right angles to the median plane of the tractor and at the mid-point between the two seat index points. U.K.

3.3.3.4. The rear-wheel of the tractor on the side to be struck shall be lashed down. The tension in the lashings shall be determined as for the impact at the rear. After lashing, a beam 150 × 150 mm shall be clamped against the side of the rear-wheel opposite the blow, and driven hard against the tyre. A beam shall be placed as a prop against this wheel and secured on the floor so that it is held tight against the wheel during impact. The length of this beam shall be chosen so that when in position against the wheel it makes an angle of 25 to 40° with the horizontal. Furthermore its length shall be 20 to 25 times its thickness and its width 2 to 3 times its thickness. U.K.

3.3.3.5. The pendulum shall be pulled back as in the previous tests so that the height H of its centre of gravity above that at the moment of impact is determined by the following formula: U.K.

3.3.3.6. During the side impact test the difference between the maximum momentary deflection and the permanent deflection at a height of (810 + a_v) mm above the seat index point shall be recorded. This may be done with a device on which a moving friction collar shall be fitted on a horizontal rod. One end of the rod shall be attached to the top member of the structure and the other will pass through a hole in a vertical bar attached to tractor chassis. The collar will be positioned against the vertical bar attached to tractor chassis before the blow and its distance from it after the blow will give the difference between the maximum momentary deflection and the permanent deflection. U.K.

3.4. Crushing tests U.K.

It may be necessary to hold down the front of the tractor when carrying out the test at the rear. Blocks will be placed under the axles so that the tyres do not bear crushing force. The cross beam used shall have a width of approximately 250 mm and shall be connected to the load applying mechanism by universal joints (Figure 3.5).

3.4.1. Crushing at the rear (Figures 3.6.a and 3.6.b) U.K.

3.4.1.1. The crushing beam shall be positioned across the rear uppermost structural members so that the resultant of the crushing forces is located in the vertical reference plane of the tractor. The crushing force (F) shall be applied where: U.K.

F = 20 M

This force shall be maintained for 5 seconds after cessation of any visually detectable movement of the protective structure.

3.4.1.2. Where the rear part of the protective structure roof will not sustain the full crushing force (Figures 3.7.a and 3.7.b), the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the rear of the tractor capable of supporting the tractor when overturned. U.K.

The force shall then be removed and the crushing beam repositioned over that part of the protective structure that would support the tractor when completely overturned. The crushing force F shall be applied.

3.4.2. Crushing at the front (Figures 3.6.a and 3.6.b) U.K.

3.4.2.1. The crushing beam shall be positioned across the front uppermost structural members so that the resultant of the crushing forces is located in the vertical reference plane of the tractor. The crushing force (F) shall be applied where: U.K.

F = 20 M

This force shall be maintained for 5 seconds after cessation of any visually detectable movement of the protective structure.

3.4.2.2. When the front part of the roof of the protective structure will not sustain the full crushing force (Figures 3.7.a and 3.7.b), the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the front of the tractor capable of supporting the tractor when overturned. U.K.

The force shall then be removed and the crushing beam repositioned over that part of the protective structure that would support the tractor when completely overturned. The crushing force F shall then be applied.

3.5. Conditions for acceptance U.K.

3.5.1. The structure and tractor shall be visually examined for cracks and tears after each part of the test. For the structure to pass the test the following conditions shall be complied with: U.K.

3.5.1.1.

there shall be no cracks in structural members, mounting components or tractor parts contributing to the strength of the protective structure (except as covered by 3.5.1.3 below);

3.5.1.2.

there shall be no cracks in welds contributing to the strength of the protective structure or its mounting components. Spot or tack welding used for the attachment of cladding panels shall normally be excluded from this condition;

3.5.1.3.

energy-absorbing tears in sheet metal structures are acceptable, providing that they are judged by the testing station to have not significantly reduced the resistance to deflection of the protective structure. Tears in sheet metal components caused by edges of the pendulum weight shall be ignored;

3.5.1.4.

the required force must be sustained in both crushing tests;

3.5.1.5.

the difference between the maximum momentary deflection and the permanent deflection in the side impact test must not exceed 250 mm (Figure 3.11);

3.5.1.6.

no part shall enter the clearance zone during any part of the tests. No part may strike the seat during the tests. Furthermore, the clearance zone shall not be outside the protection of the protective structure. For this purpose, it shall be considered to be outside the protection of the structure if any part of it would come in contact with flat ground if the tractor overturned towards the direction from which the test load is applied. For estimating this, the tyres and track width setting shall be the smallest standard fitting specified by the manufacturer.

3.5.1.7.

for the articulated tractors, the median planes of the two parts shall be assumed to be in line.

3.5.2. After the final crushing test, the permanent deformation of the protective structure shall be recorded. For this purpose, before the start of the test, the position of the main members in relation to the seat index point must be recorded. Then any movement of the members struck in the tests and any change of the height of the front and back members of the roof shall be recorded. U.K.

3.6. Extension to other tractor models U.K.

3.6.1. [Not applicable] U.K.

3.6.2. Technical extension U.K.

When technical modifications occur on the tractor, the protective structure or the method of attachment of the protective structure to the tractor, the testing station that has carried out the original test can issue a ‘technical extension report’ in the following cases:

3.6.2.1. Extension of the structural test results to other models of tractors U.K.

The impact and crushing tests need not be carried out on each model of tractor, provided that the protective structure and tractor comply with the conditions referred to hereunder 3.6.2.1.1 to 3.6.2.1.5.

3.6.2.1.1. The structure shall be identical to the one tested; U.K.

3.6.2.1.2. The required energy shall not exceed the energy calculated for the original test by more than 5 %. The 5 % limit shall also apply to extensions in the case of substituting tracks for wheels on the same tractor; U.K.

3.6.2.1.3. The method of attachment and the tractor components to which the attachment is made shall be identical; U.K.

3.6.2.1.4. Any components such as mud-guards and bonnet that may provide support for the protective structure shall be identical; U.K.

3.6.2.1.5. The position and critical dimensions of the seat in the protective structure and the relative position of the protective structure on the tractor shall be such that the clearance zone would have remained within the protection of the deflected structure throughout all tests (this shall be checked by using the same reference of clearance zone as in the original test report, respectively Seat Reference Point [SRP] or Seat Index Point [SIP]). U.K.

3.6.2.2. Extension of the structural test results to modified models of the protective structure U.K.

This procedure has to be followed when the provisions of paragraph 3.6.2.1 are not fulfilled, it may not be used when the method of attachment of the protective structure to the tractor does not remain of the same principle (e.g. rubber supports replaced by a suspension device):

3.6.2.2.1.

Modifications having no impact on the results of the initial test (e.g. weld attachment of the mounting plate of an accessory in a non-critical location on the structure), addition of seats with different SIP location in the protective structure (subject to checking that the new clearance zone(s) remain(s) within the protection of the deflected structure throughout all tests);

3.6.2.2.2.

Modifications having a possible impact on the results of the original test without calling into question the acceptability of the protective structure (e.g. modification of a structural component, modification of the method of attachment of the protective structure to the tractor). A validation test can be carried out and the test results will be drafted in the extension report.

The following limits for this type extension are fixed:

3.6.2.2.2.1.

No more than 5 extensions may be accepted without a validation test;

3.6.2.2.2.2.

The results of the validation test will be accepted for extension if all the acceptance conditions of this Annex are fulfilled and if the deflection measured after each impact test does not deviate from the deflection measured after each impact test in the original test report by more than ± 7 %;

3.6.2.2.2.3.

More than one protective structure modifications may be included in a single extension report if they represent different options of the same protective structure, but only one validation test can be accepted in a single extension report. The options not tested shall be described in a specific section of the extension report.

3.6.2.2.3.

Increase of the reference mass declared by the manufacturer for a protective structure already tested. If the manufacturer wants to keep the same approval number it is possible to issue an extension report after having carried out a validation test (the limits of ± 7 % specified in 3.6.2.2.2.2 are not applicable in such a case).

3.7. [Not applicable] U.K.

3.8. Cold weather performance of protective structures U.K.

3.8.1. If the protective structure is claimed to have properties resistant to cold weather embrittlement, the manufacturer shall give details that shall be included in the report. U.K.

3.8.2. [F1 When applicable, cold weather embrittlement properties shall be verified either in accordance with the requirements in points 3.8.2.1. to 3.8.2.7., or with the requirements in point 3.8.3.] U.K.

Table 3.2

Minimum Charpy V-notch impact energies

a Indicates preferred size. Specimen size shall be no less than largest preferred size that the material permits.
b The energy requirement at – 20 °C is 2,5 times the value specified for – 30 °C. Other factors affect impact energy strength, i.e. direction of rolling, yield strength, grain orientation and welding. These factors shall be considered when selecting and using steel.
Specimen size	Energy at	Energy at
	– 30 °C	– 20 °C
mm	J	Jb
10 × 10a	11	27,5
10 × 9	10	25
10 × 8	9,5	24
10 × 7,5a	9,5	24
10 × 7	9	22,5
10 × 6,7	8,5	21
10 × 6	8	20
10 × 5a	7,5	19
10 × 4	7	17,5
10 × 3,5	6	15
10 × 3	6	15
10 × 2,5a	5,5	14

3.8.2.1. Bolts and nuts used to attach the protective structure to the tractor and used to connect structural parts of the protective structure shall exhibit suitable controlled reduced temperature toughness properties. U.K.

3.8.2.2. All welding electrodes used in the fabrication of structural members and mounts shall be compatible with the protective structure material as given in 3.8.2.3 below. U.K.

3.8.2.3. Steel materials for structural members of the protective structure shall be of controlled toughness material exhibiting minimum Charpy V-Notch impact energy requirements as shown in Table 3.2. Steel grade and quality shall be specified in accordance with ISO 630:1995; Amd1:2003. U.K.

Steel with an as-rolled thickness less than 2,5 mm and with a carbon content less than 0,2 % is considered to meet this requirement. Structural members of the protective structure made from materials other than steel shall have equivalent low temperature impact resistance.

3.8.2.4. When testing the Charpy V-Notch impact energy requirements, the specimen size shall be no less than the largest of the sizes stated in Table 3.2 that the material will permit. U.K.

3.8.2.5. The Charpy V-Notch tests shall be made in accordance with the procedure in ASTM A 370-1979, except for specimen sizes that shall be in accordance with the dimensions given in Table 3.2. U.K.

3.8.2.6. Alternatives to this procedure are the use of killed or semi-killed steel for which an adequate specification shall be provided. Steel grade and quality shall be specified in accordance with ISO 630:1995; Amd1:2003. U.K.

3.8.2.7. Specimens are to be longitudinal and taken from flat stock, tubular or structural sections before forming or welding for use in the protective structure. Specimens from tubular or structural sections are to be taken from the middle of the side of greatest dimension and shall not include welds. U.K.

[F2 3.8.3. Resistance to cold weather embrittlement may be demonstrated by applying the rules and directions of Section 3 of this Point B at a reduced temperature of – 18 °C or colder. Prior to dynamic testing the protective structure and all mounting hardware shall be cooled to – 18 °C or colder.] U.K.

3.9. [Not applicable] U.K.

Figure 3.1

Pendulum block and its suspending chains or wire ropes

(Dimensions in mm)

Figure 3.2 Method of impact from rear U.K.

Figure 3.2.a

Protective cab

Figure 3.2.b

Rear roll bar frame

Figure 3.3 Method of impact from front U.K.

Figure 3.3.a

Protective cab

Figure 3.3.b

Rear roll bar frame

Figure 3.4

Method of impact from side

Figure 3.5

Example of an arrangement for crushing tests

Figure 3.6 Position of beam for front and rear crushing tests U.K.

Figure 3.6.a

Protective cab

Figure 3.6.b

Rear roll bar frame

Figure 3.7 Position of beam for front crushing test when full crushing force not sustained in front U.K.

Figure 3.7.a

Protective cab

Figure 3.7.b

Rear roll bar frame

Table 3.3

Dimensions of the clearance zone

Dimensions	mm	Remarks
A1 A0	100	minimum
B1 B0	100	minimum
F1 F0	250	minimum
F2 F0	250	minimum
G1 G0	250	minimum
G2 G0	250	minimum
H1 H0	250	minimum
H2 H0	250	minimum
J1 J0	250	minimum
J2 J0	250	minimum
E1 E0	250	minimum
E2 E0	250	minimum
D0 E0	300	minimum
J0 E0	300	minimum
A1 A2	500	minimum
B1 B2	500	minimum
C1 C2	500	minimum
D1 D2	500	minimum
I1 I2	500	minimum
F0 G0	—
I0 G0	—	depending on
C0 D0	—	the tractor
E0 F0	—

Figure 3.8

Clearance zone

Note:

for dimensions, see Table 3.3 above;

Figure 3.9 Clearance zone U.K.

Figure 3.9.a Side view section in reference plane	Figure 3.9.b Rear or front view

1

–

Seat index point

2

–

Force

3

–

Vertical reference plane

Figure 3.10 Clearance zone for tractor with reversible seat and steering wheel U.K.

Figure 3.10.a

Protective cab

Figure 3.10.b

Rear roll bar frame

Figure 3.11

Example of apparatus for measuring elastic deflection

Explanatory notes to Annex VI U.K.

ANNEX VII

Requirements applying to roll-over protection structures (track-laying tractors) U.K.

A. GENERAL PROVISION U.K.

1. The Union requirements applying to roll-over protection structures (track-laying tractors) are set out in point B. U.K.

B. REQUIREMENTS APPLYING TO ROLL-OVER PROTECTION STRUCTURES (TRACK-LAYING TRACTORS)⁽¹⁾ U.K.

1. Definitions U.K.

1.1. [Not applicable] U.K.

1.2. Rolling Over Protective Structure (ROPS) U.K.

Roll-over protective structure (protective cab or frame), hereinafter called ‘protective structure’, means the structure on a tractor the essential purpose of which is to avoid or limit risks to the driver resulting from roll-over of the tractor during normal use.

The roll-over protective structure is characterised by the provision of space for a clearance zone large enough to protect the driver when seated either inside the envelope of the structure or within a space bounded by a series of straight lines from the outer edges of the structure to any part of the tractor that might come into contact with flat ground and that is capable of supporting the tractor in that position if the tractor overturns.

1.3. Track U.K.

1.3.1. Preliminary definition: median plane of the track U.K.

The median plane of the track is equidistant from the two planes containing its periphery at their outer edges.

1.3.2. Definition of track width U.K.

Track width is the distance between the median planes of the tracks

1.3.3. Additional definition: median plane of the tractor U.K.

The vertical plane at right angles to the axle at its centre point is the median plane of the tractor.

1.4. Protective structure U.K.

System of structural members arranged on a tractor in such a way as to accomplish its primary purpose of reducing the likelihood of an operator being crushed should his tractor roll-over. Structural members include any sub-frame, bracket, mounting, socket, bolt, pin, suspension or flexible shock absorber used to secure the system to the tractor frame but exclude mounting provisions which are integral with the tractor frame.

1.5. Tractor frame U.K.

The main chassis or main load-bearing member(s) of the tractor which extend(s) over a major part of the tractor and upon which the protective structure is directly mounted.

1.6. Protective structure-tractor frame assembly U.K.

System consisting of the protective structure attached to the tractor frame.

1.7. Bedplate U.K.

A substantially rigid part of the test structure to which the tractor frame is attached for the purpose of the test.

1.8. Seat index point (SIP) U.K.

1.8.1. The seat index point (SIP) is located in the central longitudinal plane of the apparatus for determination when installed in the operator seat. The SIP is fixed with respect to the tractor and does not move with the seat through its range of adjustment and/or oscillation. U.K.

1.8.2. When determining the SIP, the seat shall be adjusted with all fore, aft, vertical and angular seat adjustments placed in their centre position. The suspension systems shall be set so that the seat is at the mid-point of its oscillation range with the weighted apparatus for determination of SIP in place. U.K.

1.8.3. The SIP must be established by means of the apparatus illustrated in Figure 8.1. The apparatus is placed on the seat. A 20 kg mass is added 40 mm in front of the SIP mark on the horizontal section of the apparatus. A horizontal force of about 100 N shall then be applied to the apparatus at the SIP (see F_o in Figure 8.1). Finally, a further 39 kg mass shall be placed 40 mm in front of the SIP mark on the horizontal section of the apparatus. U.K.

1.9. Deflection-limiting volume (DLV) U.K.

That volume, related to the operator, which serves to set limits and deflections permissible when performing laboratory evaluations of the protective structure (Figure 8.2). It is an orthogonal approximation of the dimensions of a large, seated operator.

1.10. Vertical reference plane U.K.

A vertical plane, generally longitudinal to the tractor and passing through the seat index point and the centre of the steering wheel or of the control hand levers. Normally, the vertical reference plane coincides with the median plane of the tractor.

1.11. Lateral simulated ground plane U.K.

Surface on which a tractor, after rolling over, is assumed to come to a standstill with the tractor lying on its side. The simulated ground plane is determined as follows (see 3.5.1.2):

(a)

upper member to which the force is applied;

(b)

outermost point in end view of member as defined in (a) above;

(c)

vertical line through point defined in (b) above;

(d)

vertical plane parallel to vehicle's longitudinal centreline through the line defined in (c) above;

(e)

rotate plane described in (d) above, 15^o away from the DLV about an axis which is perpendicular to the vertical line given in (c) above and also passes through the point described in (b) above; this establishes the simulated ground plane;

The simulated ground plane shall be established on an unloaded protective structure and shall move with the member to which the load is applied.

1.12. Vertical simulated ground plane U.K.

For a machine coming to rest in an upside-down position, the plane is defined by the top cross-member of the protective structure and that front (rear) part of the tractor likely to come in contact with flat ground at the same time as the protective structure and capable of supporting the upside-down tractor. The vertical simulated ground plane moves with the deformed protective structure.

Note: The vertical simulated ground plane applies only to two-post protective structures. U.K.

1.13. Unballasted mass U.K.

The mass of the tractor without ballasting devices. The tractor shall be in running order with tanks, circuits and radiator full, protective structure with cladding and any track equipment or additional front wheel drive components required for normal use. The operator is not included.

1.14. Permissible measurement tolerances U.K.

Time:

± 0,1 s

Distance:

± 0,5 mm

Force:

± 0,1 % (of the sensor full scale)

Angle

± 0,1°

Mass:

± 0,2 % (of the sensor full scale)

1.15. Symbols U.K.

D	(mm)	Deflection of the structure;
F	(N)	Force;
M	(kg)	Maximum tractor mass recommended by the tractor manufacturer. It shall be equal or superior to the unballasted mass as defined in paragraph 1.13;
U	(J)	Energy absorbed by the structure related to the tractor mass.

2. Field of application U.K.

This Annex is applicable to tractors, propelled and steered by endless tracks, having at least two axles with track attachments, and with following features:

2.1.

an unballasted tractor mass not less than 600 kg;

2.2.

the ground clearance not more than 600 mm beneath the lowest point of the front and rear axles.

3. Rules and directions U.K.

3.1. General regulations U.K.

3.1.1. The protective structure may be manufactured either by the tractor manufacturer or by an independent firm. In either case a test is only valid for the model of tractor on which it is carried out. The protective structure must be retested for each model of tractor to which it is to be fitted. However, testing stations may certify that the strength tests are also valid for tractor models derived from the original model by modifications to the engine, transmission and steering and front suspension (see below 3.6: Extension to other tractor models). On the other hand, more than one protective structure may be tested for any one model of tractor. U.K.

3.1.2. The protective structure submitted for test must be supplied attached in the normal manner to the tractor or tractor chassis on which it is used. The tractor chassis shall be complete including attaching brackets and other parts of the tractor that may be affected by loads imposed on the protective structure. U.K.

3.1.3. A protective structure may be designed solely to protect the driver in the event of the tractor overturning. Onto this structure it may be possible to fit weather protective for the driver, of a more or less temporary nature. This will usually be removed by the driver in warm weather. There are protective structures however, in which the cladding is permanent and warm weather ventilation provided by windows or flaps. As the cladding may add to the strength of the structure and if removable may well be absent when an accident occurs, all parts that can be so taken away by the driver will be removed for the purpose of the test. Doors, roof hatch and windows which can be opened shall be either removed or fixed in the open position for the test, so that they do not add to the strength of the protective structure. It shall be noted whether, in this position, they would create a hazard for the driver in the event of overturning. U.K.

Throughout the remainder of these rules, reference will only be made to testing the protective structure. It must be understood that this includes cladding not of a temporary nature.

A description of any temporary cladding supplied is to be included in the specifications. All glass or similar brittle material shall be removed prior to the test. Tractor and protective structure components which might sustain needless damage during the test and which do not affect the strength of the protective structure or its dimensions may be removed prior to the test if the manufacturer wishes. No repairs or adjustment may be carried out during the test.

3.1.4. Any component of the tractor contributing to the strength of the protective structure such as mud-guards, which has been reinforced by the manufacturer, should be described and its measurements given in the test report. U.K.

3.2. Apparatus U.K.

3.2.1. Deflection-limiting volume U.K.

The DLV and its location shall be in accordance with ISO 3164:1995 (see Figure 8.3). The DLV shall be fixed firmly to the same part of the machine to which the operator's seat is secured, and shall remain there during the entire formal test period.

For track-laying tractors with an unballasted mass of less than 5 000 kg, fitted with a two-post front mounted protective structure, the DLV corresponds to Figures 8.4 and 8.5.

3.2.2. Zone of clearance and safeguard plane U.K.

The zone of clearance, as defined in Annex VIII (Definitions Chapter, Section 1.6), must remain covered by the safeguard plane, S, as shown in Figures 8.2 and 8.4. The safeguard plane is defined as an oblique plane, perpendicular to the vertical longitudinal plane of the tractor, forming a tangent at the front with the protective structure and at the back with whichever of the following hard fixtures of the tractor prevents the aforementioned plane S from entering the zone of clearance, via:

• a housing or rigid part of the rear of the tractor,

• the tracks,

• an additional hard structure firmly mounted on the rear of the tractor.

3.2.3. Rear hard fixture test U.K.

If the tractor is fitted with a rigid section, a housing or other hard fixture placed behind the driver’s seat, this fixture shall be regarded as a protective point, in the event of sideways or rear overturning. This hard fixture placed behind the driver’s seat shall be capable of withstanding, without breaking or entering the zone of clearance, a downward force F_i where:

applied perpendicularly to the top of the frame in the central plane of the tractor. The initial angle of application of force shall be 40° calculated from a parallel to the ground as shown in Figure 8.4. The minimum width of this rigid section shall be 500 mm (see Figure 8.5).

In addition, it shall be sufficiently rigid and firmly attached to the rear of the tractor.

3.2.4. Lashings U.K.

Facilities for securing the protective structure-tractor frame assembly to the bedplate, as described above, and for applying the horizontal and vertical loads shall be provided (see Figures 8.6 to 8.9).

3.2.5. Measuring instruments U.K.

The test apparatus shall be equipped with instruments for measuring the force applied to the protective structure and the deflection (deformation) of the structure.

The percentages below are nominal ratings of the accuracy of the instrumentation and shall not be taken to indicate that compensating tests are required.

Measure	Accuracy
Deflection of the protective structure	± 5 % of maximum deflection measured
Force applied to the protective structure	± 5 % of maximum force measured

3.2.6. Arrangements for load application U.K.

Loading arrangements for load application are shown in Figures 8.7, 8.10 to 8.13 (side loading), in Figures 8.8 and 8.9 (vertical loading) and Figure 8.14 (longitudinal loading).

3.3. Test conditions U.K.

3.3.1. The protective structure shall comply with production specifications and shall be fitted to the appropriate tractor model chassis in accordance with the manufacturer's declared method of attachment. U.K.

3.3.2. The protective structure - tractor frame assembly shall be secured to the bedplate so that the members connecting the assembly and the bedplate experience minimal deflection when the protective structure is side loaded. During side loading, the protective structure - tractor frame assembly shall not receive any support from the bedplate, other than that due to the initial attachment. U.K.

3.3.3. The protective structure shall be instrumented with the necessary equipment to obtain the required force-deflection data. U.K.

3.3.4. All tests shall be performed on the same protective structure. No repair or straightening of any protective structure - tractor member shall be carried out during or between the side and vertical loadings. U.K.

3.3.5. For side and longitudinal loading, connection to the bedplate shall be through the main housing or track frames (see Figures 8.6 to 8.8). U.K.

3.3.6. For vertical loading, there is no limitation on securing or supporting the protective structure-tractor frame assembly. U.K.

3.3.7. On completion of all the tests, permanent deflections of the protective structure shall be measured and recorded. U.K.

3.4. Test procedure U.K.

3.4.1. General U.K.

The test procedures shall consist of the operations described in 3.4.2, 3.4.3 and 3.4.4 in the order listed.

3.4.2. Side loading U.K.

3.4.2.1. The force-deflection characteristics shall be determined by side loading the top major longitudinal members of the protective structure. U.K.

For a protective structure having more than two posts, the side loading shall be applied through a load-distribution device having a length not greater than 80 per cent of the top member straight length L between the front and rear posts of the protective structure (see Figures 8.13 to 8.16). The initial loading shall be within the zone that is established by the vertical projection of two planes parallel to the front and rear planes of the DLV and located 80 mm outside of them.

3.4.2.2. For a protective structure with an overhead shield, having a two-post system, the initial loading shall be dictated by the total longitudinal distance between major, upper protective structure members L and the vertical projection of the front and rear planes of the DLV. The force (load) point shall not be within L/3 distance from the posts. U.K.

Should the L/3 point be between the vertical projection of the DLV and the posts, the force (load) point shall be moved away from the post until it enters the vertical projection of the DLV (see Figures 8.13 to 8.16). Any load distribution plate used shall not impede or restrict the rotation of the protective structure around a vertical axis during the loading and shall not distribute the load over a distance greater than 80 per cent of L.

The force shall be applied to the major, upper and longitudinal members except when a post structure is used without the cantilevered overhead shield. For this type of structure, the force shall be applied in line with the upper cross-member.

3.4.2.3. The initial direction of the force shall be horizontal and perpendicular to a vertical plane through the tractor's longitudinal centre-line U.K.

3.4.2.4. As loading continues, the deformations of the protective structure - tractor frame assembly may cause the direction of the force to change; this is permissible. U.K.

3.4.2.5. Should the operator's seat be off the tractor's longitudinal centre-line, the loading shall be against the outermost side nearest the seat. U.K.

3.4.2.6. For on-centre-line seats, if mounting of the protective structure is such that different force-deflection relations are obtained from loading from left or right sides, the side loaded shall be that which will place the most severe requirements on the protective structure - tractor frame assembly. U.K.

3.4.2.7. The rate of deflection (application of load) shall be such that it can be considered static, i.e. less than or equal to 5 mm/s. U.K.

3.4.2.8. At deflection increments no greater than 25 mm at the point of application of the resultant load, the force and deflection shall be recorded and plotted (Figure 8.17). U.K.

3.4.2.9. The loading shall be continued until the protective structure has achieved both the force and energy requirements. The area under the resulting force-deflection curve (Figure 8.17) equals the energy. U.K.

3.4.2.10. The deflection used in calculating energy shall be that of the protective structure along the line of action of the force. The deflection should be measured at the mid-point of the loading. U.K.

3.4.2.11. Any deflection of members used to support load-application devices shall not be included in deflection measurements used for calculation of energy absorption. U.K.

3.4.3. Vertical loading U.K.

3.4.3.1. After removal of the side load, a vertical load shall be applied to the top of the protective structure. U.K.

3.4.3.2. The load shall be applied using a stiff beam with a width of 250 mm. U.K.

3.4.3.3. For structures having more than two posts, the vertical load shall be applied at both the front and the rear U.K.

3.4.3.3.1. Vertical loading at the rear (Figures 8.10, 8.11.a and 8.11.b) U.K.

3.4.3.3.1.1. The crushing beam shall be positioned across the rear uppermost structural members so that the resultant of the crushing forces is located in the vertical reference plane. The crushing force shall be applied and maintained for 5 seconds after cessation of any visually detectable movement of the protective structure. U.K.

3.4.3.3.1.2. Where the rear part of the protective structure roof will not sustain the full crushing force, the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the rear of the tractor capable of supporting the tractor when overturned. The force shall then be removed and the crushing beam repositioned over that part of the protective structure that would support the tractor when completely overturned. The crushing force shall then be applied. U.K.

3.4.3.3.2. Vertical loading at the front (Figures 8.10 to 8.12) U.K.

3.4.3.3.2.1. The crushing beam shall be positioned across the front uppermost structural members so that the resultant of the crushing forces is located in the vertical reference plane. The crushing force F shall be applied and maintained for 5 seconds after cessation of any visually detectable movement of the protective structure. U.K.

3.4.3.3.2.2. Where the front part of the roof of the protective structure will not sustain the full crushing force (Figures 8.12.a and 8.12.b), the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the front of the tractor capable of supporting the tractor when overturned. The force shall then be removed and the crushing beam repositioned over that part of the protective structure that would support the tractor when completely overturned. The crushing force shall then be applied. U.K.

3.4.3.4. For a protective structure having a two-post system, the vertical loading shall be dictated by the total longitudinal distance between major upper protective structure members L and the vertical projection of the front and rear planes of the DLV. The force (load) point shall be at a distance not less than L/3 distance from the posts (see Figure 8.9). U.K.

Should the L/3 point be between the vertical projection of the DLV and the posts, the force (load) point shall be moved away from the post until it enters the vertical projection of the DLV.

For front-mounted protective structures having a two-post system without an overhead shield, the vertical loading shall be applied in line with the transverse member connecting the upper members.

3.4.4. Longitudinal loading U.K.

3.4.4.1. After removal of the vertical load, a longitudinal load shall be applied to the protection structure. U.K.

3.4.4.2. The longitudinal load shall be applied at the deformed location of the originally established point, since the lateral (and vertical) loading of the protection structure is likely to result in permanent deformation of the structure. The originally established point is determined by the location of the load distributor and socket prior to any test being performed on the structure. U.K.

The load distribution device may span the width in cases where no rear (front) cross-member exists. In all other cases, the device may not distribute the load over a length greater than 80 % of the width, W, of the protection structure (see Figure 8.18).

3.4.4.3. The longitudinal load shall be applied to the upper structural members of the protection structure along the longitudinal centreline of the protection structure. U.K.

3.4.4.4. The direction of loading shall be selected to place the most severe requirements on the protection structure/tractor frame assembly. The initial direction of loading shall be horizontal and parallel to the original longitudinal centreline of the tractor. Some additional factors to consider in deciding on the direction to apply the longitudinal load are: U.K.

(a)

location of protection structure relative to DLV and the effect that longitudinal deflection of the protection structure would have on providing crush protection for the operator;

(b)

tractor characteristics, e.g. other structural members of the tractor which may resist longitudinal deflection of the protection structure, that can limit direction of the longitudinal component of loading on the protection structure;

(c)

experience which may indicate the possibility of longitudinal tipping or the tendency of a particular classification tractor to skew as it rotates about a longitudinal axis during an actual roll-over.

3.4.4.5. The rate of deflection shall be such that the loading may be considered static (see 3.4.2.7). This loading is to continue until the protection structure has achieved the force requirement(s) U.K.

3.5. Conditions for acceptance U.K.

3.5.1. General U.K.

3.5.1.1. During each test, no part of the protective structure shall enter the deflection-limiting volume. Also, the deformation of the protective structure shall not allow the simulated ground plane (defined in paragraphs 1.11 and 1.12) to enter the DLV. U.K.

3.5.1.2. The protective structure deflection during each test shall not cause the load side planes of the DLV to extend beyond or intersect the simulated ground plane (see Figures 8.19 and 8.20). U.K.

The protective structure shall not break away from the tractor frame due to failure of the tractor frame.

3.5.2. Requirements for the side loading force-energy, the vertical loading force and the longitudinal loading force U.K.

3.5.2.1. These requirements shall be met within the deflection(s) permitted in 3.5.1.1. U.K.

3.5.2.2. The side-load force and the minimum energy absorbed shall attain at least those given in Table 8.1, where: U.K.

• F is the minimum force attained during side loading,

• M (kg) is the tractor manufacturer's maximum recommended mass,

• U is the minimum energy absorbed during side loading.

If the required force is attained before the energy requirement is met, the force may decrease but shall again attain the required level when the minimum energy is obtained or exceeded.

3.5.2.3. After removal of the side load, the protective structure-tractor frame assembly shall support a vertical force: U.K.

for a period of 5 min or until any deformation has ceased, whichever is shorter.

3.5.2.4. The longitudinal-load force shall attain at least that given in Table 8.1, where F and M are defined at point 3.5.2.2. U.K.

3.6. Extension to other tractor models U.K.

3.6.1. [Not applicable] U.K.

3.6.2. Technical extension U.K.

When technical modifications occur on the tractor, the protective structure or the method of attachment of the protective structure to the tractor, the testing station that has carried out the original test can issue a ‘technical extension report’ in the following cases:

3.6.2.1. Extension of the structural test results to other models of tractors U.K.

The impact and crushing tests need not be carried out on each model of tractor, provided that the protective structure and tractor comply with the conditions referred to hereunder 3.6.2.1.1 to 3.6.2.1.5.

3.6.2.1.1.

The structure shall be identical to the one tested;

3.6.2.1.2.

The required energy shall not exceed the energy calculated for the original test by more than 5 per cent;

3.6.2.1.3.

The method of attachment and the tractor components to which the attachment is made shall be identical;

3.6.2.1.4.

Any components such as mud-guards and bonnet that may provide support for the protective structure shall be identical;

3.6.2.1.5.

The position and critical dimensions of the seat in the protective structure and the relative position of the protective structure on the tractor shall be such that the DLV would have remained within the protection of the deflected structure throughout all tests.

3.6.2.2. Extension of the structural test results to modified models of the protective structure U.K.

This procedure has to be followed when the provisions of paragraph 3.6.2.1 are not fulfilled, it may not be used when the method of attachment of the protective structure to the tractor does not remain of the same principle (e.g. rubber supports replaced by a suspension device):

3.6.2.2.1.

Modifications having no impact on the results of the initial test (e.g. weld attachment of the mounting plate of an accessory in a non-critical location on the structure), addition of seats with different SIP location in the protective structure (subject to checking that the new DLV(s) remain(s) within the protection of the deflected structure throughout all tests);

3.6.2.2.2.

Modifications having a possible impact on the results of the original test without calling into question the acceptability of the protective structure (e.g. modification of a structural component, modification of the method of attachment of the protective structure to the tractor). A validation test can be carried out and the test results will be drafted in the extension report.

The following limits for this type extension are fixed:

3.6.2.2.2.1.

no more than 5 extensions may be accepted without a validation test;

3.6.2.2.2.2.

the results of the validation test will be accepted for extension if all the acceptance conditions of this Annex are fulfilled and if the force measured when the required energy level has been reached in the various horizontal load tests does not deviate from the force measured when the required energy has been reached in the original test by more than ± 7 % and the deflection measured⁽²⁾ when the required energy level has been reached in the various horizontal load tests does not deviate from the deflection measured when the required energy has been reached in the original test report by more than ± 7 %.

3.6.2.2.2.3.

more than one protective structure modifications may be included in a single extension report if they represent different options of the same protective structure, but only one validation test can be accepted in a single extension report. The options not tested shall be described in a specific section of the extension report

3.6.2.2.3.

Increase of the reference mass declared by the manufacturer for a protective structure already tested. If the manufacturer wants to keep the same approval number it is possible to issue an extension report after having carried out a validation test (the limits of ± 7 % specified in 3.6.2.2.2.2 are not applicable in such a case).

3.7. [Not applicable] U.K.

3.8. Cold weather performance of protective structures U.K.

3.8.1. If the protective structure is claimed to have properties resistant to cold weather embrittlement, the manufacturer shall give details which shall be included in the report. U.K.

3.8.2. The following requirements and procedures are intended to provide strength and resistance to brittle fracture at reduced temperatures. It is suggested that the following minimum material requirements shall be met in judging the protective structure's suitability at reduced operating temperatures in those countries requiring this additional operating protective. U.K.

3.8.2.1. Bolts and nuts used to attach the protective structure to the tractor and used to connect structural parts of the protective structure shall exhibit suitable controlled reduced temperature toughness properties. U.K.

3.8.2.2. All welding electrodes used in the fabrication of structural members and mounts shall be compatible with the protective structure material as given in 3.8.2.3 below U.K.

3.8.2.3. Steel materials for structural members of the protective structure shall be of controlled toughness material exhibiting minimum Charpy V-Notch impact energy requirements as shown in Table 8.2. Steel grade and quality shall be specified in accordance with ISO 630:1995; Amd1:2003. U.K.

Steel with an as-rolled thickness less than 2,5 mm and with a carbon content less than 0,2 per cent is considered to meet this requirement.

Structural members of the protective structure made from materials other than steel shall have equivalent low temperature impact resistance.

3.8.2.4. When testing the Charpy V-Notch impact energy requirements, the specimen size shall be no less than the largest of the sizes stated in Table 8.2 that the material will permit U.K.

3.8.2.5. The Charpy V-Notch tests shall be made in accordance with the procedure in ASTM A 370-1979, except for specimen sizes which shall be in accordance with the dimensions given in table 8.2. U.K.

3.8.2.6. Alternatives to this procedure are the use of killed or semi-killed steel for which an adequate specification shall be provided. Steel grade and quality shall be specified in accordance with ISO 630:1995; Amd1:2003 U.K.

3.8.2.7. Specimens are to be longitudinal and taken from flat stock, tubular or structural sections before forming or welding for use in the protective structure. Specimens from tubular or structural sections are to be taken from the middle of the side of greatest dimension and shall not include welds U.K.

Table 8.1

Force and energy equations

Machine mass, M	Lateral load force, F	Lateral load energy, U	Vertical load force, F	Longitudinal load force, F
kg	N	J	N	N
800 < M ≤ 4 630	6 M	13 000 (M/10 000)1,25	20 M	4,8 M
4 630 < M ≤ 59 500	70 000(M/10 000)1,2	13 000 (M/10 000)1,25	20 M	56 000 (M/10 000)1,2
M > 59 500	10 M	2,03 M	20 M	8 M

Table 8.2

Minimum Charpy V-notch impact energies

a Indicates preferred size. Specimen size shall be no less than largest preferred size that the material permits.
b The energy requirement at – 20 °C is 2,5 times the value specified for – 30 °C. Other factors affect impact energy strength, i.e. direction of rolling, yield strength, grain orientation and welding. These factors shall be considered when selecting and using steel.
Specimen size	Energy at	Energy at
	– 30 °C	– 20 °C
mm	J	Jb
10 × 10a	11	27,5
10 × 9	10	25
10 × 8	9,5	24
10 × 7,5a	9,5	24
10 × 7	9	22,5
10 × 6,7	8,5	21
10 × 6	8	20
10 × 5a	7,5	19
10 × 4	7	17,5
10 × 3,5	6	15
10 × 3	6	15
10 × 2,5a	5,5	14

Figure 8.1

Apparatus for determination of seat index point (SIP)

Figure 8.2

Intrusion of vertical simulated ground plane into DLV

Figure 8.3

Deflection-limiting volume (DLV)

Figure 8.4

Two-post front-mounted protective structure, side view

Deflection-limiting volume (DLV)

Figure 8.5

Two-post front-mounted protective structure, rear view

Deflection-limiting volume (DLV)

Figure 8.6

Typical arrangement for fastening the protective structure to the tractor frame

Figure 8.7

Typical arrangement for protective structure side loading

Figure 8.8

Typical arrangement for fixing the tractor frame and applying vertical load

Figure 8.9

Typical arrangement for applying vertical load to the protective structure

Figure 8.10

Example of an arrangement for crushing test

Figures 8.11 Position of beam for front and rear crushing tests, protective cab and rear roll bar frame U.K.

Figure 8.11.a

Protective cab

Figure 8.11.b

Rear roll bar frame

Figures 8.12 Position of beam for front crushing test when full crushing force not sustained in front U.K.

Figure 8.12.a

Protective cab

Figure 8.12.b

Rear roll bar frame

Figures 8.13 and 8.14 Structure with four-post system Load-distribution devices, side loading U.K.

Figure 8.15

Structure with more than a four-post system

Load-distribution device, side loading

Figure 8.16

Structure with two-post system

Load-distribution device, side loading

Figure 8.17

Force-deflection curve for loading tests

Figure 8.18

Longitudinal load application point

Figure 8.19

Deflection-limiting volume (DLV) application - determination of the lateral simulated ground plane (SGP)

Note: See paragraph 1.11 for the meaning of a to e. U.K.

Figure 8.20

Allowable rotation of upper DLV about locating axis (LA)

Explanatory notes to Annex VII U.K.

^{[F1 (1)} Unless otherwise stated, the text of the requirements and the numbering set out in point B are identical with the text and numbering of the OECD standard Code for the official testing of protective structures on agricultural and forestry track-laying tractors, OECD standard Code 8, Edition 2017 of February 2017.] U.K.

⁽²⁾ Permanent + elastic deflection measured at the point when the required energy level is obtained. U.K.

ANNEX VIII

Requirements applying to roll-over protection structures (static testing) U.K.

A. GENERAL PROVISION U.K.

1. The Union requirements applying to roll-over protection structures (static testing) are set out in point B. U.K.

B. REQUIREMENTS APPLYING TO ROLL-OVER PROTECTION STRUCTURES (STATIC TESTING)⁽¹⁾ U.K.

1. Definitions U.K.

1.1. [Not applicable] U.K.

1.2. Roll-Over Protective Structure (ROPS) U.K.

Roll-over protective structure (protective cab or frame), hereinafter called ‘protective structure’, means the structure on a tractor the essential purpose of which is to avoid or limit risks to the driver resulting from roll-over of the tractor during normal use.

The roll-over protective structure is characterised by the provision of space for a clearance zone large enough to protect the driver when seated either inside the envelope of the structure or within a space bounded by a series of straight lines from the outer edges of the structure to any part of the tractor that might come into contact with flat ground and that is capable of supporting the tractor in that position if the tractor overturns.

1.3. Track U.K.

1.3.1. Preliminary definition: median plane of the wheel or track U.K.

The median plane of the wheel or track is equidistant from the two planes containing the periphery of the rims or tracks at their outer edges.

1.3.2. Definition of track U.K.

The vertical plane through the wheel axis intersects its median plane along a straight line which meets the supporting surface at one point. If A and B are the two points thus defined for the wheels on the same axle of the tractor, then the track width is the distance between points A and B. The track may be thus defined for both front and rear wheels. Where there are twin wheels, the track is the distance between two planes each being the median plane of the pairs of wheels.

For track-laying tractors, the track is the distance between the median planes of the tracks.

1.3.3. Additional definition: median plane of the tractor U.K.

Take the extreme positions of points A and B for the tractor rear axle, which gives the maximum possible value for the track. The vertical plane at right angles to the line AB at its centre point is the median plane of the tractor.

1.4. Wheelbase U.K.

The distance between the vertical planes passing through the two lines AB as defined above, one for the front wheels and one for the rear-wheels.

1.5. Determination of seat index point; Seat location and adjustment for test U.K.

1.5.1. Seat index point (SIP)⁽²⁾ U.K.

The seat index point shall be determined in accordance with ISO 5353:1995

1.5.2. Seat location and adjustment for test U.K.

1.5.2.1.

where the seat position is adjustable, the seat must be adjusted to its rear uppermost position;

1.5.2.2.

where the inclination of the backrest is adjustable, it must be adjusted to the mid position;

1.5.2.3.

where the seat is equipped with suspension, the latter must be blocked at mid-travel, unless this is contrary to the instructions clearly laid down by the seat manufacturer;

1.5.2.4.

where the position of the seat is adjustable only lengthwise and vertically, the longitudinal axis passing through the Seat Index Point shall be parallel with the vertical longitudinal plane of the tractor passing through the centre of the steering wheel and not more than 100 mm from that plane.

1.6. Clearance zone U.K.

1.6.1. Reference plane for seat and steering wheel U.K.

The clearance zone is illustrated in figures 4.11 to 4.13 and Table 4.2. The zone is defined in relation to the reference plane and the Seat Index Point. The reference plane is defined at the beginning of the series of loadings; it is a vertical plane, generally longitudinal to the tractor and passing through the Seat Index Point and the centre of the steering wheel. Normally the reference plane coincides with the longitudinal median plane of the tractor. This reference plane shall be assumed to move horizontally with the seat and steering wheel during loading but to remain perpendicular to the tractor or the floor of the roll-over protective structure. The clearance zone shall be defined on the basis of Sections 1.6.2 and 1.6.3 below.

1.6.2. Determination of the clearance zone for tractors with a non-reversible seat U.K.

The clearance zone for tractors with a non-reversible seat is defined in 1.6.2.1 to 1.6.2.10 below and is bounded by the following planes, the tractor being on a horizontal surface, the seat adjusted and located as specified in Sections 1.5.2.1 to 1.5.2.4⁽²⁾, and the steering wheel, where adjustable, adjusted to the mid position for seated driving:

1.6.2.1.

a horizontal plane A₁ B₁ B₂ A₂, (810 + a _v) mm above the Seat Index Point with line B₁B₂ located (a _h – 10) mm behind the SIP;

1.6.2.2.

an inclined plane G₁ G₂ I₂ I₁, perpendicular to the reference plane, including both a point 150 mm behind line B₁B₂ and the rearmost point of the seat backrest;

1.6.2.3.

a cylindrical surface A₁ A₂ I₂ I₁ perpendicular to the reference plane, having a radius of 120 mm, tangential to the planes defined in 1.6.2.1 and 1.6.2.2 above;

1.6.2.4.

a cylindrical surface B₁ C₁ C₂ B₂, perpendicular to the reference plane, having a radius of 900 mm extending forward for 400 mm and tangential to the plane defined in 1.6.2.1 above along line B₁B₂;

1.6.2.5.

an inclined plane C₁ D₁ D₂ C₂, perpendicular to the reference plane, joining the surface defined in 1.6.2.4 above and passing 40 mm from the forward external edge of the steering wheel. In the case of a high steering wheel position, this plane extends forward from line B₁B₂ tangentially to the surface defined in 1.6.2.4 above;

1.6.2.6.

a vertical plane D₁ E₁ E₂ D₂ perpendicular to the reference plane 40 mm forward of the external edge of the steering wheel;

1.6.2.7.

a horizontal plane E₁ F₁ F₂ E₂ passing through a point (90 – a _v) mm below the Seat Index Point;

1.6.2.8.

a surface G₁ F₁ F₂ G₂, if necessary curved from the bottom limit of the plane defined in 1.6.2.2 above to the horizontal plane defined in 1.6.2.7 above, perpendicular to the reference plane, and in contact with the seat backrest throughout its length;

1.6.2.9.

vertical planes J₁ E₁ F₁ G₁ H₁ and J₂ E₂ F₂ G₂ H₂. These vertical planes shall extend upwards from plane E₁ F₁ F₂ E₂ for 300 mm; the distances E₁ E₀ and E₂ E₀ shall be 250 mm;

1.6.2.10.

parallel planes A₁ B₁ C₁ D₁ J₁ H₁ I₁ and A₂ B₂ C₂ D₂ J₂ H₂ I₂ inclined so that the upper edge of the plane on the side on which the force is applied is at least 100 mm from the vertical reference plane.

1.6.3. Determination of clearance zone for tractors with a reversible driver’s position U.K.

For tractors with a reversible driver’s position (reversible seat and steering wheel), the clearance zone is the envelope of the two clearance zones defined by the two different positions of the steering wheel and the seat.

1.6.4. Optional seats U.K.

1.6.4.1. In case of tractors that could be fitted with optional seats, the envelope comprising the Seat Index Points of all options offered shall be used during the tests. The protective structure shall not enter the larger clearance zone which takes account of these different Seat Index Points. U.K.

1.6.4.2. In the case where a new seat option is offered after the test has been performed, a determination shall be made to see whether the clearance zone around the new SIP falls within the envelope previously established. If it does not, a new test must be performed. U.K.

1.6.4.3. Optional seat does not include a seat for a person in addition to the driver and from where the tractor cannot be controlled. The SIP shall not be determined because the definition of the clearance zone is in relation to the driver seat. U.K.

1.7. Mass U.K.

1.7.1. Unballasted Mass U.K.

The mass of the tractor without ballasting devices and, in the case of tractors with pneumatic tyres, without liquid ballast in the tyres. The tractor shall be in running order with tanks, circuits and radiator full, protective structure with cladding and any track equipment or additional front wheel drive components required for normal use. The operator is not included.

1.7.2. Maximum Permissible Mass U.K.

The maximum mass of the tractor stated by the manufacturer to be technically permissible and declared on the vehicle’s identification plate and/or in the Operator’s Handbook;

1.7.3. Reference Mass U.K.

The mass selected by the manufacturer for calculation of the energy inputs and crushing forces to be used in the tests. Must not be less than the unballasted mass and must be sufficient to ensure the Mass Ratio does not exceed 1,75 (see Section 1.7.4).

1.7.4. Mass Ratio U.K.

The ratio of This must not be greater than 1,75.

1.8. Permissible measurement tolerances U.K.

Time

± 0,1 s

Distance

± 0,5 mm

Force

± 0,1 % (of the sensor full scale)

Angle

± 0,1°

Mass

± 0,2 % (of the sensor full scale)

1.9. Symbols U.K.

ah	(mm)	Half of the horizontal seat adjustment
av	(mm)	Half of the vertical seat adjustment
D	(mm)	Deflection of the protective structure at the point of and in line with the load application
D'	(mm)	Deflection of the protective structure for the calculated energy required
EIS	(J)	Energy input to be absorbed during side loading
EIL1	(J)	Energy input to be absorbed during longitudinal loading
EIL2	(J)	Energy input to be absorbed in case of a second longitudinal loading
F	(N)	Static load force
Fmax	(N)	Maximum static load force occurring during loading, with the exception of the overload
F'	(N)	Force for the calculated energy required
M	(kg)	Reference mass used for calculating energy inputs and crushing forces

2. Field of application U.K.

2.1. This Annex is applicable to tractors having at least two axles for pneumatic tyred wheels or having tracks instead of wheels and with an unballasted tractor mass not less than 600 kg. The Mass Ratio (Maximum Permissible Mass / Reference Mass) must not be greater than 1,75. U.K.

2.2. The minimum track width of the rear-wheels should generally be greater than 1 150 mm. It is recognised that there may be designs of tractors, for example, lawn mowers, narrow vineyard tractors, low profile tractors used in buildings with limited overhead clearance or in orchards, high-clearance tractors and special forestry machines, such as forwarders and skidders, for which this Annex is not applicable. U.K.

3. Rules and directions U.K.

3.1. General regulations U.K.

3.1.1. The protective structure may be manufactured either by the tractor manufacturer or by an independent firm. In either case a test is only valid for the model of tractor on which it is carried out. The protective structure must be retested for each model of tractor to which it is to be fitted. However, testing stations may certify that the strength tests are also valid for tractor models derived from the original model by modifications to the engine, transmission and steering and front suspension. On the other hand, more than one protective structure may be tested for any one model of tractor. U.K.

3.1.2. The protective structure submitted for static test must be supplied attached in the normal manner to the tractor or tractor chassis on which it is used. The tractor chassis shall be complete including attaching brackets and other parts of the tractor that may be affected by loads imposed on the protective structure. U.K.

3.1.3. Where a ‘tandem’ tractor is concerned, the mass of the standard version of that part to which the protective structure is fitted is to be used. U.K.

3.1.4. A protective structure may be designed solely to protect the driver in the event of the tractor overturning. Onto this structure it may be possible to fit weather protection for the driver, of a more or less temporary nature. The driver will usually remove this in warm weather. There are protective structures however, in which the cladding is permanent and warm weather ventilation provided by windows or flaps. As the cladding may add to the strength of the structure and if removable may well be absent when an accident occurs, all parts that can be so taken away by the driver will be removed for the purpose of the test. Doors, roof hatch and windows that can be opened shall be either removed or fixed in the open position for the test, so that they do not add to the strength of the protective structure. It shall be noted whether, in this position, they would create a hazard for the driver in the event of overturning. U.K.

Throughout the remainder of these rules, reference will only be made to testing the protective structure. It must be understood that this includes cladding not of a temporary nature.

A description of any temporary cladding supplied is to be included in the specifications. All glass or similar brittle material shall be removed prior to the test. Tractor and protective structure components which might sustain needless damage during the test and which do not affect the strength of the protective structure or its dimensions may be removed prior to the test if the manufacturer wishes. No repairs or adjustment may be carried out during the test.

3.1.5. Any component of the tractor contributing to the strength of the protective structure such as mud-guards, which has been reinforced by the manufacturer, should be described and its measurements given in the test report. U.K.

3.2. Apparatus U.K.

For verifying that the clearance zone has not been entered during the test, means shall be used as described in point 1.6, figures 4.11 to 4.13 and Table 4.2.

3.2.1. Horizontal loading tests (figures 4.1 to 4.5) U.K.

The following shall be used in horizontal loading tests:

3.2.1.1.

material, equipment and means of attachment to ensure that the tractor chassis is firmly fixed to the ground and supported independently of the tyres;

3.2.1.2.

device for applying a horizontal force to the protective structure; provision shall be made so that the load can be uniformly distributed normal to the direction of loading;

3.2.1.2.1.

a beam of length not less than 250 mm nor more than 700 mm in exact multiples of 50 mm between these lengths shall be used. The beam shall have a vertical dimension of 150 mm;

3.2.1.2.2.

the edges of the beam in contact with the protective structure shall be curved with a maximum radius of 50 mm;

3.2.1.2.3.

universal joints or the equivalent shall be incorporated to ensure that the loading device does not constrain the protective structure in rotation or translation in any direction other than the direction of loading;

3.2.1.2.4.

where the straight line defined by the appropriate beam on the protective structure is not normal to the direction of application of load the space shall be packed so as to distribute the load over the full length;

3.2.1.3.

equipment for measuring force and deflection in the load direction, relative to the tractor chassis. To ensure accuracy, measurements shall be taken as continuous readings. The measuring devices shall be located so as to record the force and deflection at the point of, and along the line of, loading.

3.2.2. Crushing tests (figures 4.6 to 4.8) U.K.

The following shall be used in crushing tests:

3.2.2.1.

material, equipment and means of attachment to ensure that the tractor chassis is firmly fixed to the ground and supported independently of the tyres;

3.2.2.2.

device for applying a downward force to the protective structure, including a stiff beam with a width of 250 mm;

3.2.2.3.

equipment for measuring the total vertical force applied.

3.3. Test conditions U.K.

3.3.1. The protective structure shall be to production specifications and shall be fitted to the appropriate tractor model chassis in accordance with the manufacturer's declared method of attachment. U.K.

3.3.2. The assembly shall be secured to the bedplate so that the members connecting the assembly and the bedplate do not deflect significantly in relation to the protective structure under load. The assembly shall not receive any support under load other than that due to the initial attachment. U.K.

3.3.3. An adjustable track width setting for the wheels or tracks, if present, shall be chosen such that no interference exists with the protective structure during the tests. U.K.

3.3.4. The protective structure shall be instrumented with the necessary equipment to obtain the required force-deflection data. U.K.

3.3.5. All tests shall be performed on the same protective structure. No repairs or straightening of any members shall be carried out between any parts of the test U.K.

3.3.6. On completion of all tests, permanent deflections of the protective structure shall be measured and recorded. U.K.

3.4. Sequence of tests U.K.

Tests shall be conducted in the following sequence:

3.4.1. Longitudinal loading U.K.

For a wheeled tractor with at least 50 % of its mass on the rear axle and for track-laying tractors, the longitudinal loading shall be applied from the rear. For other tractors the longitudinal loading shall be applied from the front.

3.4.2. First crushing test U.K.

The first crushing test shall be applied at the same end of the protective structure as the longitudinal loading

3.4.3. Loading from the side U.K.

In the case of an offset seat or non-symmetrical strength of the protective structure, the side loading shall be on the side most likely to lead to infringement of the clearance zone.

3.4.4. Second crushing test U.K.

The second crushing test shall be applied at the end of the protective structure opposite from that receiving the first longitudinal loading. In the case of two-post designs, the second crush may be at the same point as the first crush.

3.4.5. Second longitudinal loading U.K.

3.4.5.1. A second longitudinal loading shall be applied to tractors fitted with a folding (e.g. two posts) or tiltable (e.g. non-two posts) protective structure, if one or more of the following conditions exists: U.K.

Temporary folding for special operating conditions;

Structures designed to tilt for service, unless the tilt mechanism is independent from the structural integrity of the roll-over protective structure.

3.4.5.2. For folding protective structures, if the first longitudinal loading was applied in the folding direction then a second longitudinal loading is not required. U.K.

3.5. Horizontal loading tests from the rear, front and side U.K.

3.5.1. General provisions U.K.

3.5.1.1. The load applied to the protective structure shall be distributed uniformly by means of a stiff beam, normal to the direction of load application (see 3.2.1.2). The stiff beam may be equipped with a means of preventing its sideways displacement. The rate of load application shall be such that it can be considered static. As the load is applied, force and deflection shall be recorded as a continuous record to ensure accuracy. Once the initial application has commenced, the load shall not be reduced until the test has been completed. The direction of the applied force shall be within the following limits: U.K.

• at start of test (no load): ± 2°,

• during test (under load): 10° above and 20° below the horizontal.

The rate of load application shall be considered static if the rate of deflection under loading is not greater than 5 mm/s.

3.5.1.2. If no structural cross member exists at the point of load application, a substitute test beam which does not add strength will be utilised. U.K.

3.5.2. Longitudinal loading (figures 4.1 and 4.2) U.K.

The load shall be applied horizontally and parallel to the median plane of the tractor. If the load is applied from the rear (Section 3.4.1), the longitudinal load and the lateral load shall be applied on different sides of the median plane of the tractor. If the longitudinal load is applied from the front, it shall be on the same side as the side load.

The load shall be applied to the uppermost transverse structural member of the protective structure (i.e. that part which would be likely to strike the ground first in an overturn).

The point of application of the load shall be located at one sixth of the width of the top of the protective structure inwards from the outside corner. The width of the protective structure shall be taken as the distance between two lines parallel to the median plane of the tractor touching the outside extremities of the protective structure in the horizontal plane touching the top of the uppermost transverse structural members.

In the event that the ROPS is formed of curved members and no appropriate corners exist, the following general procedure shall apply for determining W. The test engineer shall identify the curved member most likely to first strike ground in the event of an asymmetrical rear or front overturn (e.g. an overturn to the front or rear where one side of the ROPS is likely to bear the initial loading). The endpoints of W shall be the mid-points of the external radii created between other straight or curved members which form the uppermost ROPS structure. In the event that multiple curved members could be selected, the test engineer shall establish ground lines for each possible member to determine which surface is most likely to strike ground first. See figures 4.3 a) and b) for examples.

Note: U.K.

In the event of curved members, only the width at the end of the structure to which the longitudinal load is to be applied need be considered

The length of the load distribution device (see 3.2.1.2) shall be not less than one third of the width of the protective structure and not more than 49 mm greater than this minimum.

The longitudinal loading shall be stopped when:

3.5.2.1.

the energy absorbed by the protective structure is equal to or greater than the required energy input, E_IL1 where:

3.5.2.2.

the protective structure infringes on the clearance zone or leaves the clearance zone unprotected (Condition of acceptance in 3.8 below).

3.5.3. Side loading (figures 4.4 and 4.5) U.K.

The side loading shall be applied horizontally at 90° to the median plane of the tractor. It shall be applied to the upper extremity of the protective structure at a point (160 – a_h ) mm forward of the Seat Index Point.

For tractors with a reversible driver's position (reversible seat and steering wheel), it shall be applied to the upper extremity of the protective structure at the mid-point between the two Seat Index Points.

If it is certain that any particular part of the protective structure will touch ground first when the tractor overturns sideways, the loading shall be applied at that point, provided that this permits uniform distribution of the load as specified in 3.5.1.1. In the case of a two-post protective structure, side loading shall be applied at the structural member uppermost on the side, regardless of the seat index position.

Specifications for the load distribution beam are given in Section 3.2.1.2.1.

The side loading shall be stopped when:

3.5.3.1.

The energy absorbed by the protective structure is equal to or greater than the required energy, E_IS , where:

3.5.3.2.

The protective structure infringes on the clearance zone or leaves the clearance zone unprotected (Condition of acceptance in 3.8 below).

3.6. Crushing tests U.K.

3.6.1. Crushing at the rear (figures 4.6, 4.7.a to 4.7.e) U.K.

3.6.1.1. The crushing beam shall be positioned across the rear uppermost structural members so that the resultant of the crushing forces is located in the vertical reference plane of the tractor. The crushing force F shall be applied where: U.K.

This force shall be maintained for 5 seconds after cessation of any visually detectable movement of the protective structure.

3.6.1.2. Where the rear part of the protective structure roof will not sustain the full crushing force, the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the rear of the tractor capable of supporting the tractor when overturned. The force shall then be removed and the crushing beam repositioned over that part of the protective structure that would support the tractor when completely overturned. The crushing force F = 20 M shall then be applied. U.K.

3.6.2. Crushing at the front (figures 4.6 to 4.8) U.K.

3.6.2.1. The crushing beam shall be positioned across the front uppermost structural members so that the resultant of the crushing forces is located in the vertical reference plane of the tractor. The crushing force F shall be applied where: U.K.

This force shall be maintained for 5 seconds after cessation of any visually detectable movement of the protective structure.

3.6.2.2. Where the front part of the roof of the protective structure will not sustain the full crushing force (figures 4.8.a and 4.8.b), the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the front of the tractor capable of supporting the tractor when overturned. The force shall then be removed and the crushing beam repositioned over that part of the protective structure that would support the tractor when completely overturned. The crushing force F = 20 M shall then be applied. U.K.

3.7. Second longitudinal loading test U.K.

The load shall be applied in the opposite direction to and at the corner farthest from the point of application of the first longitudinal load (figures 4.1 and 4.2).

The longitudinal loading shall be stopped when:

3.7.1.

The energy absorbed by the protective structure is equal to or greater than the required energy, E_IL2 , where:

3.7.2.

The protective structure infringes on the clearance zone or leaves the clearance zone unprotected (Condition of acceptance in 3.8 below

3.8. Conditions for acceptance U.K.

For the protective structure to be accepted it shall fulfil the following conditions during and after completion of the tests:

3.8.1.

no part shall enter the clearance zone during any part of the tests. No part may strike the seat during the tests. Furthermore, the clearance zone shall not be outside the protection of the protective structure. For this purpose, it shall be considered to be outside the protection of the structure if any part of it would come in contact with flat ground if the tractor overturned towards the direction from which the test load is applied. For estimating this, the tyres and track width setting shall be the smallest standard fitting specified by the manufacturer;

3.8.2.

for the articulated tractors, the median planes of the two parts shall be assumed to be in line;

3.8.3.

after the final crushing test, the permanent deflection of the protective structure shall be recorded. For this purpose, before the start of the test, the position of the main protective structure members in relation to the Seat Index Point must be recorded. Then any displacement of the members resulting from the loading tests and any change of the height of the front and back members of the roof of the protective structure shall be recorded;

3.8.4.

at the point where the required energy absorption is met in each of the specified horizontal loading tests the force shall exceed 0,8 F_max ;

3.8.5.

an overload test shall be required if the applied force decreases by more than 3 % over the last 5 % of the deflection attained when the energy required is absorbed by the structure (Figures 4.14 to 4.16). Description of the overload test:

3.8.5.1.

an overload test shall consist of continuing the horizontal loading in increments of 5 % of the original required energy, up to a maximum of 20 % additional energy;

3.8.5.2.

the overload test shall be successfully completed if after the absorption of 5, 10 or 15 % additional energy the force drops by less than 3 % for each 5 % energy increment whilst remaining greater than 0,8 F_max or if, after the absorption of 20 % additional energy the force is greater than 0,8 F_max ;

3.8.5.3.

additional cracks or tears or entry into or lack of protection of the clearance zone, due to elastic deformation, are permitted during the overload test. After removing the load, however, the protective structure shall not infringe on the clearance zone, which shall be completely protected;

3.8.6.

the required force must be sustained in both crushing tests;

3.8.7.

there shall be no protruding member or component which would be likely to cause serious injury during an overturning accident or which, through the deformation occurring, might trap the operator, for example by the leg or foot;

3.8.8.

there shall be no other components presenting a serious hazard to the operator.

3.9. Extension to other tractor models U.K.

3.9.1. [Not applicable] U.K.

3.9.2. Technical extension U.K.

When technical modifications occur on the tractor, the protective structure or the method of attachment of the protective structure to the tractor, the testing station that has carried out the original test can issue a ‘technical extension report’ in the following cases:

3.9.2.1.

Extension of the structural test results to other models of tractors

The loading and crushing tests need not be carried out on each model of tractor, provided that the protective structure and tractor comply with the conditions referred to hereunder 3.9.2.1.1 to 3.9.2.1.5

3.9.2.1.1.

The structure shall be identical to the one tested;

3.9.2.1.2.

The required energy shall not exceed the energy calculated for the original test by more than 5 %. The 5 % limit shall also apply to extensions in the case of substituting tracks for wheels on the same tractor;

3.9.2.1.3.

The method of attachment and the tractor components to which the attachment is made shall be identical;

3.9.2.1.4.

Any components such as mud-guards and bonnet that may provide support for the protective structure shall be identical;

3.9.2.1.5.

The position and critical dimensions of the seat in the protective structure and the relative position of the protective structure on the tractor shall be such that the clearance zone would have remained within the protection of the deflected structure throughout all tests (this shall be checked by using the same reference of clearance zone as in the original test report, respectively Seat Reference Point [SRP] or Seat Index Point [SIP]).

3.9.2.2.

Extension of the structural test results to modified models of the protective structure.

This procedure has to be followed when the provisions of paragraph 3.9.2.1 are not fulfilled, it may not be used when the method of attachment of the protective structure to the tractor does not remain of the same principle (e.g. rubber supports replaced by a suspension device)

3.9.2.2.1.

Modifications having no impact on the results of the initial test (e.g. weld attachment of the mounting plate of an accessory in a non-critical location on the structure), addition of seats with different SIP location in the protective structure (subject to checking that the new clearance zone(s) remain(s) within the protection of the deflected structure throughout all tests).

3.9.2.2.2.

Modifications having a possible impact on the results of the original test without calling into question the acceptability of the protective structure (e.g. modification of a structural component, modification of the method of attachment of the protective structure to the tractor). A validation test can be carried out and the test results will be drafted in the extension report.

The following limits for this type extension are fixed.

3.9.2.2.2.1.

No more than 5 extensions may be accepted without a validation test;

3.9.2.2.2.2.

The results of the validation test will be accepted for extension if all the acceptance conditions of this Annex are fulfilled and if the force measured when the required energy level has been reached in the various horizontal load tests does not deviate from the force measured when the required energy has been reached in the original test by more than ± 7 % and the deflection measured⁽³⁾ when the required energy level has been reached in the various horizontal load tests does not deviate from the deflection measured when the required energy has been reached in the original test report by more than ± 7 %.

3.9.2.2.2.3.

More than one protective structure modifications may be included in a single extension report if they represent different options of the same protective structure, but only one validation test can be accepted in a single extension report. The options not tested shall be described in a specific section of the extension report.

3.9.2.2.3.

Increase of the reference mass declared by the manufacturer for a protective structure already tested. If the manufacturer wants to keep the same approval number it is possible to issue an extension report after having carried out a validation test (the limits of ± 7 % specified in 3.9.2.2.2.2 are not applicable in such a case).

3.10. [Not applicable] U.K.

3.11. Cold weather performance of protective structures U.K.

3.11.1. If the protective structure is claimed to have properties resistant to cold weather embrittlement, the manufacturer shall give details that shall be included in the report. U.K.

[F1 3.11.2. Where applicable, cold weather embrittlement properties shall be verified in accordance with the requirements given in 3.11.2.1 to 3.11.2.7.] U.K.

3.11.2.1. Bolts and nuts used to attach the protective structure to the tractor and used to connect structural parts of the protective structure shall exhibit suitable controlled reduced temperature toughness properties. U.K.

3.11.2.2. All welding electrodes used in the fabrication of structural members and mounts shall be compatible with the protective structure material as given in 3.11.2.3 below. U.K.

3.11.2.3. Steel materials for structural members of the protective structure shall be of controlled toughness material exhibiting minimum Charpy V-Notch loading energy requirements as shown in Table 4.1. Steel grade and quality shall be specified in accordance with ISO 630:1995; Amd1:2003. U.K.

Steel with an as-rolled thickness less than 2,5 mm and with a carbon content less than 0,2 % is considered to meet this requirement. Structural members of the protective structure made from materials other than steel shall have equivalent low temperature loading resistance.

3.11.2.4. When testing the Charpy V-Notch loading energy requirements, the specimen size shall be no less than the largest of the sizes stated in Table 4.1 that the material will permit. U.K.

3.11.2.5. The Charpy V-Notch tests shall be made in accordance with the procedure in ASTM A 370-1979, except for specimen sizes that shall be in accordance with the dimensions given in Table 4.1. U.K.

3.11.2.6. Alternatives to this procedure are the use of killed or semi-killed steel for which an adequate specification shall be provided. Steel grade and quality shall be specified in accordance with ISO 630:1995; Amd1:2003. U.K.

3.11.2.7. Specimens are to be longitudinal and taken from flat stock, tubular or structural sections before forming or welding for use in the protective structure. Specimens from tubular or structural sections are to be taken from the middle of the side of greatest dimension and shall not include welds. U.K.

Table 4.1
Minimum Charpy V-notch impact energies
a Indicates preferred size. Specimen size shall be no less than largest preferred size that the material permits.
b The energy requirement at – 20 °C is 2,5 times the value specified for – 30 °C. Other factors affect impact energy strength, i.e. direction of rolling, yield strength, grain orientation and welding. These factors shall be considered when selecting and using steel.
Specimen size	Energy at	Energy at
	– 30 °C	– 20 °C
mm	J	Jb
10 × 10a	11	27,5
10 × 9	10	25
10 × 8	9,5	24
10 × 7,5a	9,5	24
10 × 7	9	22,5
10 × 6,7	8,5	21
10 × 6	8	20
10 × 5a	7,5	19
10 × 4	7	17,5
10 × 3,5	6	15

3.12. [Not applicable] U.K.

Figure 4.1 U.K. Front and rear load applications, Protective cab and rear roll bar frame U.K.(Dimensions in mm) U.K.

Figure 4.1.a

Protective cab

Figure 4.1.b

Rear roll bar frame

Figure 4.2

Longitudinal load applications

Figure 4.3 Examples of ‘W’ for ROPS with curved members U.K.

Figure 4.3.a

Four-post ROPS

Key: U.K.

1

—

Seat index point

2

—

SIP, longitudinal centre-plane

3

—

Point of second longitudinal load application, front or rear

4

—

Point of longitudinal load application, rear or front

[F3 Figure 4.3.b Two-post ROPS] U.K.

Figure 4.4 Side load application (side view), protective cab and rear roll bar frame U.K.

Figure 4.4.a

Protective cab

Figure 4.4.b

Rear roll bar frame

Figure 4.5 Side load application (rear view) U.K.

(a)	(b)

Figure 4.6

Example of arrangement for crushing test

Figure 4.7 Position of beam for front and rear crushing tests, protective cab and rear roll bar frame U.K.

Figure 4.7.a Rear Crush U.K.

Figure 4.7.b Front Crush U.K.

Figure 4.7.c Crush test for rear roll bar U.K.

Figure 4.7.d

Protective cab

Figure 4.7.e

Rear roll bar frame

Figure 4.8 Position of beam for front crushing test when full crushing force not sustained in front U.K.

Figure 4.8.a

Protective cab

Figure 4.8.b Rear roll bar frame U.K.

Figure 4.9 The crushing force is applied with the beam having its centre point passing in the vertical reference plane of the tractor (being also that of the seat and steering wheel) U.K.

Case 1

:

when the ROPS, the seat and the steering wheel are rigidly fixed to the tractor body;

Case 2

:

when the ROPS is rigidly fixed to the tractor body, and the seat and the steering wheel are located on a floor (suspended or not) but they are NOT connected to the ROPS.

In these cases, the vertical reference plane referred to the seat and steering wheel includes normally also the centre of gravity of the tractor during the execution of the entire series of loadings.

Figure 4.10

The crushing force is applied with the beam having its centre point passing only in the vertical reference plane of the tractor

Cases 3 and 4 can be defined, in which the ROPS is fixed to a platform, rigidly fixed (case 3) or suspended (case 4) in respect to the tractor chassis. These joining or linkage solutions cause different movements to cabs and clearance zone as well as the vertical reference plane.

Table 4.2

Dimensions of the clearance zone

Dimensions	mm	Remarks
A1 A0	100	minimum
B1 B0	100	minimum
F1 F0	250	minimum
F2 F0	250	minimum
G1 G0	250	minimum
G2 G0	250	minimum
H1 H0	250	minimum
H2 H0	250	minimum
J1 J0	250	minimum
J2 J0	250	minimum
E1 E0	250	minimum
E2 E0	250	minimum
D0 E0	300	minimum
J0 E0	300	minimum
A1 A2	500	minimum
B1 B2	500	minimum
C1 C2	500	minimum
D1 D2	500	minimum
I1 I2	500	minimum
F0 G0	—	depending on the tractor
I0 G0	—
C0 D0	—
E0 F0	—

Figure 4.11

Clearance zone

Key: U.K.

1

—

Seat index point

Note: for dimensions, see Table 4.2 above U.K.

Figure 4.12 Clearance zone U.K.

Figure 4.12.a

Side view section in reference plan

Figure 4.12.b

Rear or front view

Key: U.K.

1

—

Seat index point

2

—

Force

3

—

Vertical reference plane

Figure 4.13 Clearance zone for tractor with reversible seat and steering wheel, protective cab and rear roll bar frame U.K.

Figure 4.13.a

Protective cab

Figure 4.13.b

Rear roll bar frame

Figure 4.14

Force/deflection curve

Overload test not necessary

Notes: U.K.

1. Locate F_a in relation to 0,95 D' U.K.

2. Overload test not necessary as F_a ≤ 1,03 F' U.K.

Figure 4.15

Force/deflection curve

Overload test necessary

Notes: U.K.

1. Locate Fa in relation to 0,95 D' U.K.

2. Overload test necessary as F_a > 1,03 F' U.K.

3. Overload test performance satisfactory as Fb > 0,97 F' and Fb > 0,8 F max U.K.

Figure 4.16

Force/deflection curve

Overload test to be continued

Notes: U.K.

1. Locate F_a in relation to 0,95 D' U.K.

2. Overload test necessary as F_a > 1,03 F' U.K.

3. F_b < 0,97 F' therefore further overload necessary U.K.

4. F_c < 0,97 Fb therefore further overload necessary U.K.

5. F_d < 0,97 Fc therefore further overload necessary U.K.

6. Overload test performance satisfactory, if Fe > 0,8 F max U.K.

7. Failure at any stage when load drops below 0,8 F max U.K.

Explanatory notes to Annex VIII U.K.

^{[F1 (1)} Unless otherwise stated, the text of the requirements and the numbering set out in point B are identical with the text and numbering of the OECD standard Code for the official testing of protective structures on agricultural and forestry tractors (static test), OECD standard Code 4, Edition 2017 of February 2017.] U.K.

⁽²⁾ Users are reminded that the seat index point is determined according to ISO 5353:1995 and is a fixed point with respect to the tractor that does not move as the seat is adjusted away from the mid-position. For purposes of determining the clearance zone, the seat shall be placed in the rear and uppermost position. U.K.

⁽³⁾ Permanent + elastic deflection measured at the point when the required energy level is obtained. U.K.

ANNEX IX

Requirements applying to roll-over protection structures (front mounted roll-over protective structures on narrow-track tractors) U.K.

A. GENERAL PROVISIONS U.K.

1. The Union requirements applying to roll-over protection structures (front mounted roll-over protective structures on narrow-track tractors) are set out in point B. U.K.

2. Tests may be performed in accordance with the static or alternatively the dynamic test procedures as set out in sections B1 and B2. The two methods are deemed equivalent. U.K.

3. In addition to the requirements set out in point 2, the requirements for foldable ROPS performance set out in section B3 shall be met. U.K.

4. In section B4 is set out the computer programme for determining the continuous or interrupted roll over behaviour which shall be used for the virtual testing. U.K.

B. REQUIREMENTS APPLYING TO ROLL-OVER PROTECTION STRUCTURES (FRONT MOUNTED ROLL-OVER PROTECTIVE STRUCTURES ON NARROW-TRACK TRACTORS)⁽¹⁾ U.K.

1. Definitions U.K.

1.1 [Not applicable] U.K.

1.2. Roll-Over Protective Structure (ROPS) U.K.

Roll-over protective structure (protective cab or frame), hereinafter called ‘protective structure’, means the structure on a tractor the essential purpose of which is to avoid or limit risks to the driver resulting from roll-over of the tractor during normal use.

The roll-over protective structure is characterized by the provision of space for a clearance zone large enough to protect the driver when seated either inside the envelope of the structure or within a space bounded by a series of straight lines from the outer edges of the structure to any part of the tractor that might come into contact with flat ground and that is capable of supporting the tractor in that position if the tractor overturns.

1.3. Track U.K.

[F1 1.3.1. Preliminary definition: median plane of the wheel or track U.K.

The median plane of the wheel or track is equidistant from the two planes containing the periphery of the rims or tracks at their outer edges.]

1.3.2. Definition of track U.K.

The vertical plane through the wheel axis intersects its median plane along a straight line which meets the supporting surface at one point. If A and B are the two points thus defined for the wheels on the same axle of the tractor, then the track width is the distance between points A and B. The track may be thus defined for both front and rear wheels. Where there are twin wheels, the track is the distance between two planes each being the median plane of the pairs of wheels. [F2 For tracklaying tractors, the track is the distance between the median planes of the tracks.]

1.3.3. Additional definition: median plane of the tractor U.K.

Take the extreme positions of points A and B for the tractor rear axle, which gives the maximum possible value for the track. The vertical plane at right angles to the line AB at its centre point is the median plane of the tractor.

1.4. Wheelbase U.K.

The distance between the vertical planes passing through the two lines AB as defined above, one for the front wheels and one for the rear-wheels. [F2 For tractors fitted with tracks: the distance between the vertical planes perpendicular to the median longitudinal plane of the tractor passing through the axles of the driving wheels.]

1.5. Determination of seat index point; seat location and adjustment for test U.K.

1.5.1. Seat index point (SIP)⁽²⁾ U.K.

The seat index point shall be determined in accordance with ISO 5353:1995

1.5.2. Seat location and adjustment for test U.K.

1.5.2.1.

where the seat position is adjustable, the seat must be adjusted to its rear uppermost position;

1.5.2.2.

where the inclination of the backrest is adjustable, it must be adjusted to the mid position;

1.5.2.3.

where the seat is equipped with suspension, the latter must be blocked at mid-travel, unless this is contrary to the instructions clearly laid down by the seat manufacturer;

1.5.2.4.

where the position of the seat is adjustable only lengthwise and vertically, the longitudinal axis passing through the Seat Index Point shall be parallel with the vertical longitudinal plane of the tractor passing through the centre of the steering wheel and not more than 100 mm from that plane.

1.6. Clearance zone U.K.

1.6.1. Reference vertical plane and line U.K.

The clearance zone (figure 6.1) is defined on the basis of a vertical reference plane and a reference line:

1.6.1.1.

The reference plane is a vertical plane, generally longitudinal to the tractor and passing through the Seat Index Point and the centre of the steering wheel. Normally the reference plane coincides with the longitudinal median plane of the tractor. This reference plane shall be assumed to move horizontally with the seat and steering wheel during loading but to remain perpendicular to the tractor or the floor of the roll-over protective structure.

1.6.1.2.

The reference line is the line contained in the reference plane that passes through a point located 140 + a_h rearward and 90 – a_v below the Seat Index Point and the first point on the steering wheel rim that it intersects when brought to the horizontal.

1.6.2. Determination of the clearance zone for tractors with a non-reversible seat U.K.

The clearance zone for tractors with a non-reversible seat is defined in 1.6.2.1 to 1.6.2.11 below and is bounded by the following planes, the tractor being on a horizontal surface, the seat adjusted and located as specified in sections 1.5.2.1 to 1.5.2.4⁽³⁾, and the steering wheel, where adjustable, adjusted to the mid position for seated driving:

1.6.2.1.

two vertical planes 250 mm on either side of the reference plane, these vertical planes extending 300 mm upwards from the plane defined in 1.6.2.8 below and longitudinally at least 550 mm in front of the vertical plane perpendicular to the reference plane passing (210 – a_h ) mm in front of the Seat Index Point;

1.6.2.2.

two vertical planes 200 mm on either side of the reference plane, these vertical planes extending 300 mm upwards from the plane defined in 1.6.2.8 below and longitudinally from the surface defined in 1.6.2.11 below to the vertical plane perpendicular to the reference plane passing (210 – a_h ) mm in front of the Seat Index Point;

1.6.2.3.

an inclined plane perpendicular to the reference plane, parallel with and 400 mm above the reference line, extending backwards to the point where it intersects the vertical plane which is perpendicular to the reference plane and which passes through a point (140 + a_h ) mm rearward of the Seat Index Point;

1.6.2.4.

an inclined plane, perpendicular to the reference plane which meets the plane defined in 1.6.2.3 above at its rearmost edge and rests on the top of the seat back rest;

1.6.2.5.

a vertical plane perpendicular to the reference plane, passing at least 40 mm forward of the steering wheel and at least 760 – a_h forward of the Seat Index Point;

1.6.2.6.

a cylindrical surface with its axis perpendicular to the reference plane, having a radius of 150 mm and tangential to the planes defined in 1.6.2.3 and 1.6.2.5;

1.6.2.7.

two parallel inclined planes passing through the upper edges of the planes defined in 1.6.2.1 above with the inclined plane on the side where the impact is applied no closer than 100 mm to the reference plane above the zone of clearance;

1.6.2.8.

a horizontal plane passing through a point 90 – a_v below the Seat Index Point;

1.6.2.9.

two portions of the vertical plane perpendicular to the reference plane passing 210 – a_h forward of the Seat Index Point, both these part planes joining respectively the rearmost limits of the planes defined in 1.6.2.1 above to the foremost limits of the planes defined in 1.6.2.2 above;

1.6.2.10.

two portions of the horizontal plane passing 300 mm above plane defined in 1.6.2.8 above, both these part planes joining respectively the uppermost limits of the vertical planes defined in 1.6.2.2 above to the lowermost limits of the oblique planes defined in 1.6.2.7 above;

1.6.2.11.

a surface, curved if necessary, whose generating line is perpendicular to the reference plane and rests on the back of the seat backrest.

1.6.3. Determination of the clearance zone for tractors with a reversible driver’s position U.K.

For tractors with a reversible driver’s position (reversible seat and steering wheel), the clearance zone is the envelope of the two clearance zones defined by the two different positions of the steering wheel and the seat. For each position of steering wheel and the seat the clearance zone shall respectively be defined on the basis of above sections 1.6.1 and 1.6.2 for driver’s position in normal position and on the basis of sections 1.6.1 and 1.6.2 of Annex X for driver’s position in reverse position (see figure 6.2).

1.6.4. Optional seats U.K.

1.6.4.1.

In case of tractors that could be fitted with optional seats, the envelope comprising the Seat Index Points of all options offered shall be used during the tests. The protective structure shall not enter the larger clearance zone which takes account of these different Seat Index Points.

1.6.4.2.

In the case where a new seat option is offered after the test has been performed, a determination shall be made to see whether the clearance zone around the new SIP falls within the envelope previously established. If it does not, a new test must be performed.

1.6.4.3.

Optional seat does not include a seat for a person in addition to the driver and from where the tractor cannot be controlled. The SIP shall not be determined because the definition of the clearance zone is in relation to the driver seat.

1.7. Mass U.K.

1.7.1. Unballasted / Unladen Mass U.K.

The mass of the tractor excluding optional accessories but including coolant, oils, fuel, tools plus the protective structure. Not included are optional front or rear weights, tyre ballast, mounted implements, mounted equipment or any specialised components;

1.7.2. Maximum Permissible Mass U.K.

The maximum mass of the tractor stated by the manufacturer to be technically permissible and declared on the vehicle’s identification plate and/or in the Operator’s Handbook;

1.7.3. Reference Mass U.K.

The mass, selected by the manufacturer, used in formulae to calculate the height of fall of the pendulum block, the energy inputs and crushing forces to be used in the tests. Must not be less than the unballasted mass and must be sufficient to ensure the Mass Ratio does not exceed 1,75 (see Sections 1.7.4 and 2.1.3);

1.7.4. Mass Ratio U.K.

The ratio of This must not be greater than 1,75.

1.8. Permissible measurement tolerances U.K.

Linear dimension:		± 3 mm
except for:	- - tyre deflection:	± 1 mm
	- - structure deflection during horizontal loadings:	± 1 mm
	- - height of fall of the pendulum block:	± 1 mm
Masses:		± 0,2 % (of the sensor full scale)
Forces:		± 0,1 % (of the full scale)
Angles:		± 0,1°

1.9. Symbols U.K.

ah	(mm)	Half of the horizontal seat adjustment
av	(mm)	Half of the vertical seat adjustment
B	(mm)	Minimum overall width of the tractor;
Bb	(mm)	Maximum outer width of the protective structure;
D	(mm)	Deflection of the structure at the point of impact (dynamic tests) or at the point of, and in line with, the load application (static tests);
D'	(mm)	Deflection of the structure for the calculated energy required;
Ea	(J)	Strain energy absorbed at point when load is removed. Area contained within F-D curve;
Ei	(J)	Strain energy absorbed. Area under F-D curve;
E'i	(J)	Strain energy absorbed after additional loading following a crack or tear;
E''i	(J)	Strain energy absorbed in overload test in the event of the load having been removed before starting this overload test. Area under F-D curve;
Eil	(J)	Energy input to be absorbed during longitudinal loading;
Eis	(J)	Energy input to be absorbed during side loading;
F	(N)	Static load force;
F'	(N)	Loading force for calculated energy required, corresponding to E’i ;
F-D		Force/deflection diagram;
Fi	(N)	Force applied to rear hard fixture;
Fmax	(N)	Maximum static load force occurring during loading, with the exception of the overload;
Fv	(N)	Vertical crushing force;
H	(mm)	Falling height of the pendulum block (dynamic tests);
H’	(mm)	Falling height of the pendulum block for additional test (dynamic tests);
I	(kg.m2)	Tractor reference moment of inertia about the centre line of the rear wheels, whatever the mass of these rear wheels may be;
L	(mm)	Tractor reference wheelbase;
M	(kg)	Tractor reference mass during strength tests.

2. Field of application U.K.

2.1. This Annex shall apply to tractors having the following characteristics: U.K.

2.1.1.

ground clearance of not more than 600 mm beneath the lowest points of the front and rear axles, allowing for the differential;

2.1.2.

[F1 fixed or adjustable minimum track width with one of the axles less than 1 150 mm fitted with tyres or tracks of a larger size. It is assumed that the axle mounted with the wider tyres or tracks is set at a track width of not more than 1 150 mm. It must be possible to set the track width of the other axle in such a way that the outer edges of the narrower tyres or tracks do not go beyond the outer edges of the tyres or tracks of the other axle. Where the two axles are fitted with rims and tyres or tracks of the same size, the fixed or adjustable track width of the two axles must be less than 1 150 mm;

2.1.3.

mass greater than 400 kg but less than 3 500 kg, corresponding to the unladen mass of the tractor, including the roll-over protective structure and tyres or tracks of the largest size recommended by the manufacturer. The maximum permissible mass shall not exceed 5 250 kg and the Mass Ratio (Maximum Permissible Mass/Reference Mass) must not be greater than 1,75;]

2.1.4.

and being fitted with roll-over protective structures of the dual-pillar type mounted only in front of the Seat Index Point and characterised by a reduced clearance zone attributable to the tractor silhouette, thus rendering it inadvisable, under any circumstances, to impede access to the driving position but worthwhile retaining these structures (fold-down or not) in view of their undoubted ease of use.

2.2. It is recognised that there may be designs of tractors, for example, special forestry machines, such as forwarders and skidders, for which this Annex is not applicable. U.K.

B1. STATIC TEST PROCEDURE U.K.

3. Rules and directions U.K.

3.1. Prior conditions for the strength tests U.K.

3.1.1. Completion of two preliminary tests U.K.

The protective structure may only be subjected to the strength tests if both the Lateral Stability Test and the Non-Continuous Rolling Test have been satisfactorily completed (see flow diagram as figure 6.3).

3.1.2. Preparation for the preliminary tests U.K.

3.1.2.1. The tractor must be equipped with the protective structure in its safety position. U.K.

3.1.2.2. The tractor must be fitted with tyres having the greatest diameter indicated by the manufacturer and the smallest cross-section for tyres of that diameter. The tyres must not be liquid-ballasted and must be inflated to the pressure recommended for field work. U.K.

3.1.2.3. The rear wheels must be set to the narrowest track width; the front wheels must be set as closely as possible to the same track width. If it is possible to have two front track settings which differ equally from the narrowest rear track setting, the wider of these two front track settings must be selected. [F2 In case of tractor fitted with tracks, the manufacturer shall define the tracks setting.] U.K.

3.1.2.4. All the tractor’s tanks must be filled or the liquids must be replaced by an equivalent mass in the corresponding position. U.K.

3.1.2.5. All attachments used in the series production shall be fixed to the tractor in the normal position. U.K.

3.1.3. Lateral stability test U.K.

3.1.3.1. The tractor, prepared as specified above, is placed on a horizontal plane so that the tractor front-axle pivot point or, in the case of an articulated tractor, the horizontal pivot point between the two axles can move freely. U.K.

3.1.3.2. Using a jack or a hoist, tilt the part of the tractor which is rigidly connected to the axle that bears more than 50 per cent of the tractor’s weight, while constantly measuring the angle of inclination. [F1 This angle must be at least 38° at the moment when the tractor is resting in a state of unstable equilibrium on the wheels or tracks touching the ground. Perform the test once with the steering wheel turned to full right lock and once with the steering wheel turned to full left lock.] U.K.

3.1.4. Non-continuous rolling test U.K.

3.1.4.1. General remarks U.K.

This test is intended to check whether a structure fitted to the tractor for the protection of the driver can satisfactorily prevent continuous roll-over of the tractor in the event of its overturning laterally on a slope with a gradient of 1 in 1.5 (figure 6.4).

Evidence of non-continuous rolling can be provided in accordance with one of the two methods described in 3.1.4.2 and 3.1.4.3.

3.1.4.2. Demonstration of non-continuous rolling behaviour by means of the overturning test U.K.

3.1.4.2.1. The overturning test must be carried out on a test slope at least four metres long (see figure 6.4). The surface must be covered with an 18-cm layer of a material that, as measured in accordance with Standards ASAE S313.3 FEB1999 and ASAE EP542 FEB1999 relating to soil cone penetrometer, has a cone penetration index of: U.K.

or

3.1.4.2.2. The tractor (prepared as described in paragraph 3.1.2) is tilted laterally with zero initial speed. For this purpose, it is placed at the start of the test slope in such a way that the wheels on the downhill side rest on the slope and the tractor’s median plane is parallel with the contour lines. After striking the surface of the test slope, the tractor may lift itself from the surface by pivoting about the upper corner of the protective structure, but it must not roll over. It must fall back on the side which it first struck. U.K.

3.1.4.3. Demonstration of non-continuous rolling behaviour by calculation U.K.

3.1.4.3.1. For the purpose of verifying non-continuous rolling behaviour by calculation, the following characteristic tractor data must be ascertained (see figure 6.5): U.K.

[F1 B 0	(m)	Rear tyre or track width;]
B6	(m)	Width of protective structure between the right and left points of impact;
B7	(m)	Width of engine bonnet;
D0	(rad)	Front-axle swing angle from zero position to end of travel;
[F1 D 2	(m)	Height of front tyres or tracks under full axle load;
D 3	(m)	Height of rear tyres or tracks under full axle load;]
H0	(m)	Height of the front-axle pivot point;
H1	(m)	Height of centre of gravity;
H6	(m)	Height at the point of impact;
H7	(m)	Height of engine bonnet;
L2	(m)	Horizontal distance between the centre of gravity and front axle;
L3	(m)	Horizontal distance between the centre of gravity and rear axle;
L6	(m)	Horizontal distance between the centre of gravity and the leading point of intersection of the protective structure (to be preceded by a minus sign if this point lies in front of the plane of the centre of gravity);
L7	(m)	Horizontal distance between the centre of gravity and the front corner of the engine bonnet;
Mc	(kg)	Tractor mass used for calculation;
Q	(kgm2)	Moment of inertia about the longitudinal axis through the centre of gravity;
S	(m)	Rear track width. [F1 The sum of the rear track width (S) and tyre or track (B 0 ) widths must be greater than the width B 6 of the protective structure.]

3.1.4.3.2. For the purposes of calculation, the following simplifying assumptions can be made: U.K.

3.1.4.3.2.1.

the stationary tractor overturns on a slope with a 1/1,5 gradient with a balanced front axle, as soon as the centre of gravity is vertically above the axis of rotation;

3.1.4.3.2.2.

[F1 the axis of rotation is parallel to the tractor's longitudinal axis and passes through the centre of the contact surfaces of the downhill front and rear wheel or track;]

3.1.4.3.2.3.

the tractor does not slide downhill;

3.1.4.3.2.4.

impact on the slope is partly elastic, with a coefficient of elasticity of:

3.1.4.3.2.5.

the depth of penetration into the slope and the deformation of the protective structure together amount to:

3.1.4.3.2.6.

no other components of the tractor penetrate into the slope.

[F3 3.1.4.3.3. The computer programme (BASIC) for determining the continuous or interrupted roll-over behaviour of a laterally overturning narrow-track tractor with a front-mounted roll-over protective structure is described in section B4, with examples 6.1 to 6.11.] U.K.

3.1.5. Measurement methods U.K.

3.1.5.1. Horizontal distances between the centre of gravity and rear (L₃) or front (L₂) axles U.K.

The distance between the rear and front axles on both sides of the tractor shall be measured in order to verify there is no steering angle.

[F1 The distances between the centre of gravity and the rear axle ( L ₃ ) or the front axle ( L ₂ ) shall be calculated from the mass distribution of the tractor between the rear and the front wheels or tracks.]

[F1 3.1.5.2. Heights of rear ( D ₃ ) and front ( D ₂ ) tyres or tracks U.K.

The distance from the highest point of the tyre or tracks to the ground plane shall be measured (Figure 6.5), and the same method shall be used for the front and rear tyres or tracks.]

3.1.5.3. Horizontal distance between the centre of gravity and the leading point of intersection of the protective structure (L₆). U.K.

The distance between the centre of gravity and the leading point of intersection of the protective structure shall be measured (figures 6.6.a, 6.6.b and 6.6.c). If the protective structure is in front of the plane of the centre of gravity, the recorded measure will be preceded by a minus sign (– L₆).

3.1.5.4. Width of the protective structure (B₆) U.K.

The distance between the right and left points of impact of the two vertical posts of the structure shall be measured.

[F1 The point of impact is defined by the plane tangent to the protective structure passing through the line made by the top outer points of the front and rear tyres or tracks (Figure 6.7).]

3.1.5.5. Height of the protective structure (H₆) U.K.

The vertical distance from the point of impact of the structure to the ground plane shall be measured.

3.1.5.6. Height of the engine bonnet (H₇) U.K.

The vertical distance from the point of impact of the engine bonnet to the ground plane shall be measured.

[F1 The point of impact is defined by the plane tangent to the engine bonnet and the protective structure passing through the top outer points of the front tyre or track (Figure 6.7). The measurement shall be made on both sides of the engine bonnet.]

3.1.5.7. Width of the engine bonnet (B₇) U.K.

The distance between the two points of impact of the engine bonnet as defined previously shall be measured.

3.1.5.8. Horizontal distance between the centre of gravity and the front corner of the engine bonnet (L₇) U.K.

The distance from the point of impact of the engine bonnet, as defined previously, to the centre of gravity shall be measured.

3.1.5.9. Height of the front-axle pivot point (H₀) U.K.

[F1 The vertical distance between the centre of the front-axle pivot point to the centre of axle of the front tyres or tracks ( H ₀₁ ) shall be included in the manufacturer's technical report and shall be checked.

The vertical distance from the centre of the front tyres or tracks axle to the ground plane ( H ₀₂ ) shall be measured (Figure 6.8).]

The height of the front-axle pivot (H₀) is the sum of both previous values.

[F1 3.1.5.10. Rear track width ( S ) U.K.

The minimum rear track width fitted with tyres or tracks of the largest size, as specified by the manufacturer, shall be measured (Figure 6.9).

3.1.5.11. Rear tyre or track width ( B ₀ ) U.K.

The distance between the outer and the inner vertical planes of a rear tyre or track in its upper part shall be measured (Figure 6.9).]

3.1.5.12. Front axle swinging angle (D₀) U.K.

The largest angle defined by the swinging of the front axle from the horizontal position to the maximum deflection shall be measured on both sides of the axle, taking into account any end-stroke shock absorber. The maximum angle measured shall be used.

3.1.5.13. Tractor Mass U.K.

The tractor mass shall be determined according to the conditions specified in section 1.7.1.

3.2. Conditions for testing the strength of protective structures and of their attachment to tractors U.K.

3.2.1. General requirements U.K.

3.2.1.1. Test purposes U.K.

Tests made using special rigs are intended to simulate such loads as are imposed on a protective structure, when the tractor overturns. These tests enable observations to be made on the strength of the protective structure and any brackets attaching it to the tractor and any parts of the tractor which transmit the test load.

3.2.1.2. Test methods U.K.

Tests may be performed in accordance with the static procedure or the dynamic procedure (see Annex A). The two methods are deemed equivalent.

3.2.1.3. General rules governing preparation for tests U.K.

3.2.1.3.1. The protective structure must conform to the series production specifications. It shall be attached in accordance with the manufacturer’s recommended method to one of the tractors for which it is designed. U.K.

Note: A complete tractor is not required for the static strength test; however, the protective structure and parts of the tractor to which it is attached represent an operating installation, hereinafter referred to as ‘the assembly’. U.K.

3.2.1.3.2. For both the static test and the dynamic test the tractor as assembled (or the assembly) must be fitted with all series production components which may affect the strength of the protective structure or which may be necessary for the strength test. U.K.

Components which may create a hazard in the clearance zone must also be fitted on the tractor (or the assembly) so that they may be examined to see whether the requirements of the Acceptance Conditions in 3.2.3 have been fulfilled.

All components of the tractor or the protective structure including weather protective must be supplied or described on drawings.

3.2.1.3.3. For the strength tests, all panels and detachable non-structural components must be removed so that they may not contribute to the strengthening of the protective structure. U.K.

[F1 3.2.1.3.4. The track width must be adjusted so that the protective structure will, as far as possible, not be supported by the tyres or tracks during the strength tests. If these tests are conducted in accordance with the static procedure, the wheels or tracks may be removed.] U.K.

3.2.2. Tests U.K.

3.2.2.1. Sequence of tests according to the Static Procedure U.K.

The sequence of tests, without prejudice to the additional tests mentioned in sections 3.3.1.6, and 3.3.1.7 is as follows:

(1)

loading at the rear of the structure

(see 3.3.1.1);

(2)

rear crushing test

(see 3.3.1.4);

(3)

loading at the front of the structure

(see 3.3.1.2);

(4)

loading at the side of the structure

(see 3.3.1.3);

(5)

crushing at the front of the structure

(see 3.3.1.5).

3.2.2.2. General requirements U.K.

3.2.2.2.1. If, during the test, any part of the tractor restraining equipment breaks or moves, the test shall be restarted. U.K.

3.2.2.2 2. No repairs or adjustments of the tractor or protective structure may be carried out during the tests. U.K.

3.2.2.2.3. The tractor gear box shall be in neutral and the brakes off during the tests. U.K.

[F1 3.2.2.2.4. If the tractor is fitted with a suspension system between the tractor body and the wheels or tracks, it shall be blocked during the tests.] U.K.

3.2.2.2.5. The side chosen for application of the first load on the rear of the structure shall be that which, in the opinion of the testing authorities, will result in the application of the series of loads under the most unfavourable conditions for the structure. The lateral load and the rear load shall be applied on both sides of the longitudinal median plane of the protective structure. The front load shall be applied on the same side of the longitudinal median plane of the protective structure as the lateral load. U.K.

3.2.3. Acceptance conditions U.K.

3.2.3.1. A protective structure is regarded as having satisfied the strength requirements if it fulfils the following conditions: U.K.

3.2.3.1.1.

After each part-test it must be free from cracks or tears within the meaning of section 3.3.2.1 or

3.2.3.1.2.

If, during one of the crushing tests, significant cracks or tears appear, an additional test, in accordance with section 3.3.1.7, must be applied immediately after the crushing which caused cracks or tears to appear;

3.2.3.1.3.

during the tests other than the overload test, no part of the protective structure must enter the clearance zone as defined in 1.6;

3.2.3.1.4.

during the tests other than the overload test, all parts of the clearance zone shall be secured by the structure, in accordance with 3.3.2.2;

3.2.3.1.5.

during the tests the protective structure must not impose any constraints on the seat structure;

3.2.3.1.6.

the elastic deflection, measured in accordance with 3.3.2.4 shall be less than 250 mm.

3.2.3.2. There shall be no accessories presenting a hazard for the driver. There shall be no projecting part or accessory which is liable to injure the driver should the tractor overturn, or any accessory or part which is liable to trap him — for example by the leg or the foot — as a result of the deflections of the structure. U.K.

3.2.4. [Not applicable] U.K.

3.2.5. Test apparatus and equipment U.K.

3.2.5.1. Static testing rig U.K.

3.2.5.1.1. The static testing rig must be designed in such a way as to permit thrusts or loads to be applied to the protective structure. U.K.

3.2.5.1.2. Provision must be made so that the load can be uniformly distributed normal to the direction of loading and along a flange having a length of one of the exact multiples of 50 between 250 and 700 mm. The stiff beam shall have a vertical face dimension of 150 mm. The edges of the beam in contact with the protective structure shall be curved with a maximum radius of 50 mm. U.K.

3.2.5.1.3. The pad shall be capable of being adjusted to any angle in relation to the load direction, in order to be able to follow the angular variations of the structure’s load-bearing surface as the structure deflects. U.K.

3.2.5.1.4. Direction of the force (deviation from horizontal and vertical): U.K.

• at start of test, under zero load: ± 2°;

• during test, under load: 10° above and 20° below the horizontal. These variations must be kept to a minimum.

3.2.5.1.5. The deflection rate shall be sufficiently slow, less than 5 mm/s so that the load may at all moments be considered as static. U.K.

3.2.5.2. Apparatus for measuring the energy absorbed by the structure U.K.

3.2.5.2.1. The force versus deflection curve shall be plotted in order to determine the energy absorbed by the structure. There is no need to measure the force and deflection at the point where the load is applied to the structure; however, force and deflection shall be measured simultaneously and co-linearly. U.K.

3.2.5.2.2. The point of origin of deflection measurements shall be selected so as to take account only of the energy absorbed by the structure and/or by the deflection of certain parts of the tractor. The energy absorbed by the deflection and/or the slipping of the anchoring must be ignored. U.K.

3.2.5.3. Means of anchoring the tractor to the ground U.K.

3.2.5.3.1. Anchoring rails with the requisite track width and covering the necessary area for anchoring the tractor in all the cases illustrated must be rigidly attached to a non-yielding base near the testing rig. U.K.

3.2.5.3.2. The tractor must be anchored to the rails by any suitable means (plates, wedges, wire ropes, jacks, etc.) so that it cannot move during the tests. This requirement shall be checked during the test, by means of the usual devices for measuring length. U.K.

If the tractor moves, the entire test shall be repeated, unless the system for measuring the deflections taken into account for plotting the force versus deflection curve is connected to the tractor.

[F1 3.2.5.4. Crushing rig U.K.

A rig as shown in Figure 6.10 shall be capable of exerting a downward force on a protective structure through a rigid beam approximately 250 mm wide, connected to the load-applying mechanism by means of universal joints. Suitable axle stands must be provided so that the tractor tyres or tracks do not bear the crushing force.]

3.2.5.5. Other measuring apparatus U.K.

The following measuring devices are also needed:

3.2.5.5.1.

A device for measuring the elastic deflection (the difference between the maximum momentary deflection and the permanent deflection, see figure 6.11).

3.2.5.5.2.

A device for checking that the protective structure has not entered the clearance zone and that the latter has remained within the structure’s protection during the test (section 3.3.2.2).

3.3. Static test procedure U.K.

3.3.1. Loading and crushing tests U.K.

3.3.1.1. Loading at the rear U.K.

3.3.1.1.1. The load shall be applied horizontally in a vertical plane parallel to the tractor’s median plane. U.K.

The load application point shall be that part of the roll-over protective structure likely to hit the ground first in a rearward overturning accident, normally the upper edge. The vertical plane in which the load is applied shall be located at a distance of 1/6 of the width of the top of the protective structure inwards from a vertical plane, parallel to the median plane of the tractor, touching the outside extremity of the top of the protective structure.

If the structure is curved or protruding at this point, wedges enabling the load to be applied thereon shall be added, without thereby reinforcing the structure.

3.3.1.1.2. The assembly shall be lashed to the ground as described in 3.2.6.3. U.K.

3.3.1.1.3. The energy absorbed by the protective structure during the test shall be at least: U.K.

3.3.1.1.4. For tractors with a reversible driver’s position (reversible seat and steering wheel), the same formula shall apply. U.K.

3.3.1.2. Loading at the front U.K.

3.3.1.2.1. The load shall be applied horizontally, in a vertical plane parallel to the tractor’s median plane and located at a distance of 1/6 of the width of the top of the protective structure inwards from a vertical plane, parallel to the median plane of the tractor, touching the outside extremity of the top of the protective structure. U.K.

The load application point shall be that part of the roll-over protective structure likely to hit the ground first if the tractor overturned sideways while travelling forward, normally the upper edge.

If the structure is curved or protruding at this point, wedges enabling the load to be applied thereon shall be added, without thereby reinforcing the structure.

3.3.1.2.2. The assembly shall be lashed to the ground as described in 3.2.5.3. U.K.

3.3.1.2.3. The energy absorbed by the protective structure during the test shall be at least: U.K.

3.3.1.2.4. For tractors with a reversible driver’s position (reversible seat and steering wheel), the energy shall be whichever is the higher of the above or either of the following as selected: U.K.

or

3.3.1.3. Loading from the side U.K.

3.3.1.3.1. The side loading shall be applied horizontally, in a vertical plane perpendicular to the tractor’s median plane. The load application point shall be that part of the roll-over protective structure likely to hit the ground first in a sideways overturning accident, normally the upper edge. U.K.

3.3.1.3.2. The assembly shall be lashed to the ground as described in 3.2.5.3. U.K.

3.3.1.3.3. The energy absorbed by the protective structure during the test shall be at least: U.K.

3.3.1.3.4. For tractors with a reversible driver’s position (reversible seat and steering wheel), the energy shall be whichever is higher of the above or the following: U.K.

3.3.1.4. Crushing at the rear U.K.

The beam shall be positioned over the rear uppermost structural member(s) and the resultant of crushing forces shall be located in the tractor’s median plane. A force F_v shall be applied where:

The force F_v shall be maintained for five seconds after cessation of any visually detectable movement of the protective structure.

Where the rear part of the protective structure roof will not sustain the full crushing force, the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the rear of the tractor capable of supporting the tractor when overturned.

The force shall then be removed, and the crushing beam repositioned over that part of the protective structure which would support the tractor when completely overturned. The crushing force F_v shall then be applied again.

3.3.1.5. Crushing at the front U.K.

The beam shall be positioned across the front uppermost structural member(s) and the resultant of crushing forces shall be located in the tractor’s median plane. A force F_v shall be applied where:

The force F_v shall be maintained for five seconds after the cessation of any visually detectable movement of the protective structure.

Where the front part of the protective structure roof will not sustain the full crushing force, the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the front of the tractor capable of supporting the tractor when overturned.

The force shall then be removed, and the crushing beam repositioned over that part of the protective structure which would support the tractor when completely overturned. The crushing force F_v shall then be applied again.

3.3.1.6. Additional overload test (figures 6.14 to 6.16) U.K.

An overload test shall be carried out in all cases where the force decreases by more than 3 per cent during the last 5 per cent of the deflection reached when the energy required is absorbed by the structure (see figure 6.15).

The overload test involves the gradual increase of the horizontal load by increments of 5 per cent of the initial energy requirement up to a maximum of 20 per cent of energy added (see figure 6.16).

The overload test is satisfactory if, after each increase by 5, 10 or 15 per cent in the energy required, the force decreases by less than 3 per cent for a 5 per cent increment and remains greater than 0,8 F_max.

The overload test is satisfactory if, after the structure has absorbed 20 per cent of the added energy, the force exceeds 0,8 F_max.

Additional cracks or tears and/or entry into or lack of protection of the clearance zone due to elastic deflection are permitted during the overload test. However, after the removal of the load, the structure shall not enter the clearance zone, which shall be completely protected.

3.3.1.7. Additional crushing tests U.K.

If cracks or tears which cannot be considered as negligible appear during a crushing test, a second, similar crushing, but with a force of 1,2 F_v shall be applied immediately after the crushing test which caused the cracks or tears to appear.

3.3.2. Measurements to be made U.K.

3.3.2.1. Fractures and cracks U.K.

After each test all structural members, joints and attachment systems shall be visually examined for fractures or cracks, any small cracks in unimportant parts being ignored.

3.3.2.2. Entry into the clearance zone U.K.

During each test the protective structure shall be examined to see whether any part of it has entered the clearance zone as defined in 1.6 above.

Furthermore, the clearance zone shall not be outside the protection of the protective structure. For this purpose, it shall be considered to be outside the protection of the structure if any part of it would come in contact with flat ground if the tractor overturned towards the direction from which the test load is applied. [F1 For estimating this, the front and rear tyres or tracks and track width setting shall be the smallest standard fitting specified by the manufacturer.]

3.3.2.3. Rear hard fixture tests U.K.

If the tractor is fitted with a rigid section, a housing or other hard fixture placed behind the driver’s seat, this fixture shall be regarded as a protective point, in the event of sideways or rear overturning. This hard fixture placed behind the driver’s seat shall be capable of withstanding, without breaking or entering the clearance zone, a downward force F_i, where:

applied perpendicularly to the top of the frame in the central plane of the tractor. The initial angle of application of force shall be 40° calculated from a parallel to the ground as shown in figure 6.12. The minimum width of this rigid section shall be 500 mm (see figure 6.13).

In addition, it shall be sufficiently rigid and firmly attached to the rear of the tractor.

3.3.2.4. Elastic deflection under side loading U.K.

The elastic deflection shall be measured (810 + a_v ) mm above the Seat Index Point, in the vertical plane in which the load is applied. For this measurement, any apparatus similar to that illustrated in figure 6.11 shall be used.

3.3.2.5. Permanent deflection U.K.

After the final crushing test the permanent deflection of the protective structure shall be recorded. For this purpose, before the start of the test, the position of the main roll-over protective structure members in relation to the Seat Index Point shall be recorded.

3.4. Extension to other tractor models U.K.

3.4.1. [Not applicable] U.K.

3.4.2. Technical extension U.K.

When technical modifications occur on the tractor, the protective structure or the method of attachment of the protective structure to the tractor, the testing station that has carried out the original test can issue a ‘technical extension report’ if the tractor and protective structure satisfied preliminary tests of lateral stability and non-continuous rolling as defined in 3.1.3 and 3.1.4 and if the rear hard fixture as described in paragraph 3.3.2.3., when fitted, has been tested in accordance with the procedure described in this paragraph (except 3.4.2.2.4) in the following cases:

3.4.2.1. Extension of the structural test results to other models of tractors U.K.

The impact or loading and crushing tests need not be carried out on each model of tractor, provided that the protective structure and tractor comply with the conditions referred to hereunder in 3.4.2.1.1 to 3.4.2.1.5.

3.4.2.1.1.

The structure (including rear hard fixture) shall be identical to the one tested;

3.4.2.1.2.

The required energy shall not exceed the energy calculated for the original test by more than 5 per cent;

3.4.2.1.3.

The method of attachment and the tractor components to which the attachment is made shall be identical;

3.4.2.1.4.

Any components such as mud-guards and bonnet that may provide support for the protective structure shall be identical;

3.4.2.1.5.

The position and critical dimensions of the seat in the protective structure and the relative position of the protective structure on the tractor shall be such that the clearance zone would have remained within the protection of the deflected structure throughout all tests (this shall be checked by using the same reference of clearance zone as in the original test report, respectively Seat Reference Point [SRP] or Seat Index Point [SIP]).

3.4.2.2. Extension of the structural test results to modified models of the protective structure U.K.

This procedure has to be followed when the provisions of section 3.4.2.1 are not fulfilled, it may not be used when the method of attachment of the protective structure to the tractor does not remain of the same principle (e.g. rubber supports replaced by a suspension device):

3.4.2.2.1.

Modifications having no impact on the results of the initial test (e.g. weld attachment of the mounting plate of an accessory in a non-critical location on the structure), addition of seats with different SIP location in the protective structure (subject to checking that the new clearance zone(s) remain(s) within the protection of the deflected structure throughout all tests).

3.4.2.2.2.

Modifications having a possible impact on the results of the original test without calling into question the acceptability of the protective structure (e.g. modification of a structural component, modification of the method of attachment of the protective structure to the tractor). A validation test can be carried out and the test results will be drafted in the extension report.

The following limits for this type extension are fixed:

3.4.2.2.2.1.

no more than 5 extension may be accepted without a validation test;

3.4.2.2.2.2.

the results of the validation test will be accepted for extension if all the acceptance conditions of this Annex are fulfilled and:

• if the deflection measured after each impact test does not deviate from the deflection measured after each impact test in the original test report by more than ± 7 % (in the case of dynamic tests);

• if the force measured when the required energy level has been reached in the various horizontal load tests does not deviate from the force measured when the required energy has been reached in the original test by more than ± 7 % and the deflection measured⁽⁴⁾ when the required energy level has been reached in the various horizontal load tests does not deviate from the deflection measured when the required energy has been reached in the original test report by more than ± 7 % (in the case of static tests).

3.4.2.2.2.3.

more than one protective structure modification may be included in a single extension report if they represent different options of the same protective structure, but only one validation test can be accepted in a single extension report. The options not tested shall be described in a specific section of the extension report.

3.4.2.2.3.

Increase of the reference mass declared by the manufacturer for a protective structure already tested. If the manufacturer wants to keep the same approval number it is possible to issue an extension report after having carried out a validation test (the limits of ± 7 % specified in 3.4.2.2.2.2 are not applicable in such a case).

3.4.2.2.4.

Modification of the rear hard fixture or addition of a new rear hard fixture. It has to be checked that the clearance zone remains within the protection of the deflected structure throughout all test taking into account the new or modified rear hard fixture. A validation of the rear hard fixture consisting in the test described in 3.3.2.3 has to be carried out and the test results will be drafted in the extension report.

3.5. [Not applicable] U.K.

3.6. Cold weather performance of protective structures U.K.

3.6.1. If the protective structure is claimed to have properties resistant to cold weather embrittlement, the manufacturer shall give details that shall be included in the report. U.K.

3.6.2. The following requirements and procedures are intended to provide strength and resistance to brittle fracture at reduced temperatures. It is suggested that the following minimum material requirements shall be met in judging the protective structure’s suitability at reduced operating temperatures in those countries requiring this additional operating protection. U.K.

3.6.2.1. Bolts and nuts used to attach the protective structure to the tractor and used to connect structural parts of the protective structure shall exhibit suitable controlled reduced temperature toughness properties. U.K.

3.6.2.2. All welding electrodes used in the fabrication of structural members and mounts shall be compatible with the protective structure material as given in 3.6.2.3 below. U.K.

3.6.2.3. Steel materials for structural members of the protective structure shall be of controlled toughness material exhibiting minimum Charpy V-Notch impact energy requirements as shown in Table 6.1. Steel grade and quality shall be specified in accordance with ISO 630:1995. U.K.

Steel with an as-rolled thickness less than 2,5 mm and with a carbon content less than 0,2 per cent is considered to meet this requirement.

Structural members of the protective structure made from materials other than steel shall have equivalent low temperature impact resistance.

3.6.2.4. When testing the Charpy V-Notch impact energy requirements, the specimen size shall be no less than the largest of the sizes stated in Table 6.1 that the material will permit. U.K.

3.6.2.5. The Charpy V-Notch tests shall be made in accordance with the procedure in ASTM A 370-1979, except for specimen sizes that shall be in accordance with the dimensions given in Table 6.1. U.K.

3.6.2.6. Alternatives to this procedure are the use of killed or semi-killed steel for which an adequate specification shall be provided. Steel grade and quality shall be specified in accordance with ISO 630:1995, Amd 1:2003. U.K.

3.6.2.7. Specimens are to be longitudinal and taken from flat stock, tubular or structural sections before forming or welding for use in the protective structure. Specimens from tubular or structural sections are to be taken from the middle of the side of greatest dimension and shall not include welds. U.K.

Table 6.1. Minimum Charpy V-notch impact energies U.K.

a Indicates preferred size. Specimen size shall be no less than largest preferred size that the material permits.
b The energy requirement at – 20 °C is 2,5 times the value specified for – 30 °C. Other factors affect impact energy strength, i.e. direction of rolling, yield strength, grain orientation and welding. These factors shall be considered when selecting and using steel.
Specimen size	Energy at	Energy at
	– 30 °C	– 20 °C
mm	J	Jb
10 × 10a	11	27,5
10 × 9	10	25
10 × 8	9,5	24
10 × 7,5a	9,5	24
10 × 7	9	22,5
10 × 6,7	8,5	21
10 × 6	8	20
10 × 5a	7,5	19
10 × 4	7	17,5
10 × 3,5	6	15
10 × 3	6	15
10 × 2,5a	5,5	14

3.7. [Not applicable] U.K.

Figure 6.1 U.K. Clearance zone U.K.Dimensions in mm U.K.

Figure 6.1.a Side view Cross-section through the reference plane	Figure 6.1.b Rear view
Figure 6.1.c View from above

1

–

Reference line

2

–

Seat index point

3

–

Reference plane

Figure 6.2

Clearance zone for tractors with reversible seat and steering wheel

Figure 6.3

Flow diagram for determining the continuous roll-over behaviour of a laterally overturning tractor with a front mounted roll-over protective structure (ROPS)

Version B1

:

Point of impact of ROPS behind longitudinally unstable equilibrium point

Version B2

:

Point of impact of ROPS near longitudinally unstable equilibrium point

Version B3

:

Point of impact of ROPS in front of longitudinally unstable equilibrium point

Figure 6.4

Rig for testing anti-roll properties on 1/1,5 gradient

[F1 Figure 6.5 Data required for calculating the overturn of a tractor with triaxial rolling behaviour U.K.

Note: D2 and D3 should be measured under full axle load.] U.K.

Figures 6.6.a, 6.6.b, 6.6.c Horizontal distance between the centre of gravity and the leading point of intersection of the protective structure (L₆) U.K.

Figure 6.7

Determination of points of impact for measurement of width of protective structure (B₆) and height of engine bonnet (H₇)

Figure 6.8

Height of the front-axle pivot point (H₀)

Figure 6.9

Rear track width (S) and Rear tyre width (B₀)

Figure 6.10

Example of crushing rig of the tractor

Figure 6.11

Example of apparatus for measuring elastic deflection

1

–

Permanent deflection

2

–

Elastic deflection

3

–

Total deflection (permanent plus elastic)

Figure 6.12

Simulated ground line

Figure 6.13

Minimum width of the rear hard fixture

Figure 6.14

Force / deflection curve

Overload test not necessary

Notes: U.K.

1. Locate F_a in relation to 0,95 D’ U.K.

2. Overload test not necessary as F_a ≤ 1,03 F’ U.K.

Figure 6.15

Force / deflection curve

Overload test necessary

Notes: U.K.

1. Locate Fa in relation to 0,95 D’ U.K.

2. Overload test necessary as Fa > 1,03 F’ U.K.

3. Overload test performance satisfactory as Fb > 0,97 F’ and Fb > 0,8 F_max. U.K.

Figure 6.16

Force / deflection curve

Overload test to be continued

Notes: U.K.

1. Locate Fa in relation to 0,95 D’ U.K.

2. Overload test necessary as F_a > 1,03 F’ U.K.

3. F_b < 0,97 F’ therefore further overload necessary U.K.

4. F_c < 0,97 F_b therefore further overload necessary U.K.

5. F_d < 0,97 F_c therefore further overload necessary U.K.

6. Overload test performance satisfactory, if F_e > 0,8 F_max U.K.

7. Failure at any stage when load drops below 0,8 F_max. U.K.

B2. ALTERNATIVE ‘DYNAMIC’ TEST PROCEDURE U.K.

This section sets out the Dynamic Testing Procedure alternative to the static test procedure set out in section B1.

4. Rules and directions U.K.

4.1. Prior conditions for the strength tests U.K.

See requirements stated for static testing.

4.2. Conditions for testing the strength of protective structures and of their attachment to tractors U.K.

4.2.1. General requirements U.K.

See requirements stated for static testing.

4.2.2. Tests U.K.

4.2.2.1. Sequence of tests according to the Dynamic Procedure U.K.

The sequence of tests, without prejudice to the additional tests mentioned in sections 4.3.1.6 and 4.3.1.7 is as follows:

(1)

impact at the rear of the structure

(see 4.3.1.1);

(2)

rear crushing test

(see 4.3.1.4);

(3)

impact at the front of the structure

(see 4.3.1.2);

(4)

impact at the side of the structure

(see 4.3.1.3);

(5)

crushing at the front of the structure

(see 4.3.1.5).

4.2.2.2. General requirements U.K.

4.2.2.2.1. If, during the test, any part of the tractor restraining equipment breaks or moves, the test shall be restarted. U.K.

4.2.2.2.2. No repairs or adjustments of the tractor or protective structure may be carried out during the tests. U.K.

4.2.2.2.3. The tractor gear box shall be in neutral and the brakes off during the tests. U.K.

4.2.2.2.4. If the tractor is fitted with a suspension system between the tractor body and the wheels, it shall be blocked during the tests. U.K.

4.2.2.2.5. The side chosen for application of the first impact on the rear of the structure shall be that which, in the opinion of the testing authorities, will result in the application of the series of impacts or loads under the most unfavourable conditions for the structure. The lateral impact and the rear impact shall be applied on both sides of the longitudinal median plane of the protective structure. The front impact shall be applied on the same side of the longitudinal median plane of the protective structure as the lateral impact. U.K.

4.2.3. Acceptance conditions U.K.

4.2.3.1. A protective structure is regarded as having satisfied the strength requirements if it fulfils the following conditions: U.K.

4.2.3.1.1.

After each part-test it must be free from cracks or tears within the meaning of section 4.3.2.1 or

4.2.3.1.2.

If, during one of the tests, significant cracks or tears appear, an additional test, as defined in sections 4.3.1.6 or 4.3.1.7, must be applied immediately after the impact or the crushing test which caused cracks or tears to appear;

4.2.3.1.3.

during the tests other than the overload test, no part of the protective structure must enter the clearance zone as defined in 1.6;

4.2.3.1.4.

during the tests other than the overload test, all parts of the clearance zone shall be secured by the structure, in accordance with 4.3.2.2;

4.2.3.1.5.

during the tests the protective structure must not impose any constraints on the seat structure;

4.2.3.1.6.

the elastic deflection, measured in accordance with 4.3.2.4 shall be less than 250 mm.

4.2.3.2. There shall be no accessories presenting a hazard for the driver. There shall be no projecting part or accessory which is liable to injure the driver should the tractor overturn, or any accessory or part which is liable to trap him — for example by the leg or the foot — as a result of the deflections of the structure. U.K.

4.2.4. [Not applicable] U.K.

4.2.5. Apparatus and equipment for dynamic tests U.K.

4.2.5.1. Pendulum block U.K.

4.2.5.1.1. A block acting as a pendulum must be suspended by two chains or wire ropes from pivot points not less than 6 m above the ground. Means must be provided for adjusting independently the suspended height of the block and the angle between the block and the supporting chains or wire ropes U.K.

4.2.5.1.2. The mass of the pendulum block must be 2 000 ± 20 kg excluding the mass of the chains or wire ropes which themselves must not exceed 100 kg. The length of the sides of the impact face must be 680 ± 20 mm (see figure 6.26). The block must be filled in such a way that the position of its centre of gravity is constant and coincides with the geometrical centre of the parallelepiped. U.K.

4.2.5.1.3. The parallelepiped must be connected to the system which pulls it backwards by an instantaneous release mechanism which is so designed and located as to enable the pendulum block to be released without causing the parallelepiped to oscillate about its horizontal axis perpendicular to the pendulum’s plane of oscillation. U.K.

4.2.5.2. Pendulum supports U.K.

The pendulum pivot points must be rigidly fixed so that their displacement in any direction does not exceed 1 per cent of the height of fall.

4.2.5.3. Lashings U.K.

4.2.5.3.1. Anchoring rails with the requisite track width and covering the necessary area for lashing the tractor in all the cases illustrated (see figures 6.23, 6.24 and 6.25) must be rigidly attached to a non-yielding base beneath the pendulum. U.K.

4.2.5.3.2. The tractor shall be lashed to the rails by means of wire rope with round strand, fibre core, construction 6 × 19 in accordance with ISO 2408:2004 and a nominal diameter of 13 mm. The metal strands must have an ultimate tensile strength of 1 770 MPa. U.K.

4.2.5.3.3. The central pivot of an articulated tractor shall be supported and lashed down as appropriate for all tests. For the lateral impact test, the pivot shall also be propped from the side opposite the impact. The front and rear wheels need not be in line if this facilitates the attachment of the wire ropes in the appropriate manner. U.K.

4.2.5.4. Wheel prop and beam U.K.

4.2.5.4.1. A softwood beam of 150 mm square shall be used as a prop for the wheels during the impact tests (see figures 6.27, 6.28 and 6.29). U.K.

4.2.5.4.2. During the lateral impact tests, a softwood beam shall be clamped to the floor to brace the rim of the wheel opposite the side of impact (see figure 6.29). U.K.

4.2.5.5. Props and lashings for articulated tractors U.K.

4.2.5.5.1. Additional props and lashings must be used for articulated tractors. Their purpose is to ensure that the section of the tractor on which the protective structure is fitted is as rigid as that of a non-articulated tractor. U.K.

4.2.5.5.2. Additional specific details are given in the section 4.3.1 for the impact and crushing tests. U.K.

4.2.5.6. Tyre pressures and deflections U.K.

4.2.5.6.1. The tractor tyres shall not be liquid-ballasted and shall be inflated to the pressures prescribed by the tractor manufacturer for field work. U.K.

4.2.5.6.2. The lashings shall be tensioned in each particular case such that the tyres undergo a deflection equal to 12 per cent of the tyre wall height (distance between the ground and the lowest point of the rim) before tensioning. U.K.

4.2.5.7. Crushing rig U.K.

A rig as shown in figure 6.10 shall be capable of exerting a downward force on a protective structure through a rigid beam approximately 250 mm wide connected to the load-applying mechanism by means of universal joints. Suitable axle stands shall be provided so that the tractor tyres do not bear the crushing force.

4.2.5.8. Measuring apparatus U.K.

The following measuring apparatus is needed:

4.2.5.8.1.

device for measuring the elastic deflection (the difference between the maximum momentary deflection and the permanent deflection, (see figure 6.11).

4.2.5.8.2.

device for checking that the protective structure has not entered the clearance zone and that the latter has remained within the structure’s protective during the test (see section 4.3.2.2).

4.3. Dynamic test procedure U.K.

4.3.1. Impact and crushing tests U.K.

4.3.1.1. Impact at the rear U.K.

4.3.1.1.1. The tractor shall be so placed in relation to the pendulum block that the block will strike the protective structure when the impact face of the block and the supporting chains or wire ropes are at an angle with the vertical plane A equal to M/100 with a 20° maximum, unless, during deflection, the protective structure at the point of contact forms a greater angle to the vertical. In this case the impact face of the block shall be adjusted by means of an additional support so that it is parallel to the protective structure at the point of impact at the moment of maximum deflection, the supporting chains or wire ropes remaining at the angle defined above. U.K.

The suspended height of the block shall be adjusted and necessary steps taken so as to prevent the block from turning about the point of impact.

The point of impact is that part of the protective structure likely to hit the ground first in a rearward overturning accident, normally the upper edge. The position of the centre of gravity of the block is 1/6 of the width of the top of the protective structure inwards from a vertical plan parallel to the median plane of the tractor touching the outside extremity of the top of the protective structure.

If the structure is curved or protruding at this point, wedges enabling the impact to be applied thereon must be added, without thereby reinforcing the structure.

4.3.1.1.2. The tractor must be lashed to the ground by means of four wire ropes, one at each end of both axles, arranged as indicated in figure 6.27. The spacing between the front and rear lashing points must be such that the wire ropes make an angle of less than 30° with the ground. The rear lashings must in addition be so arranged that the point of convergence of the two wire ropes is located in the vertical plane in which the centre of gravity of the pendulum block travels. U.K.

The wire ropes must be tensioned so that the tyres undergo the deflections given in 4.2.5.6.2. With the wire ropes tensioned, the wedging beam shall be placed in front of and tight against the rear wheels and then fixed to the ground.

4.3.1.1.3. If the tractor is of the articulated type, the point of articulation shall, in addition, be supported by a wooden block at least 100 mm square and firmly lashed to the ground. U.K.

4.3.1.1.4. The pendulum block shall be pulled back so that the height of its centre of gravity above that at the point of impact is given by one of the following two formulae, to be chosen according to the reference mass of the assembly subjected to the tests: U.K.

for tractor with a reference mass of less than 2 000 kg;

for tractor with a reference mass of more than 2 000 kg.

The pendulum block is then released and strikes the protective structure.

4.3.1.1.5. For tractors with a reversible driver’s position (reversible seat and steering wheel), the same formulae shall apply. U.K.

4.3.1.2. Impact at the front U.K.

4.3.1.2.1. The tractor shall be so placed in relation to the pendulum block that the block will strike the protective structure when the impact face of the block and the supporting chains or wire ropes are at an angle with the vertical plane A equal to M/100 with a 20° maximum, unless, during deflection, the protective structure at the point of contact forms a greater angle to the vertical. In this case the impact face of the block shall be adjusted by means of an additional support so that it is parallel to the protective structure at the point of impact at the moment of maximum deflection, the supporting chains or wire ropes remaining at the angle defined above. U.K.

The suspended height of the pendulum block shall be adjusted and the necessary steps taken so as to prevent the block from turning about the point of impact.

The point of impact is that part of the protective structure likely to hit the ground first if the tractor overturned sideways while travelling forward, normally the upper edge. The position of the centre of gravity of the block is 1/6 of the width of the top of the protective structure inwards from a vertical plane parallel to the median plane of the tractor touching the outside extremity of the top of the protective structure.

If the structure is curved or protruding at this point, wedges enabling the impact to be applied thereon must be added, without thereby reinforcing the structure.

4.3.1.2.2. The tractor must be lashed to the ground by means of four wire ropes, one at each end of both axles, arranged as indicated in figure 6.28. The spacing between the front and rear lashing points must be such that the wire ropes make an angle of less than 30° with the ground. The rear lashings shall in addition be so arranged that the point of convergence of the two wire ropes is located in the vertical plane in which the centre of gravity of the pendulum block travels. U.K.

The wire ropes must be tensioned so that the tyres undergo the deflections given in 4.2.5.6.2. With the wire ropes tensioned, the wedging beam shall be placed behind and tight against the rear wheels and then fixed to the ground.

4.3.1.2.3. If the tractor is of the articulated type, the point of articulation shall, in addition, be supported by a wooden block at least 100 mm square and firmly lashed to the ground. U.K.

4.3.1.2.4. The pendulum block shall be pulled back so that the height of its centre of gravity above that at the point of impact is given by one of the following two formulae, to be chosen according to the reference mass of the assembly subjected to the tests: U.K.

for tractor with a reference mass of less than 2 000 kg.

for tractor with a reference mass of more than 2 000 kg.

The pendulum block is then released and strikes the protective structure.

4.3.1.2.5. For tractors with a reversible driver’s position (reversible seat and steering wheel), the height shall be whichever is greater from the formula applied above and that selected below: U.K.

or

4.3.1.3. Impact from the side U.K.

4.3.1.3.1. The tractor shall be so placed in relation to the pendulum block that the block will strike the protective structure when the impact face of the block and the supporting chains or wire ropes are vertical unless, during deflection, the protective structure at the point of contact forms an angle of less than 20° to the vertical. In this case the impact face of the block shall be adjusted by means of an additional support so that it is parallel to the protective structure at the point of impact at the moment of maximum deflection, the supporting chains or wire ropes remaining vertical on impact. U.K.

The suspended height of the pendulum block shall be adjusted and necessary steps taken so as to prevent the block from turning about the point of impact.

The point of impact shall be that part of the protective structure likely to hit the ground first in a sideways overturning accident.

4.3.1.3.2. The tractor wheels on the side which is to receive the impact must be lashed to the ground by means of wire ropes passing over the corresponding ends of the front and rear axles. The wire ropes must be tensioned to produce the tyre deflection values given in 4.2.5.6.2. U.K.

With the wire ropes tensioned, the wedging beam shall be placed on the ground, pushed tight against the tyres on the side opposite that which is to receive the impact and then fixed to the ground. It may be necessary to use two beams or wedges if the outer sides of the front and rear tyres are not in the same vertical plane. The prop shall then be placed as indicated in figure 6.29 against the rim of the most heavily loaded wheel opposite to the point of impact, pushed firmly against the rim and then fixed at its base. The length of the prop shall be such that it makes an angle of 30° ± 3° with the ground when in position against the rim. In addition, its thickness shall, if possible, be between 20 and 25 times less than its length and between 2 and 3 times less than its width. The props shall be shaped at both ends as shown in the details on figure 6.29.

4.3.1.3.3. If the tractor is of the articulated type, the point of articulation shall in addition be supported by a wooden block at least 100 mm square and laterally supported by a device similar to the prop pushed against the rear wheel as in 4.3.1.3.2. The point of articulation shall then be lashed firmly to the ground. U.K.

4.3.1.3.4. The pendulum block shall be pulled back so that the height of its centre of gravity above that at the point of impact is given by one of the following two formulae, to be chosen according to the reference mass of the assembly subjected to the tests: U.K.

for tractor with a reference mass of less than 2 000 kg.

for tractor with a reference mass of more than 2 000 kg.

4.3.1.3.5. For reversible tractors, the height shall be whichever is greater of the results obtained from the formulae applicable above and below: U.K.

for tractor with a reference mass of less than 2 000 kg.

for tractor with a reference mass of more than 2 000 kg.

The pendulum block is then released and strikes the protective structure.

4.3.1.4. Crushing at the rear U.K.

All provisions are identical to those given in section 3.3.1.4 of Part B1.

4.3.1.5. Crushing at the front U.K.

All provisions are identical to those given in section 3.3.1.5 of Part B1.

4.3.1.6. Additional impact tests U.K.

If cracks or tears which cannot be considered negligible appear during an impact test, a second, similar test, but with a height of fall of:

shall be performed immediately after the impact tests causing these tears or cracks to appear, ‘a’ being the ratio of the permanent deformation (Dp) to the elastic deformation (De):

as measured at the point of impact. The additional permanent deformation due to the second impact shall not exceed 30 per cent of the permanent deformation due to the first impact.

In order to be able to carry out the additional test, it is necessary to measure the elastic deformation during all the impact tests.

4.3.1.7. Additional crushing tests U.K.

If during a crushing test, significant cracks or tears appear, a second, similar, crushing test, but with a force equal to 1,2 F_v shall be performed immediately after the crushing tests which caused these tears or cracks to appear.

4.3.2. Measurements to be made U.K.

4.3.2.1. Fractures and cracks U.K.

After each test all structural members, joints and fastening systems shall be visually examined for fractures or cracks, any small cracks in unimportant parts being ignored.

Any tears caused by the edges of the pendulum weight are to be ignored.

4.3.2.2. Entry into the clearance zone U.K.

During each test the protective structure shall be examined to see whether any part of it has entered the clearance zone round the driving seat as defined in 1.6.

Furthermore, the clearance zone shall not be outside the protection of the protective structure. For this purpose, it shall be considered to be outside the protection of the structure if any part of it would come in contact with flat ground if the tractor overturned towards the direction from which the test load is applied. For estimating this, the front and rear tyres and track width setting shall be the smallest standard fitting specified by the manufacturer.

4.3.2.3. Rear hard fixture tests U.K.

If the tractor is fitted with a rigid section, a housing or other hard fixture placed behind the driver’s seat, this fixture shall be regarded as a protective point, in the event of sideways or rear overturning. This hard fixture placed behind the driver’s seat shall be capable of withstanding, without breaking or entering the clearance zone, a downward force F_i where:

applied perpendicularly to the top of the frame in the central plane of the tractor. The initial angle of application of force shall be 40° calculated from a parallel to the ground as shown in figure 6.12. The minimum width of this rigid section shall be 500 mm (see figure 6.13).

In addition, it shall be sufficiently rigid and firmly attached to the rear of the tractor.

4.3.2.4. Elastic deflection (under side impact) U.K.

The elastic deflection is measured (810 + a_v ) mm above the index point, in the vertical plane passing through the point of impact. For this measurement, apparatus similar to that illustrated in figure 6.11 shall be used.

4.3.2.5. Permanent deflection U.K.

After the final crushing test, the permanent deflection of the protective structure shall be recorded. For this purpose, before the start of the test, the position of the main roll-over protective structure members in relation to the Seat Index Point shall be used.

4.4. Extension to other tractor models U.K.

All provisions are identical to those given in section 3.4 of section B1 to this Annex.

4.5. [Not applicable] U.K.

4.6. Cold weather performance of protective structures U.K.

All provisions are identical to those given in section 3.6 of section B1 to this Annex.

4.7. [Not applicable] U.K.

Figure 6.26

Pendulum block and its suspending chains or wire ropes

Figure 6.27

Example of tractor lashing (rear impact)

Figure 6.28

Example of tractor lashing (front impact)

Figure 6.29

Example of tractor lashing (side impact)

B3. REQUIREMENTS FOR FOLDABLE ROPS PERFORMANCE U.K.

5.1. Scope U.K.

This procedure provides minimum performance and tests requirements for front mounted foldable ROPS

5.2. Explanation of terms used in the performance testing: U.K.

5.2.1.

hand-operated foldable ROPS is a front mounted dual pillar protective structure with hand raising/lowering directly managed by the operator (with or without partial assistance).

5.2.2.

automatic foldable ROPS is a front mounted dual pillar protective structure with full assisted raising/lowering operations.

5.2.3.

locking system is a device fitted to lock, by hand or automatically, the ROPS in the raised or lowered positions.

5.2.4.

grasping area is defined by the manufacturer as a portion of the ROPS and/or additional handle fitted to the ROPS where the operator is allowed to carry out the raising/lowering operations.

5.2.5.

accessible part of the grasping area is intended as the area where the ROPS is handled by the operator during the raising/lowering operations. This area shall be defined with regard to the geometric centre of cross sections of the grasping area.

5.2.6.

pinching point is a dangerous point where parts move in relation to each other or to fixed parts in such a way as may cause persons or certain parts of their bodies to be pinched.

5.2.7.

shear point is a dangerous point where parts move along each other or along other parts in such a way as may cause persons or certain parts of their bodies to be pinched or shorn

5.3. Hand-operated foldable ROPS U.K.

5.3.1. Prior conditions for the test U.K.

The manual handling shall be done by a standing operator with one or more grasps on grasping area of the roll-bar. This area has to be designed without sharp edges, sharp angles and rough surfaces likely to cause injury to the operator.

The grasping area shall be clearly and permanently identified (Figure 6.20).

This area could be on one or both sides of the tractor and could be a structural part of the roll-bar or additional handles. In this grasping area the manual handling to raise or lower the roll-bar shall not create shearing, pinching or uncontrollable movement hazards to the operator (Additional requirement).

Three accessible zones with different amount of allowed force are defined with respect to horizontal plane of the ground and the vertical planes tangent to the outer parts of the tractor that limit the position or the displacement of the operator (Figure 6.21).

Zone I

:

comfort zone

Zone II

:

accessible zone without forward leaning of the body

Zone III

:

accessible zone with forward leaning of the body

The position and the movement of the operator are limited by obstacles. These are parts of the tractor and are defined by vertical planes tangent to the external edges of the obstacle.

If the operator needs to move the feet during the manual handling of the roll-bar a displacement is allowed either within a parallel plane to the roll-bar trajectory or within just one more parallel plane to the previous one so as to overcome an obstacle. The overall displacement shall be considered as a combination of straits lines parallel and perpendicular to the roll-bar trajectory. A perpendicular displacement is accepted provided that the operator comes closer to the roll-bar. The accessible area shall be considered as the envelope of the different accessible zones (Figure 6.22).

The tractor must be fitted with tyres having the greatest diameter indicated by the manufacturer and the smallest cross-section for tyres of that diameter. The tyres must be inflated to the pressure recommended for field work.

The rear wheels must be set to the narrowest track width; the front wheels must be set as closely as possible to the same track width. If it is possible to have two front track settings which differ equally from the narrowest rear track setting, the wider of these two front track settings must be selected. [F2 In the case of a tractor fitted with tracks, the manufacturer shall define the tracks setting.]

5.3.2. Test procedure U.K.

Aim of the test is to measure the force necessary to raise or lower the roll-bar. The test will be carried out in static condition: no initial movement of the roll-bar. Each measurement of the force necessary to raise or lower the roll-bar shall be made in a direction tangent to the trajectory of the roll-bar and passing through the geometric centre of cross sections of the grasping area.

The grasping area is considered accessible when located within the accessible zones or the envelope of different accessible zones (Figure 6.23).

The force necessary to raise and lower the roll-bar shall be measured in different points that are within the accessible part of the grasping area (Figure 6.24).

The first measure is carried out at the extremity of the accessible part of the grasping area when the roll-bar is fully lowered (Point A). The second is defined according to the position of Point A after rotation of the roll-bar up to the top of the accessible part of the grasping area (Point A’).

If in the second measure the roll-bar is not fully raised, an additional point shall be measured at the extremity of the accessible part of the grasping area when the roll-bar is fully raised (Point B).

If between the first two measures the trajectory of the first point crosses the limit between Zone I and Zone II a measurement shall be made at this crossing point (Point A'').

In order to measure the force in the required points, it is possible either to measure directly the value or to measure the torque needed to raise or lower the roll-bar so as to calculate the force.

5.3.3. Condition of acceptance U.K.

5.3.3.1. Force requirement U.K.

The force acceptable for the actuation of the ROPS depends on the accessible zone as shown in Table 6.2.

Table 6.2

Allowed forces

Zone	I	II	III
Acceptable force (N)	100	75	50

An increase of no more than 25 % of these acceptable forces is allowed when the roll-bar is fully lowered and fully raised.

An increase of no more than 50 % of these acceptable forces is allowed in the lowering operation.

5.3.3.2. Additional requirement U.K.

The manual handling to raise or lower the roll-bar shall not create shearing, pinching or uncontrollable movement hazards to the operator

A pinching point is not considered dangerous for the operator hands part if in the grasping area the safety distances between the roll-bar and fixed parts of the tractor are no less than 100 mm for hand, wrist, fist and 25 mm for finger (ISO 13854:1996). The safety distances shall be checked with respect to the mode of handling foreseen by the manufacturer in the operator’s manual.

5.4. Hand locking system U.K.

The device fitted to lock the ROPS in the upright/lowered position must be designed:

• to be handled by one standing operator and located in one of the accessible zones;

• to be hardly separated from the ROPS (for example captive pins as locking pins or retaining pins);

• to avoid any confusion in the locking operation (the proper location of the pins shall be indicated);

• to avoid unintentional removing or losing of parts.

If the devices employed to lock the ROPS in the upright/lowered position are pins they shall be inserted or removed freely. If to do this there is a need to apply a force on the roll-bar this shall comply with the requirements of points A and B (see point 5.3).

For all other locking devices, they shall be engineered according to an ergonomic approach for what concerns the shape and the force especially avoiding pinching or shearing hazards.

5.5. Preliminary test of automatic locking system U.K.

An automatic locking system fitted on hand-operated foldable ROPS shall be submitted to a preliminary test before the ROPS strength test.

The roll-bar shall be moved from the lower position to the upright locked position and back. These operations correspond to one cycle. 500 cycles shall be completed.

This could be done manually or with the use of external energy (hydraulic, pneumatic or electric actuators). In both cases the force shall be applied within a plane parallel to the trajectory of the roll-bar and passing through the grasping area, the angular speed of the roll-bar shall be roughly constant and less than 20 deg/s.

After the 500 cycles, the force applied when the roll-bar is in the upright position shall not exceed by more than 50 % the allowed force (Table 6.2).

The unlocking of the roll-bar shall be done following the operator manual.

After the completion of the 500 cycles there shall be no maintenance or adjustment on the locking system,

Note 1: The preliminary test could be applied to automatic foldable ROPS systems as well. The test should be carried out before the ROPS strength test. U.K.

Note 2: The preliminary test could be carried out by the manufacturer. In such a case the manufacturer shall provide the test station with a certificate stating that the test has been done according the test procedure and that there were no maintenance or adjustment on the locking system after the completion of the 500 cycles. The test station will check the performance of the device with one cycle from the lower position to the upright locked position and back. U.K.

Figure 6.20

Grasping area

Figure 6.21

Accessible zones

(Dimensions in mm)

Figure 6.22

Envelope of the accessible zones

(Dimensions in mm)

Figure 6.23

Accessible part of the grasping area

Figure 6.24

Points where the force requirement shall be measured

B4. REQUIREMENTS FOR VIRTUAL TESTING U.K.

Computer programme⁽³⁾ (BASIC) for determining the continuous or interrupted roll over behaviour in case of a laterally overturning narrow track tractor with a protective frame mounted in front of the driver’s seat U.K.

Preliminary note: U.K.

The following programme is valid for its calculation methods. Presentation of the printed text as proposed (English language and layout) is indicative; the user will adapt the programme to available printing and other requirements specific to the testing station.

10 CLS

20 REM REFERENCE OF THE PROGRAM COD6ABAS.BAS 08/02/96

30 FOR I = 1 TO 10: LOCATE I, 1, 0: NEXT I

40 COLOR 14, 8, 4

50 PRINT "************************************************************************************"

60 PRINT "* CALCULATION FOR DETERMINING THE NON-CONTINUOUS ROLLING BEHAVIOUR *"

70 PRINT "*OF A LATERAL OVERTURNING NARROW TRACTOR WITH A ROLL-OVER PROTECTIVE *"

80 PRINT "* STRUCTURE MOUNTED IN FRONT OF THE DRIVER’S SEAT *"

90 PRINT "************************************************************************************"

100 A$ = INKEY$: IF A$ = "" THEN 100

110 COLOR 10, 1, 4

120 DIM F(25), C(25), CAMPO$(25), LON(25), B$(25), C$(25), X(6, 7), Y(6, 7), Z(6, 7)

130 DATA 6,10,10,14,14,17,19,21,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19

140 DATA 54,8,47,8,47,12,8,12,29,71,29,71,29,71,29,71,29,71,29,71,29,71,29,71,29

150 DATA 12,30,31,30,31,25,25,25,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9

160 FOR I = 1 TO 25: READ F(I): NEXT

170 FOR I = 1 TO 25: READ C(I): NEXT

180 FOR I = 1 TO 25: READ LON(I): NEXT

190 CLS

200 FOR I = 1 TO 5: LOCATE I, 1, 0: NEXT I

210 PRINT "In case of misprint, push on the enter key up to the last field"

220 PRINT :LOCATE 6, 44: PRINT " TEST NR: ": PRINT

230 LOCATE 8, 29: PRINT " FRONT MOUNTED- PROTECTIVE STRUCTURE:": PRINT

240 PRINT " MAKE: ": LOCATE 10, 40: PRINT " TYPE: ": PRINT

250 LOCATE 12, 29: PRINT " TRACTOR :": PRINT : PRINT " MAKE:"

260 LOCATE 14, 40: PRINT " TYPE: ": PRINT : PRINT

270 PRINT " LOCATION: ": PRINT

280 PRINT " DATE: ": PRINT : PRINT " ENGINEER:"

290 NC = 1: GOSUB 4400

300 PRINT : PRINT : PRINT " In case of misprint, it is possible to acquire the data again"

310 PRINT : INPUT " Do you wish to acquire again the data ? (Y/N)"; Z$

320 IF Z$ = "Y" OR Z$ = "y" THEN 190

330 IF Z$ = "N" OR Z$ = "n" THEN 340

340 FOR I=1 TO 3:LPRINT : NEXT: LPRINT ; " TEST NR: "; TAB(10); CAMPO$(1)

350 LPRINT : LPRINT TAB(24); " FRONT MOUNTED PROTECTIVE STRUCTURE:"

360 LL = LEN(CAMPO$(2) + CAMPO$(3))

370 LPRINT TAB(36 - LL / 2); CAMPO$(2) + " - " + CAMPO$(3) : LPRINT

380 LPRINT TAB(32); " OF THE NARROW TRACTOR": LL = LEN(CAMPO$(4) + CAMPO$(5))

390 LPRINT TAB(36 - LL / 2); CAMPO$(4) + " - " + CAMPO$(5) : LPRINT

400 CLS

410 PRINT "In case of mistype, push on the enter key up to the last field"

420 PRINT

430 FOR I = 1 TO 7: LOCATE I, 1, 0: NEXT

440 LOCATE 8, 1: PRINT " CHARACTERISTIC UNITS:"

450 LOCATE 8, 29: PRINT "LINEAR (m): MASS (kg):MOMENT OF INERTIA (kg×m²):"

460 LOCATE 9, 1: PRINT " ANGLE (radian)"

470 LPRINT : PRINT

480 PRINT "HEIGHT OF COG H1=": LOCATE 11, 29: PRINT""

490 LOCATE 11, 40: PRINT "H. DIST. COG-REAR AXLE L3="

500 LOCATE 11, 71: PRINT""

510 PRINT "H. DIST. COG-FRT AXLE L2=": LOCATE 12, 29: PRINT""

520 LOCATE 12, 40: PRINT "HEIGHT OF THE REAR TYRES D3="

530 LOCATE 12, 71: PRINT""

540 PRINT "HEIGHT OF THE FRT TYRES D2=": LOCATE 13, 29: PRINT""

550 LOCATE 13, 40: PRINT "OVERALL HEIGHT(PT IMPACT) H6="

560 LOCATE 13, 71: PRINT""

570 PRINT "H.DIST.COG-LEAD.PT INTER.L6=": LOCATE 14, 29: PRINT""

580 LOCATE 14, 40: PRINT "PROTECTIVE STRUCT. WIDTH B6="

590 LOCATE 14, 71: PRINT""

600 PRINT "HEIGHT OF THE ENG.B. H7=": LOCATE 15, 29: PRINT""

605 LOCATE 15, 40: PRINT "WIDTH OF THE ENG. B. B7="

610 LOCATE 15, 71: PRINT""

615 PRINT "H.DIST.COG-FRT COR.ENG.B.L7=": LOCATE 16, 29: PRINT""

620 LOCATE 16, 40: PRINT "HEIGHT FRT AXLE PIVOT PT H0="

630 LOCATE 16, 71: PRINT""

640 PRINT "REAR TRACK WIDTH S =": LOCATE 17, 29: PRINT""

650 LOCATE 17, 40: PRINT "REAR TYRE WIDTH B0="

660 LOCATE 17, 71: PRINT""

670 PRINT "FRT AXLE SWING ANGLE D0=": LOCATE 18, 29: PRINT""

680 LOCATE 18, 40: PRINT "TRACTOR MASS Mc ="

690 LOCATE 18, 71: PRINT""

700 PRINT "MOMENT OF INERTIA Q =": LOCATE 19, 29: PRINT""

710 LOCATE 19, 40: PRINT""

720 LOCATE 19, 71: PRINT " ": PRINT : PRINT

730 H1 = 0: L3 = 0: L2 = 0: D3 = 0: D2 = 0: H6 = 0: L6 = 0: B6 = 0

740 H7 = 0: B7 = 0: L7 = 0: H0 = 0: S = 0: B0 = 0: D = 0: Mc = 0: Q = 0

750 NC = 9: GOSUB 4400

760 FOR I = 1 TO 3: PRINT "": NEXT

770 H1 = VAL(CAMPO$(9)): L3 = VAL(CAMPO$(10)): L2 = VAL(CAMPO$(11))

780 D3 = VAL(CAMPO$(12)): D2 = VAL(CAMPO$(13)): H6 = VAL(CAMPO$(14))

790 L6 = VAL(CAMPO$(15)): B6 = VAL(CAMPO$(16)): H7 = VAL(CAMPO$(17))

800 B7 = VAL(CAMPO$(18)): L7 = VAL(CAMPO$(19)): H0 = VAL(CAMPO$(20))

810 S = VAL(CAMPO$(21)): B0 = VAL(CAMPO$(22)): D0 = VAL(CAMPO$(23))

820 Mc = VAL(CAMPO$(24)): Q = VAL(CAMPO$(25)): PRINT : PRINT

830 PRINT "In case of mistype, it is possible to acquire again the data": PRINT

840 INPUT " Do you wish to acquire again the data ? (Y/N)"; X$

850 IF X$ = "Y" OR X$ = "y" THEN 400

860 IF X$ = "n" OR X$ = "N" THEN 870

870 FOR I = 1 TO 3: LPRINT : NEXT

880 LPRINT TAB(20); "CHARACTERISTIC UNITS :": LOCATE 8, 29

890 LPRINT "LINEAR (m) : MASS (kg) : MOMENT OF INERTIA (kg×m²) : ANGLE (radian)"

900 LPRINT

910 LPRINT "HEIGHT OF THE COG H1=";

920 LPRINT USING"####.####"; H1;

930 LPRINT TAB(40); "H. DIST. COG-REAR AXLE L3=";

940 LPRINT USING"####.####"; L3

950 LPRINT "H.DIST. COG-FRT AXLE L2=";

960 LPRINT USING"####.####"; L2;

970 LPRINT TAB(40); "HEIGHT OF THE REAR TYRES D3=";

975 LPRINT USING"####.####"; D3

980 LPRINT "HEIGHT OF THE FRT TYRES D2=";

990 LPRINT USING"####.####"; D2;

1000 LPRINT TAB(40); "OVERALL HEIGHT(PT IMPACT)H6=";

1010 LPRINT USING"####.####"; H6

1020 LPRINT "H.DIST.COG-LEAD PT INTER.L6=";

1030 LPRINT USING"####.####"; L6;

1040 LPRINT TAB(40); "PROTECTIVE STRUCT. WIDTH B6=";

1050 LPRINT USING"####.####"; B6

1060 LPRINT "HEIGHT OF THE ENG.B. H7=";

1070 LPRINT USING"####.####"; H7;

1080 LPRINT TAB(40); "WIDTH OF THE ENG. B. B7=";

1090 LPRINT USING"####.####"; B7

1100 LPRINT "H.DIST.COG-FRT COR.ENG.B.L7=";

1110 LPRINT USING"####.####"; L7;

1120 LPRINT TAB(40); "HEIGHT FRT AXLE PIVOT PT H0=";

1130 LPRINT USING"####.####"; H0

1140 LPRINT "REAR TRACK WIDTH S =";

1150 LPRINT USING"####.####"; S;

1160 LPRINT TAB(40); "REAR TYRE WIDTH B0=";

1170 LPRINT USING"####.####"; B0

1180 LPRINT "FRT AXLE SWING ANGLE D0=";

1185 LPRINT USING"####.####"; D0;

1190 LPRINT TAB(40); "TRACTOR MASS Mc = ";

1200 LPRINT USING "####.###"; Mc

1210 LPRINT "MOMENT OF INERTIA Q =";

1215 LPRINT USING"####.####"; Q

1220 FOR I = 1 TO 10: LPRINT : NEXT

1230 A0 = .588: U = .2: T = .2: GOSUB 4860

1240 REM * THE SIGN OF L6 IS MINUS IF THE POINT LIES IN FRONT

1250 REM * OF THE PLANE OF THE CENTRE OF GRAVITY.

1260 IF B6 > S + B0 THEN 3715

1265 IF B7 > S + B0 THEN 3715

1270 G = 9.8

1280 REM ***************************************************************************

1290 REM *B2 VERSION (POINT OF IMPACT OF THE ROPS NEAR OF EQUILIBRIUM POINT)*

1300 REM ***************************************************************************

1310 B = B6: H = H6

1320 REM POSITION OF CENTER OF GRAVITY IN TILTED POSITION

1330 R2 = SQR(H1 * H1 + L3 * L3)

1340 C1 = ATN(H1 / L3)

1350 L0 = L3 + L2

1360 L9 = ATN(H0 / L0)

1370 H9 = R2 * SIN(C1 - L9)

1380 W1 = H9 / TAN(C1 - L9)

1390 W2 = SQR(H0 * H0 + L0 * L0): S1 = S / 2

1400 F1 = ATN(S1 / W2)

1410 W3 = (W2 - W1) * SIN(F1)

1420 W4 = ATN(H9 / W3)

1430 W5 = SQR(H9 * H9 + W3 * W3) * SIN(W4 + D0)

1440 W6 = W3 - SQR(W3 * W3 + H9 * H9) * COS(W4 + D0)

1450 W7 = W1 + W6 * SIN(F1)

1460 W8 = ATN(W5 / W7)

1470 W9 = SIN(W8 + L9) * SQR(W5 * W5 + W7 * W7)

1480 W0 = SQR(W9 * W9 + (S1 - W6 * COS(F1)) ^ 2)

1490 G1 = SQR(((S + B0) / 2) ^ 2 + H1 * H1)

1500 G2 = ATN(2 * H1 / (S + B0))

1510 G3 = W0 - G1 * COS(A0 + G2)

1520 O0 = SQR(2 * Mc * G * G3 / (Q + Mc * (W0 + G1) * (W0 + G1) / 4))

1530 F2 = ATN(((D3 - D2) / L0) / (1 - ((D3 - D2) / (2 * L3 + 2 * L2)) ^ 2))

1540 L8 = -TAN(F2) * (H - H1)

1550 REM COORDINATES IN POSITION 1

1560 X(1, 1) = H1

1570 X(1, 2) = 0: X(1, 3) = 0

1580 X(1, 4) = (1 + COS(F2)) * D2 / 2

1590 X(1, 5) = (1 + COS(F2)) * D3 / 2

1600 X(1, 6) = H

1610 X(1, 7) = H7

1620 Y(1, 1) = 0

1630 Y(1, 2) = L2

1640 Y(1, 3) = -L3

1650 Y(1, 4) = L2 + SIN(F2) * D2 / 2

1660 Y(1, 5) = -L3 + SIN(F2) * D3 / 2

1670 Y(1, 6) = -L6

1680 Y(1, 7) = L7

1690 Z(1, 1) = (S + B0) / 2

1700 Z(1, 2) = 0: Z(1, 3) = 0: Z(1, 4) = 0: Z(1, 5) = 0

1710 Z(1, 6) = (S + B0) / 2 - B / 2

1720 Z(1, 7) = (S + B0) / 2 - B7 / 2

1730 O1 = 0: O2 = 0: O3 = 0: O4 = 0: O5 = 0: O6 = 0: O7 = 0: O8 = 0: O9 = 0

1740 K1 = Y(1, 4) * TAN(F2) + X(1, 4)

1750 K2 = X(1, 1)

1760 K3 = Z(1, 1)

1770 K4 = K1 - X(1, 1): DD1 = Q + Mc * K3 * K3 + Mc * K4 * K4

1780 O1 = (Q + Mc * K3 * K3 - U * Mc * K4 * K4 - (1 + U) * Mc * K2 * K4) * O0 / DD1

1790 REM TRANSFORMATION OF THE COORDINATES FROM THE POSITION 1 TO 2

1800 FOR K = 1 TO 7 STEP 1

1810 X(2, K) = COS(F2) * (X(1, K) - H1) + SIN(F2) * Y(1, K) - K4 * COS(F2)

1820 Y(2, K) = Y(1, K) * COS(F2) - (X(1, K) - H1) * SIN(F2)

1830 Z(2, K) = Z(1, K)

1840 NEXT K

1850 O2 = O1 * COS(F2)

1860 A2 = ATN(TAN(A0) / SQR(1 + (TAN(F2)) ^ 2 / (COS(A0)) ^ 2))

1870 C2 = ATN(Z(2, 6) / X(2, 6))

1880 T2 = T

1890 V0 = SQR(X(2, 6) ^ 2 + Z(2, 6) ^ 2)

1900 E1 = T2 / V0

1910 E2 = (V0 * Y(2, 4)) / (Y(2, 4) - Y(2, 6))

1920 T3 = E1 * E2

1930 E4 = SQR(X(2, 1) * X(2, 1) + Z(2, 1) * Z(2, 1))

1940 V6 = ATN(X(2, 1) / Z(2, 1))

1950 REM ROTATION OF THE TRACTOR FROM THE POSITION 2 TO 3

1960 FOR K = 1 TO 7 STEP 1

1970 IF Z(2, K) = 0 THEN 2000

1980 E3 = ATN(X(2, K) / Z(2, K))

1990 GOTO 2010

2000 E3 = -3.14159 / 2

2010 X(3, K) = SQR(X(2, K) * X(2, K) + Z(2, K) * Z(2, K)) * SIN(E3 + C2 + E1)

2020 Y(3, K) = Y(2, K)

2030 Z(3, K) = SQR(X(2, K) ^ 2 + Z(2, K) ^ 2) * COS(E3 + C2 + E1)

2040 NEXT K

2050 IF Z(3, 7) < 0 THEN 3680

2060 Z(3, 6) = 0

2070 Q3 = Q * (COS(F2)) ^ 2 + 3 * Q * (SIN(F2)) ^ 2

2080 V5 = (Q3 + Mc * E4 * E4) * O2 * O2 / 2

2090 IF -V6 > A2 THEN 2110

2100 GOTO 2130

2110 V7 = E4 * (1 - COS(-A2 - V6))

2120 IF V7 * Mc * G > V5 THEN 2320

2130 V8 = E4 * COS(-A2 - V6) - E4 * COS(-A2 - ATN(X(3, 1) / Z(3, 1)))

2140 O3 = SQR(2 * Mc * G * V8 / (Q3 + Mc * E4 * E4) + O2 * O2)

2150 K9 = X(3, 1)

2160 K5 = Z(3, 1)

2170 K6 = Z(3, 1) + E1 * V0

2180 K7 = V0 - X(3, 1)

2190 K8 = U: DD2 = Q3 + Mc * K6 * K6 + Mc * K7 * K7

2200 O4 = (Q3 + Mc * K5 * K6 - K8 * Mc * K7 * K7 - (1 + K8) * Mc * K9 * K7) * O3 / DD2

2210 N3 = SQR((X(3, 6) - X(3, 1)) ^ 2 + (Z(3, 6) - Z(3, 1)) ^ 2)

2220 N2 = ATN(-(X(3, 6) - X(3, 1)) / Z(3, 1))

2230 Q6 = Q3 + Mc * N3 ^ 2

2240 IF -N2 <= A2 THEN 2290

2250 N4 = N3 * (1 - COS(-A2 - N2))

2260 N5 = (Q6) * O4 * O4 / 2

2270 IF N4 * Mc * G > N5 THEN 2320

2280 O9 = SQR(-2 * Mc * G * N4 / (Q6) + O4 * O4)

2290 GOSUB 3740

2300 GOSUB 4170

2310 GOTO 4330

2320 GOSUB 3740

2330 IF L6 > L8 THEN 2790

2340 REM *

2350 REM ***************************************************************************************

2355 REM *B3 VERSION (POINT OF IMPACT OF THE ROPS IN FRONT OF EQUILIBRIUM POINT)*

2360 REM ***************************************************************************************

2370 O3 = 0: O4 = 0: O5 = 0: O6 = 0: O7 = 0: O8 = 0: O9 = 0

2380 E2 = (V0 * Y(2, 5)) / (Y(2, 5) - Y(2, 6))

2390 T3 = E2 * E1

2400 Z(3, 6) = 0

2410 Q3 = Q * (COS(F2)) ^ 2 + 3 * Q * (SIN(F2)) ^ 2

2420 V5 = (Q3 + Mc * E4 * E4) * O2 * O2 / 2

2430 IF -V6 > A2 THEN 2450

2440 GOTO 2470

2450 V7 = E4 * (1 - COS(-A2 - V6))

2460 IF V7 * Mc * G > V5 THEN 2760

2470 V8 = E4 * COS(-A2 - V6) - E4 * COS(-A2 - ATN(X(3, 1) / Z(3, 1)))

2480 O3 = SQR((2 * Mc * G * V8) / (Q3 + Mc * E4 * E4) + O2 * O2)

2490 K9 = X(3, 1)

2500 K5 = Z(3, 1)

2510 K6 = Z(3, 1) + T3

2520 K7 = E2 - X(3, 1)

2530 K8 = U: DD2 = Q3 + Mc * K6 * K6 + Mc * K7 * K7

2540 O4 = (Q3 + Mc * K5 * K6 - K8 * Mc * K7 * K7 - (1 + K8) * Mc * K9 * K7) * O3 / DD2

2550 F3 = ATN(V0 / (Y(3, 5) - Y(3, 6)))

2560 O5 = O4 * COS(F3)

2570 REM TRANSFORMATION OF THE COORDINATES FROM THE POSITION 3 TO 4

2580 REM POSITION 4

2590 FOR K = 1 TO 7 STEP 1

2600 X(4, K) = X(3, K) * COS(F3) + (Y(3, K) - Y(3, 5)) * SIN(F3)

2610 Y(4, K) = (Y(3, K) - Y(3, 5)) * COS(F3) - X(3, K) * SIN(F3)

2620 Z(4, K) = Z(3, K)

2630 NEXT K

2640 A4 = ATN(TAN(A0) / SQR(1 + (TAN(F2 + F3)) ^ 2 / (COS(A0)) ^ 2))

2650 M1 = SQR(X(4, 1) ^ 2 + Z(4, 1) ^ 2)

2660 M2 = ATN(X(4, 1) / Z(4, 1))

2670 Q5 = Q * (COS(F2 + F3)) ^ 2 + 3 * Q * (SIN(F2 + F3)) ^ 2

2680 IF -M2 < A4 THEN 2730

2690 M3 = M1 * (1 - COS(-A4 - M2))

2700 M4 = (Q5 + Mc * M1 * M1) * O5 * O5 / 2

2710 IF M3 * Mc * G > M4 THEN 2760

2720 O9 = SQR(O5 * O5 - 2 * Mc * G * M3 / (Q5 + Mc * M1 * M1))

2730 GOSUB 3740

2740 GOSUB 4170

2750 GOTO 4330

2760 GOSUB 3740

2770 GOSUB 4240

2780 GOTO 4330

2790 REM ****************************************************************************************

2795 REM *B1 VERSION (POINT OF IMPACT OF THE ROPS BEHIND OF EQUILIBRIUM POINT)*

2800 REM ****************************************************************************************

2810 REM *

2820 O3 = 0: O4 = 0: O5 = 0: O6 = 0: O7 = 0: O8 = 0: O9 = 0

2830 Z(3, 6) = 0

2840 Q3 = Q * (COS(F2)) ^ 2 + 3 * Q * (SIN(F2)) ^ 2

2850 V5 = (Q3 + Mc * E4 * E4) * O2 * O2 / 2

2860 IF -V6 > A2 THEN 2880

2870 GOTO 2900

2880 V7 = E4 * (1 - COS(-A2 - V6))

2890 IF V7 * Mc * G > V5 THEN 3640

2900 V8 = E4 * COS(-A2 - V6) - E4 * COS(-A2 - ATN(X(3, 1) / Z(3, 1)))

2910 O3 = SQR(2 * Mc * G * V8 / (Q3 + Mc * E4 * E4) + O2 * O2)

2920 K9 = X(3, 1)

2930 K5 = Z(3, 1)

2940 K6 = Z(3, 1) + T3

2950 K7 = E2 - X(3, 1)

2960 K8 = U: DD2 = Q3 + Mc * K6 * K6 + Mc * K7 * K7

2970 O4 = (Q3 + Mc * K5 * K6 - K8 * Mc * K7 * K7 - (1 + K8) * Mc * K9 * K7) * O3 / DD2

2980 F3 = ATN(V0 / (Y(3, 4) - Y(3, 6)))

2990 O5 = O4 * COS(F3)

3000 REM TRANSFORMATION OF THE COORDINATES FROM 3 TO 4

3010 FOR K = 1 TO 7 STEP 1

3020 X(4, K) = X(3, K) * COS(F3) + (Y(3, K) - Y(3, 4)) * SIN(F3)

3030 Y(4, K) = (Y(3, K) - Y(3, 4)) * COS(F3) - X(3, K) * SIN(F3)

3040 Z(4, K) = Z(3, K)

3050 NEXT K

3060 A4 = ATN(TAN(A0) / SQR(1 + (TAN(F2 + F3)) ^ 2 / (COS(A0)) ^ 2))

3070 C3 = ATN(Z(4, 7) / X(4, 7))

3080 C4 = 0

3090 C5 = SQR(X(4, 7) * X(4, 7) + Z(4, 7) * Z(4, 7))

3100 C6 = C4 / C5

3110 C7 = C5 * (Y(4, 6) - Y(4, 1)) / (Y(4, 6) - Y(4, 7))

3120 C8 = C6 * C7

3130 M1 = SQR(X(4, 1) ^ 2 + Z(4, 1) ^ 2)

3140 M2 = ATN(X(4, 1) / Z(4, 1))

3150 REM ROTATION OF THE TRACTOR FROM THE POSITION 4 TO 5

3160 FOR K = 1 TO 7 STEP 1

3170 IF Z(4, K) <> 0 THEN 3200

3180 C9 = -3.14159 / 2

3190 GOTO 3210

3200 C9 = ATN(X(4, K) / Z(4, K))

3210 X(5, K) = SQR(X(4, K) ^ 2 + Z(4, K) ^ 2) * SIN(C9 + C3 + C6)

3220 Y(5, K) = Y(4, K)

3230 Z(5, K) = SQR(X(4, K) ^ 2 + Z(4, K) ^ 2) * COS(C9 + C3 + C6)

3240 NEXT K

3250 Z(5, 7) = 0

3260 Q5 = Q * (COS(F2 + F3)) ^ 2 + 3 * Q * (SIN(F2 + F3)) ^ 2

3270 IF -M2 > A4 THEN 3290

3280 GOTO 3320

3290 M3 = M1 * (1 - COS(-A4 - M2))

3300 M4 = (Q5 + Mc * M1 * M1) * O5 * O5 / 2

3310 IF M3 * Mc * G > M4 THEN 3640

3315 MM1 = M1 * COS(-A4 - ATN(X(5, 1) / Z(5, 1)))

3320 M5 = M1 * COS(-A4 - ATN(X(4, 1) / Z(4, 1))) - MM1

3330 O6 = SQR(2 * Mc * G * M5 / (Q5 + Mc * M1 * M1) + O5 * O5)

3340 M6 = X(5, 1)

3350 M7 = Z(5, 1)

3360 M8 = Z(5, 1) + C8

3370 M9 = C7 - X(5, 1)

3380 N1 = U: DD3 = (Q5 + Mc * M8 * M8 + Mc * M9 * M9)

3390 O7 = (Q5 + Mc * M7 * M8 - N1 * Mc * M9 * M9 - (1 + N1) * Mc * M6 * M9) * O6 / DD3

3400 F5 = ATN(C5 / (Y(5, 6) - Y(5, 7)))

3410 A6 = ATN(TAN(A0) / SQR(1 + (TAN(F2 + F3 + F5)) ^ 2 / (COS(A0)) ^ 2))

3420 REM TRANSFORMATION OF THE COORDINATES FROM THE POSITION 5 TO 6

3430 FOR K = 1 TO 7 STEP 1

3440 X(6, K) = X(5, K) * COS(F5) + (Y(5, K) - Y(5, 6)) * SIN(F5)

3450 Y(6, K) = (Y(5, K) - Y(5, 6)) * COS(F5) - X(5, K) * SIN(F5)

3460 Z(6, K) = Z(5, K)

3470 NEXT K

3480 O8 = O7 * COS(-F5)

3490 N2 = ATN(X(6, 1) / Z(6, 1))

3500 N3 = SQR(X(6, 1) ^ 2 + Z(6, 1) ^ 2)

3510 Q6 = Q * (COS(F2 + F3 + F5)) ^ 2 + 3 * Q * (SIN(F2 + F3 + F5)) ^ 2

3520 IF -N2 > A6 THEN 3540

3530 GOTO 3580

3540 N4 = N3 * (1 - COS(-A6 - N2))

3550 N5 = (Q6 + Mc * N3 * N3) * O8 * O8 / 2

3560 P9 = (N4 * Mc * G - N5) / (N4 * Mc * G)

3570 IF N4 * Mc * G > N5 THEN 3640

3580 IF -N2 < A6 THEN 3610

3590 N6 = -N4

3600 O9 = SQR(2 * Mc * G * N6 / (Q6 + Mc * N3 * N3) + O8 * O8)

3610 GOSUB 3740

3620 GOSUB 4170

3630 GOTO 4330

3640 GOSUB 3740

3650 GOSUB 4240

3660 GOTO 4330

3670 REM

3680 IF Z(3, 7) > -.2 THEN 2060

3685 CLS : PRINT : PRINT : PRINT STRING$(80, 42): LOCATE 24, 30, 0

3690 PRINT "THE ENGINE BONNET TOUCHES THE GROUND BEFORE THE ROPS"

3695 LPRINT STRING$(80, 42)

3700 LPRINT "THE ENGINE BONNET TOUCHES THE GROUND BEFORE THE ROPS"

3710 PRINT : PRINT "METHOD OF CALCULATION NOT FEASIBLE" : GOTO 3720

3715 CLS : PRINT : PRINT "METHOD OF CALCULATION NOT FEASIBLE"

3720 LPRINT "METHOD OF CALCULATION NOT FEASIBLE"

3725 LPRINT STRING$(80, 42)

3730 GOTO 4330

3740 REM *******************************************************************

3750 CLS : LOCATE 13, 15, 0: PRINT "VELOCITY O0="

3755 LOCATE 13, 31, 0: PRINT USING"#.###"; O0: LOCATE 13, 40, 0: PRINT "rad/s"

3760 LOCATE 14, 15, 0: PRINT "VELOCITY O1="

3765 LOCATE 14, 31, 0: PRINT USING"#.###"; O1

3770 LOCATE 15, 15, 0: PRINT "VELOCITY O2="

3775 LOCATE 15, 31, 0: PRINT USING"#.###"; O2

3780 LOCATE 16, 15, 0: PRINT "VELOCITY O3="

3785 LOCATE 16, 31, 0: PRINT USING"#.###"; O3

3790 LOCATE 17, 15, 0: PRINT "VELOCITY O4="

3795 LOCATE 17, 31, 0: PRINT USING"#.###"; O4

3800 LOCATE 18, 15, 0: PRINT "VELOCITY O5="

3805 LOCATE 18, 31, 0: PRINT USING"#.###"; O5

3810 LOCATE 19, 15, 0: PRINT "VELOCITY O6="

3815 LOCATE 19, 31, 0: PRINT USING"#.###"; O6

3820 LOCATE 20, 15, 0: PRINT "VELOCITY O7="

3825 LOCATE 20, 31, 0: PRINT USING"#.###"; O7

3830 LOCATE 21, 15, 0: PRINT "VELOCITY O8="

3835 LOCATE 21, 31, 0: PRINT USING"#.###"; O8

3840 LOCATE 22, 15, 0: PRINT "VELOCITY O9="

3845 LOCATE 22, 31, 0: PRINT USING"#.###"; O9

3850 LPRINT "VELOCITY O0=";

3860 LPRINT USING"#.###"; O0;

3870 LPRINT " rad/s";

3880 LPRINT TAB(40); "VELOCITY O1=";

3890 LPRINT USING"#.###"; O1;

3900 LPRINT " rad/s"

3910 LPRINT "VELOCITY O2=";

3920 LPRINT USING"#.###"; O2;

3930 LPRINT " rad/s";

3940 LPRINT TAB(40); "VELOCITY O3=";

3950 LPRINT USING"#.###"; O3;

3960 LPRINT " rad/s"

3970 LPRINT "VELOCITY O4=";

3980 LPRINT USING"#.###"; O4;

3990 LPRINT " rad/s";

4000 LPRINT TAB(40); "VELOCITY O5=";

4010 LPRINT USING"#.###"; O5;

4020 LPRINT " rad/s"

4030 LPRINT "VELOCITY O6=";

4040 LPRINT USING"#.###"; O6;

4050 LPRINT " rad/s";

4060 LPRINT TAB(40); "VELOCITY O7=";

4070 LPRINT USING"#.###"; O7;

4080 LPRINT " rad/s"

4090 LPRINT "VELOCITY O8=";

4100 LPRINT USING"#.###"; O8;

4110 LPRINT " rad/s";

4120 LPRINT TAB(40); "VELOCITY O9=";

4130 LPRINT USING"#.###"; O9;

4140 LPRINT " rad/s"

4150 LPRINT

4160 RETURN

4170 PRINT STRING$(80, 42)

4180 LOCATE 24, 30, 0: PRINT "THE TILTING CONTINUES"

4190 PRINT STRING$(80, 42)

4200 LPRINT STRING$(80, 42)

4210 LPRINT TAB(30); "THE TILTING CONTINUES"

4220 LPRINT STRING$(80, 42)

4230 RETURN

4240 PRINT STRING$(80, 42)

4250 LOCATE 24, 30, 0: PRINT "THE ROLLING STOPS"

4260 PRINT STRING$(80, 42)

4270 LPRINT STRING$(80, 42)

4280 LPRINT TAB(30); "THE ROLLING STOPS"

4290 LPRINT STRING$(80, 42)

4300 RETURN

4310 REM *******************************************************************

4320 REM END OF THE CALCULATION

4330 FOR I = 1 TO 5: LPRINT : NEXT: LPRINT " LOCATION : "; CAMPO$(6): LPRINT

4340 LPRINT " DATE : "; CAMPO$(7): LPRINT

4350 LPRINT ; " ENGINEER : "; CAMPO$(8): LPRINT

4360 FOR I = 1 TO 4: LPRINT : NEXT: PRINT

4370 INPUT " Do you whish to carry out another test ? (Y/N)"; Y$

4380 IF Y$ = "Y" OR Y$ = "y" THEN 190

4390 IF Y$ = "N" OR Y$ = "n" THEN SYSTEM

4400 LOCATE F(NC), C(NC) + L, 1: A$ = INKEY$: IF A$ = "" THEN GOTO 4400

4410 IF LEN(A$) > 1 THEN GOSUB 4570: GOTO 4400

4420 A = ASC(A$)

4430 IF A = 13 THEN L = 0: GOTO 4450

4440 GOTO 4470

4450 IF NC < 8 OR NC > 8 AND NC < 25 THEN NC = NC + 1: GOTO 4400

4460 GOTO 4840

4470 IF A > 31 AND A < 183 THEN GOTO 4490

4480 BEEP: GOTO 4400

4490 IF L = LON(NC) THEN BEEP: GOTO 4400

4500 LOCATE F(NC), C(NC) + L: PRINT A$;

4510 L = L + 1

4520 IF L = 1 THEN B$(NC) = A$: GOTO 4540

4530 B$(NC) = B$(NC) + A$

4540 IF LEN(C$(NC)) > 0 THEN C$(NC) = RIGHT$(CAMPO$(NC), LEN(CAMPO$(NC)) - L)

4550 CAMPO$(NC) = B$(NC) + C$(NC)

4560 GOTO 4400

4570 REM * SLIDE

4580 IF LEN(A$) <> 2 THEN BEEP: RETURN

4590 C = ASC(RIGHT$(A$, 1))

4600 IF C = 8 THEN 4620

4610 GOTO 4650

4620 IF LEN(C$(NC)) > 0 THEN BEEP: RETURN

4630 IF L = 0 THEN BEEP: RETURN

4640 CAMPO$(NC) = LEFT$(CAMPO$(NC), LEN(CAMPO(NC)))

4645 L = L - 1: PRINT A$: RETURN

4650 IF C = 30 THEN 4670

4660 GOTO 4700

4670 IF NC = 1 THEN BEEP: RETURN

4680 NC = NC - 1: L = 0

4690 RETURN

4700 IF C = 31 THEN 4720

4710 GOTO 4760

4720 IF NC <> 8 THEN 4740

4730 BEEP: RETURN

4740 NC = NC + 1: L = 0

4750 RETURN

4760 IF C = 29 THEN 4780

4770 GOTO 4800

4780 IF L = 0 THEN BEEP: RETURN

4790 L = L - 1: C$(NC) = RIGHT$(CAMPO$(NC), LEN(CAMPO$(NC)) - (L + 1))

4795 B$(NC) = LEFT$(CAMPO$(NC), L): LOCATE F(NC), C(NC) + L + 1: PRINT ""

4796 RETURN

4800 IF C = 28 THEN 4820

4810 GOTO 4400

4820 IF C$(NC) = "" THEN BEEP: RETURN

4830 L = L + 1: C$(NC) = RIGHT$(CAMPO$(NC), LEN(CAMPO$(NC)) - (L))

4835 B$(NC) = LEFT$(CAMPO$(NC), L): LOCATE F(NC), C(NC) + L, 1: PRINT ""

4840 RETURN

4850 RETURN

4860 FOR II = 1 TO 7

4870 X(1, II) = 0: X(2, II) = 0: X(3, II) = 0

4875 X(4, II) = 0: X(5, II) = 0: X(6, II) = 0

4880 Y(1, II) = 0: Y(2, II) = 0: Y(3, II) = 0

4885 Y(4, II) = 0: Y(5, II) = 0: Y(6, II) = 0

4890 Z(1, II) = 0: Z(2, II) = 0: Z(3, II) = 0

4895 Z(4, II) = 0: Z(5, II) = 0: Z(6, II) = 0

4900 NEXT II

4910 RETURN

4920 REM * THE SYMBOLS USED HERE ARE THE SAME AS IN THE CODE 6.

[F2 For tractor fitted with tracks, the following lines have to be substituted in the original model:

• 520 LOCATE 12, 40: PRINT ‘ HEIGHT OF THE REAR TRACKS D3= ’

• *540 PRINT ‘ HEIGHT OF THE FRT TRACKS D2= ’ : LOCATE 13, 29: PRINT ‘ ’

• 650 LOCATE 17, 40: PRINT ‘ REAR TRACKS WIDTH B0= ’

• 970 LPRINT TAB(40); ‘ HEIGHT OF THE REAR TRACKS D3= ’ ;

• *980 LPRINT ‘ HEIGHT OF THE FRT TRACKS D2= ’ ;

• 1160 LPRINT TAB(40); ‘ REAR TRACK WIDTH B0= ’ ;

• 1390 W2 = SQR(H0 * H0 + L0 * L0): S1 = S/2 + B0/2

• 1530 F2 = 2 * ATN(- L0/D3 + SQR((L0/D3) ^ 2 – (D2/D3) + 1))

• 1590 X(1, 5) = D3

• 1660 Y(1, 5) = -L3

* if applicable] U.K.

Example 6.1 The tilting continues U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7620	H. DIST. COG-REAR AXLE	L3 = 0.8970
H. DIST. COG - FRONT AXLE	L2 = 1.1490	HEIGHT OF THE REAR TYRES	D3 = 1.2930
HEIGHT OF THE FRT TYRES	D2 = 0.8800	OVERALL HEIGHT( PT IMPACT)	H6 = 2.1000
H. DIST. COG-LEAD PT INTER.	L6 = 0.2800	PROTECTIVE STRUCT. WIDTH	B6 = 0.7780
HEIGHT OF THE ENG. B.	H7 = 1.3370	WIDTH OF THE ENG. B.	B7 = 0.4900
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4450
REAR TRACK WIDTH	S = 1.1150	REAR TYRE WIDTH	B0 = 0.1950
FRT AXLE SWING ANGLE	D0 = 0.1570	TRACTOR MASS	Mc = 2565.000
MOMENT OF INERTIA	Q = 295.0000

VELOCITY O0 = 3.881 rad/s	VELOCITY O1 = 1.078 rad/s
VELOCITY O2 = 1.057 rad/s	VELOCITY O3 = 2.134 rad/s
VELOCITY O4 = 0.731 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s
VELOCITY O0 = 3.881 rad/s	VELOCITY O1 = 1.078 rad/s
VELOCITY O2 = 1.057 rad/s	VELOCITY O3 = 2.134 rad/s
VELOCITY O4 = 1.130 rad/s	VELOCITY O5 = 0.993 rad/s
VELOCITY O6 = 0.810 rad/s	VELOCITY O7 = 0.629 rad/s
VELOCITY O8 = 0.587 rad/s	VELOCITY O9 = 0.219 rad/s

THE TILTING CONTINUES U.K.

Location:

Date:

Engineer:

Example 6.2 The rolling stops U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7653	H. DIST. COG-REAR AXLE	L3 = 0.7970
H. DIST. COG - FRONT AXLE	L2 = 1.1490	HEIGHT OF THE REAR TYRES	D3 = 1.4800
HEIGHT OF THE FRT TYRES	D2 = 0.8800	OVERALL HEIGHT( PT IMPACT)	H6 = 2.1100
H. DIST. COG-LEAD PT INTER.	L6 = -0.0500	PROTECTIVE STRUCT. WIDTH	B6 = 0.7000
HEIGHT OF THE ENG. B.	H7 = 1.3700	WIDTH OF THE ENG. B.	B7 = 0.8000
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4450
REAR TRACK WIDTH	S = 1.1150	REAR TYRE WIDTH	B0 = 0.1950
FRT AXLE SWING ANGLE	D0 = 0.1570	TRACTOR MASS	Mc = 1800.000
MOMENT OF INERTIA	Q = 250.0000

VELOCITY O0 = 3.840 rad/s	VELOCITY O1 = 0.281 rad/s
VELOCITY O2 = 0.268 rad/s	VELOCITY O3 = 1.586 rad/s
VELOCITY O4 = 0.672 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s
VELOCITY O0 = 3.840 rad/s	VELOCITY O1 = 0.281 rad/s
VELOCITY O2 = 0.268 rad/s	VELOCITY O3 = 1.586 rad/s
VELOCITY O4 = 0.867 rad/s	VELOCITY O5 = 0.755 rad/s
VELOCITY O6 = 1.218 rad/s	VELOCITY O7= 0.969 rad/s
VELOCITY O8 = 0.898 rad/s	VELOCITY O9 = 0.000 rad/s

THE ROLLING STOPS U.K.

Location:

Date:

Engineer:

Example 6.3 The rolling stops U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7180	H. DIST. COG-REAR AXLE	L3 = 0.8000
H. DIST. COG - FRONT AXLE	L2 = 1.1590	HEIGHT OF THE REAR TYRES	D3 = 1.5200
HEIGHT OF THE FRT TYRES	D2 = 0.7020	OVERALL HEIGHT( PT IMPACT)	H6 = 2.0040
H. DIST. COG-LEAD PT INTER.	L6 = -0.2000	PROTECTIVE STRUCT. WIDTH	B6 = 0.6400
HEIGHT OF THE ENG. B.	H7 = 1.2120	WIDTH OF THE ENG. B.	B7 = 0.3600
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4400
REAR TRACK WIDTH	S = 0.9000	REAR TYRE WIDTH	B0 = 0.3150
FRT AXLE SWING ANGLE	D0 = 0.1740	TRACTOR MASS	Mc = 1780.000
MOMENT OF INERTIA	Q = 279.8960

VELOCITY O0 = 3.884 rad/s	VELOCITY O1 = 0.107 rad/s
VELOCITY O2 = 0.098 rad/s	VELOCITY O3 = 0.000 rad/s
VELOCITY O4 = 0.000 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s
VELOCITY O0 = 3.884 rad/s	VELOCITY O1 = 0.107 rad/s
VELOCITY O2 = 0.098 rad/s	VELOCITY O3 = 0.000 rad/s
VELOCITY O4 = 0.000 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s

THE ROLLING STOPS U.K.

Location:

Date:

Engineer:

Example 6.4 The rolling stops U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7180	H. DIST. COG-REAR AXLE	L3 = 0.8110
H. DIST. COG - FRONT AXLE	L2 = 1.1590	HEIGHT OF THE REAR TYRES	D3 = 1.2170
HEIGHT OF THE FRT TYRES	D2 = 0.7020	OVERALL HEIGHT( PT IMPACT)	H6 = 2.1900
H. DIST. COG-LEAD PT INTER.	L6 = -0.3790	PROTECTIVE STRUCT. WIDTH	B6 = 0.6400
HEIGHT OF THE ENG. B.	H7 = 1.2120	WIDTH OF THE ENG. B.	B7 = 0.3600
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4400
REAR TRACK WIDTH	S = 0.9000	REAR TYRE WIDTH	B0 = 0.3150
FRT AXLE SWING ANGLE	D0 = 0.1740	TRACTOR MASS	Mc = 1780.000
MOMENT OF INERTIA	Q = 279.8960

VELOCITY O0 = 3.884 rad/s	VELOCITY O1 = 1.540 rad/s
VELOCITY O2 = 1.488 rad/s	VELOCITY O3 = 2.162 rad/s
VELOCITY O4 = 0.405 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s
VELOCITY O0 = 3.884 rad/s	VELOCITY O1 = 1.540 rad/s
VELOCITY O2 = 1.488 rad/s	VELOCITY O3 = 2.162 rad/s
VELOCITY O4 = 0.414 rad/s	VELOCITY O5 = 0.289 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7= 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s

THE ROLLING STOPS U.K.

Location:

Date:

Engineer:

Example 6.5 The tilting continues U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7660	H. DIST. COG-REAR AXLE	L3 = 0.7970
H. DIST. COG - FRONT AXLE	L2 = 1.1490	HEIGHT OF THE REAR TYRES	D3 = 1.4800
HEIGHT OF THE FRT TYRES	D2 = 0.8800	OVERALL HEIGHT( PT IMPACT)	H6 = 2.1100
H. DIST. COG-LEAD PT INTER.	L6 = -0.2000	PROTECTIVE STRUCT. WIDTH	B6 = 0.7000
HEIGHT OF THE ENG. B.	H7 = 1.3700	WIDTH OF THE ENG. B.	B7 = 0.8000
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4450
REAR TRACK WIDTH	S = 1.1150	REAR TYRE WIDTH	B0 = 0.9100
FRT AXLE SWING ANGLE	D0 = 0.1570	TRACTOR MASS	Mc = 1800.000
MOMENT OF INERTIA	Q = 250.0000

VELOCITY O0 = 2.735 rad/s	VELOCITY O1 = 1.271 rad/s
VELOCITY O2 = 1.212 rad/s	VELOCITY O3 = 2.810 rad/s
VELOCITY O4 = 1.337 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s

THE TILTING CONTINUES U.K.

Location:

Date:

Engineer:

Example 6.6 The tilting continues U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7653	H. DIST. COG-REAR AXLE	L3 = 0.7970
H. DIST. COG - FRONT AXLE	L2 = 1.1490	HEIGHT OF THE REAR TYRES	D3 = 1.2930
HEIGHT OF THE FRT TYRES	D2 = 0.8800	OVERALL HEIGHT( PT IMPACT)	H6 = 1.9600
H. DIST. COG-LEAD PT INTER.	L6 = -0.4000	PROTECTIVE STRUCT. WIDTH	B6 = 0.7000
HEIGHT OF THE ENG. B.	H7 = 1.3700	WIDTH OF THE ENG. B.	B7 = 0.8750
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4450
REAR TRACK WIDTH	S = 1.1150	REAR TYRE WIDTH	B0 = 0.1950
FRT AXLE SWING ANGLE	D0 = 0.1570	TRACTOR MASS	Mc = 1800.000
MOMENT OF INERTIA	Q = 275.0000

VELOCITY O0 = 3.815 rad/s	VELOCITY O1 = 1.130 rad/s
VELOCITY O2 = 1.105 rad/s	VELOCITY O3 = 2.196 rad/s
VELOCITY O4 = 0.786 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s
VELOCITY O0 = 3.815 rad/s	VELOCITY O1 = 1.130 rad/s
VELOCITY O2 = 1.105 rad/s	VELOCITY O3 = 2.196 rad/s
VELOCITY O4 = 0.980 rad/s	VELOCITY O5 = 0.675 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.548 rad/s

THE TILTING CONTINUES U.K.

Location:

Date:

Engineer:

Example 6.7 Method of calculation not feasible U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7620	H. DIST. COG-REAR AXLE	L3 = 0.7970
H. DIST. COG - FRONT AXLE	L2 = 1.1490	HEIGHT OF THE REAR TYRES	D3 = 1.5500
HEIGHT OF THE FRT TYRES	D2 = 0.8800	OVERALL HEIGHT( PT IMPACT)	H6 = 2.1000
H. DIST. COG-LEAD PT INTER.	L6 = -0.4780	PROTECTIVE STRUCT. WIDTH	B6 = 0.7780
HEIGHT OF THE ENG. B.	H7 = 1.5500	WIDTH OF THE ENG. B.	B7 = 0.9500
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4450
REAR TRACK WIDTH	S = 1.1150	REAR TYRE WIDTH	B0 = 0.1950
FRT AXLE SWING ANGLE	D0 = 0.1570	MOMENT OF INERTIA	Q = 200.0000
TRACTOR MASS	Mc = 1800.000

THE ENGINE BONNET TOUCHES THE GROUND BEFORE THE ROPS METHOD OF CALCULATION NOT FEASIBLE U.K.

Location:

Date:

Engineer:

Example 6.8 The rolling stops U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7180	H. DIST. COG-REAR AXLE	L3 = 0.8110
H. DIST. COG - FRONT AXLE	L2 = 1.1590	HEIGHT OF THE REAR TYRES	D3 = 1.2170
HEIGHT OF THE FRT TYRES	D2 = 0.7020	OVERALL HEIGHT( PT IMPACT)	H6 = 2.0040
H. DIST. COG-LEAD PT INTER.	L6 = -0.3790	PROTECTIVE STRUCT. WIDTH	B6 = 0.6400
HEIGHT OF THE ENG. B.	H7 = 1.2120	WIDTH OF THE ENG. B.	B7 = 0.3600
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4400
REAR TRACK WIDTH	S = 0.9000	REAR TYRE WIDTH	B0 = 0.3150
FRT AXLE SWING ANGLE	D0 = 0.1740	TRACTOR MASS	Mc = 1780.000
MOMENT OF INERTIA	Q = 279.8960

VELOCITY O0 = 3.884 rad/s	VELOCITY O1 = 1.540 rad/s
VELOCITY O2 = 1.488 rad/s	VELOCITY O3 = 2.313 rad/s
VELOCITY O4 = 0.581 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s
VELOCITY O0 = 3.884 rad/s	VELOCITY O1 = 1.540 rad/s
VELOCITY O2 = 1.488 rad/s	VELOCITY O3 = 2.313 rad/s
VELOCITY O4 = 0.633 rad/s	VELOCITY O5 = 0.373 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s

THE ROLLING STOPS U.K.

Location:

Date:

Engineer:

Example 6.9 The tilting continues U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7620	H. DIST. COG-REAR AXLE	L3 = 0.7970
H. DIST. COG - FRONT AXLE	L2 = 1.1490	HEIGHT OF THE REAR TYRES	D3 = 1.2930
HEIGHT OF THE FRT TYRES	D2 = 0.8800	OVERALL HEIGHT( PT IMPACT)	H6 = 1.9670
H. DIST. COG-LEAD PT INTER.	L6 = -0.3000	PROTECTIVE STRUCT. WIDTH	B6 = 0.7700
HEIGHT OF THE ENG. B.	H7 = 1.3500	WIDTH OF THE ENG. B.	B7 = 0.9500
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4450
REAR TRACK WIDTH	S = 1.1150	REAR TYRE WIDTH	B0 = 0.1950
FRT AXLE SWING ANGLE	D0 = 0.1570	TRACTOR MASS	Mc = 1800.000
MOMENT OF INERTIA	Q = 300.0000

VELOCITY O0 = 3.790 rad/s	VELOCITY O1 = 1.159 rad/s
VELOCITY O2 = 1.133 rad/s	VELOCITY O3 = 2.118 rad/s
VELOCITY O4 = 0.801 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.000 rad/s
VELOCITY O0 = 3.790 rad/s	VELOCITY O1 = 1.159 rad/s
VELOCITY O2 = 1.133 rad/s	VELOCITY O3 = 2.118 rad/s
VELOCITY O4 = 0.856 rad/s	VELOCITY O5 = 0.562 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.205 rad/s

THE TILTING CONTINUES U.K.

Location:

Date:

Engineer:

Example 6.10 The tilting continues U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

HEIGHT OF THE COG	H1 = 0.7653	H. DIST. COG-REAR AXLE	L3 = 0.7970
H. DIST. COG - FRONT AXLE	L2 = 1.1490	HEIGHT OF THE REAR TYRES	D3 = 1.3800
HEIGHT OF THE FRT TYRES	D2 = 0.8800	OVERALL HEIGHT( PT IMPACT)	H6 = 1.9600
H. DIST. COG-LEAD PT INTER.	L6 = -0.3000	PROTECTIVE STRUCT. WIDTH	B6 = 0.7000
HEIGHT OF THE ENG. B.	H7 = 1.3700	WIDTH OF THE ENG. B.	B7 = 0.8900
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4450
REAR TRACK WIDTH	S = 1.1150	REAR TYRE WIDTH	B0 = 0.1950
FRT AXLE SWING ANGLE	D0 = 0.1570	TRACTOR MASS	Mc = 1800.000
MOMENT OF INERTIA	Q = 275.0000

VELOCITY O0 = 3.815 rad/s	VELOCITY O1 = 0.748 rad/s
VELOCITY O2 = 0.724 rad/s	VELOCITY O3 = 1.956 rad/s
VELOCITY O4 = 0.808 rad/s	VELOCITY O5 = 0.000 rad/s
VELOCITY O6 = 0.000 rad/s	VELOCITY O7 = 0.000 rad/s
VELOCITY O8 = 0.000 rad/s	VELOCITY O9 = 0.407 rad/s

THE TILTING CONTINUES U.K.

Location:

Date:

Engineer:

Example 6.11 The rolling stops U.K.

TEST NR:

FRONT MOUNTED-OVER PROTECTIVE STRUCTURE OF THE NARROW TRACTOR: U.K.

Characteristic units:

LINEAR (m): MASS (kg):

MOMENT OF INERTIA (kgm²): ANGLE (radian)

EIGHT OF THE COG	H1 = 0.7653	H. DIST. COG-REAR AXLE	L3 = 0.7970
H. DIST. COG - FRONT AXLE	L2 = 1.1490	HEIGHT OF THE REAR TYRES	D3 = 1.4800
HEIGHT OF THE FRT TYRES	D2 = 0.9000	OVERALL HEIGHT( PT IMPACT)	H6 = 1.9600
H. DIST. COG-LEAD PT INTER.	L6 = -0.4000	PROTECTIVE STRUCT. WIDTH	B6 = 0.7000
HEIGHT OF THE ENG. B.	H7 = 1.3700	WIDTH OF THE ENG. B.	B7 = 0.8000
H. DIST. COG-FRT COR. ENG. B.	L7 = 1.6390	HEIGHT FRT AXLE PIVOT PT	H0 = 0.4450
REAR TRACK WIDTH	S = 1.1150	REAR TYRE WIDTH	B0 = 0.1950
FRT AXLE SWING ANGLE	D0 = 0.1570	TRACTOR MASS	Mc = 1800.000
MOMENT OF INERTIA	Q = 250.0000

VELOCITY O0 = 3.840	VELOCITY O1 = 0.246
VELOCITY O2 = 0.235	VELOCITY O3 = 0.000
VELOCITY O4 = 0.000	VELOCITY O5 = 0.000
VELOCITY O6 = 0.000	VELOCITY O7 = 0.000
VELOCITY O8 = 0.000	VELOCITY O9 = 0.000
VELOCITY O0 = 3.840	VELOCITY O1 = 0.246
VELOCITY O2 = 0.235	VELOCITY O3 = 0.000
VELOCITY O4 = 0.000	VELOCITY O5 = 0.000
VELOCITY O6 = 0.000	VELOCITY O7 = 0.000
VELOCITY O8 = 0.000	VELOCITY O9 = 0.000

THE ROLLING STOPS U.K.

Location:

Date:

Engineer:

Explanatory notes to Annex IX: U.K.

^{[F1 (1)} Unless the numbering of sections B2 and B3 which has been harmonised with the whole Annex, the text of the requirements and the numbering set out in point B are identical with the text and numbering of the OECD standard Code for the official testing of front mounted roll-over protective structures on narrow-track agricultural and forestry tractors, OECD standard Code 6, Edition 2017 of February 2017.] U.K.

⁽²⁾ Users are reminded that the seat index point is determined according to ISO 5353:1995 and is a fixed point with respect to the tractor that does not move as the seat is adjusted away from the mid-position. For purposes of determining the clearance zone, the seat shall be placed in the rear and uppermost position. U.K.

⁽³⁾ The programme and the examples are available on the OECD website. U.K.

⁽⁴⁾ Permanent + elastic deflection measured at the point when the required energy level is obtained. U.K.

ANNEX X

Requirements applying to roll-over protection structures (rear mounted roll-over protective structures on narrow-track tractors) U.K.

A. GENERAL PROVISIONS U.K.

1. The Union requirements applying to roll-over protection structures (rear mounted roll-over protective structures on narrow track tractors) are set out in point B. U.K.

2. Tests may be performed in accordance with the static or alternatively the dynamic test procedures as set out in sections B1 and B2. The two methods are deemed equivalent. U.K.

[F2 3. In addition to the requirements set out in point 2, the performance requirements for foldable roll-over protective structures (ROPS) set out in section B3 shall be met.] U.K.

B. REQUIREMENTS APPLYING TO ROLL-OVER PROTECTION STRUCTURES (REAR MOUNTED ROLL-OVER PROTECTIVE STRUCTURES ON NARROW TRACK TRACTORS)⁽¹⁾ U.K.

1. Definitions U.K.

1.1. [Not applicable] U.K.

1.2. Roll-Over Protective Structure (ROPS) U.K.

Roll-over protective structure (protective cab or frame), hereinafter called ‘protective structure’, means the structure on a tractor the essential purpose of which is to avoid or limit risks to the driver resulting from roll-over of the tractor during normal use.

The roll-over protective structure is characterized by the provision of space for a clearance zone large enough to protect the driver when seated either inside the envelope of the structure or within a space bounded by a series of straight lines from the outer edges of the structure to any part of the tractor that might come into contact with flat ground and that is capable of supporting the tractor in that position if the tractor overturns.

1.3. Track U.K.

1.3.1. Preliminary definition: median plane of the wheel or track. U.K.

The median plane of the wheel is equidistant from the two planes containing the periphery of the rims or tracks at their outer edges.

1.3.2. Definition of track U.K.

The vertical plane through the wheel axis intersects its median plane along a straight line which meets the supporting surface at one point. If A and B are the two points thus defined for the wheels on the same axle of the tractor, then the track width is the distance between points A and B. The track may be thus defined for both front and rear wheels. Where there are twin wheels, the track is the distance between two planes each being the median plane of the pairs of wheels. For track-laying tractors, the track is the distance between the median planes of the tracks.

1.3.3. Additional definition: median plane of the tractor U.K.

Take the extreme positions of points A and B for the tractor rear axle, which gives the maximum possible value for the track. The vertical plane at right angles to the line AB at its centre point is the median plane of the tractor.

1.4. Wheelbase U.K.

The distance between the vertical planes passing through the two lines AB as defined above, one for the front wheels and one for the rear-wheels.

1.5. Determination of seat index point; Seat location and adjustment for test U.K.

1.5.1. Seat index point (SIP)⁽²⁾ U.K.

The seat index point shall be determined in accordance with ISO 5353:1995

1.5.2. Seat location and adjustment for test U.K.

1.5.2.1.

where the seat position is adjustable, the seat must be adjusted to its rear uppermost position;

1.5.2.2.

where the inclination of the backrest is adjustable, it must be adjusted to the mid position;

1.5.2.3.

where the seat is equipped with suspension, the latter must be blocked at mid-travel, unless this is contrary to the instructions clearly laid down by the seat manufacturer;

1.5.2.4.

where the position of the seat is adjustable only lengthwise and vertically, the longitudinal axis passing through the Seat Index Point shall be parallel with the vertical longitudinal plane of the tractor passing through the centre of the steering wheel and not more than 100 mm from that plane.

1.6. Clearance zone U.K.

1.6.1. Reference plane U.K.

The clearance zone is illustrated in figures 7.1 and 7.2. The zone is defined in relation to the reference plane and the Seat Index Point. The reference plane is a vertical plane, generally longitudinal to the tractor and passing through the Seat Index Point and the centre of the steering wheel. Normally the reference plane coincides with the longitudinal median plane of the tractor. This reference plane shall be assumed to move horizontally with the seat and steering wheel during loading but to remain perpendicular to the tractor or the floor of the roll-over protective structure. The clearance zone shall be defined on the basis of Sections 1.6.2 and 1.6.3.

1.6.2. Determination of the clearance zone for tractors with a non-reversible seat U.K.

The clearance zone for tractors with a non-reversible seat is defined in 1.6.2.1 to 1.6.2.13 below and is bounded by the following planes, the tractor being on a horizontal surface, the seat adjusted and located as specified in Sections 1.5.2.1 to 1.5.2.4⁽²⁾, and the steering wheel, where adjustable, adjusted to the mid position for seated driving:

1.6.2.1.

a horizontal plane A₁ B₁ B₂ A₂, (810 + a _v) mm above the Seat Index Point with line B₁B₂ located (a _h-10) mm behind the SIP;

1.6.2.2.

an inclined plane H₁ H₂ G₂ G₁, perpendicular to the reference plane, including both a point 150 mm behind line B₁B₂ and the rearmost point of the seat backrest;

1.6.2.3.

a cylindrical surface A₁ A₂ H₂ H₁ perpendicular to the reference plane, having a radius of 120 mm, tangential to the planes defined in 1.6.2.1 and 1.6.2.2 above;

1.6.2.4.

a cylindrical surface B₁ C₁ C₂ B₂, perpendicular to the reference plane, having a radius of 900 mm extending forward for 400 mm and tangential to the plane defined in 1.6.2.1 above along line B₁B₂;

1.6.2.5.

an inclined plane C₁ D₁ D₂ C₂, perpendicular to the reference plane, joining the surface defined in 1.6.2.4 above and passing 40 mm from the forward external edge of the steering wheel. In the case of a high steering wheel position, this plane extends forward from line B₁B₂ tangentially to the surface defined in 1.6.2.4 above;

1.6.2.6.

a vertical plane D₁ K₁ E₁ E₂ K₂ D₂ perpendicular to the reference plane 40 mm forward of the external edge of the steering wheel;

1.6.2.7.

a horizontal plane E₁ F₁ P₁ N₁ N₂ P₂ F₂ E₂ passing through a point (90-a_v ) mm below the Seat Index Point;

1.6.2.8.

a surface G₁ L₁ M₁ N₁ N₂ M₂ L₂ G₂, if necessary curved from the bottom limit of the plane defined in 1.6.2.2 above to the horizontal plane defined in 1.6.2.7 above, perpendicular to the reference plane, and in contact with the seat backrest throughout its length;

1.6.2.9.

two vertical planes K₁ I₁ F₁ E₁ and K₂ I₂ F₂ E₂ parallel to the reference plane, 250 mm either side of the reference plane, and bounded at the top 300 mm above the plane defined in 1.6.2.7 above;

1.6.2.10.

two inclined and parallel planes A₁ B₁ C₁ D₁ K₁ I₁ L₁ G₁ H₁ and A₂ B₂ C₂ D₂ K₂ I₂ L₂ G₂ H₂ starting from the upper edge of the planes defined in 1.6.2.9 above and joining the horizontal plane defined in 1.6.2.1 above at least 100 mm from the reference plane on the side where the loading is applied;

1.6.2.11.

two portions of vertical planes Q₁ P₁ N₁ M₁ and Q₂ P₂ N₂ M₂ parallel to the reference plane, 200 mm either side of the reference plane, and bounded towards the top 300 mm above the horizontal plane defined in 1.6.2.7 above

1.6.2.12.

two portions of I₁ Q₁ P₁ F₁ and I₂ Q₂ P₂ F₂ of a vertical plane, perpendicular to the reference plane and passing (210-a_h ) mm in front of the SIP;

1.6.2.13.

two portions I₁ Q₁ M₁ L₁ and I₂ Q₂ M₂ L₂ of the horizontal plane passing 300 mm above the plane defined in 1.6.2.7 above.

1.6.3. Determination of the clearance zone for tractors with a reversible driver’s position U.K.

For tractors with a reversible driver’s position (reversible seat and steering wheel), the clearance zone is the envelope of the two clearance zones defined by the two different positions of the steering wheel and the seat.

1.6.3.1.

If the protective structure is a of a rear two-post type, for each position of the steering wheel and of the seat, the clearance zone shall respectively be defined on the basis of above sections 1.6.1 and 1.6.2 for driver’s position in normal position, and on the basis of sections 1.6.1 and 1.6.2 of Annex IX for driver’s position in reverse position (see figure 7.2.a).

1.6.3.2.

If the protective structure is of another type, for each position of the steering wheel and of the seat, the clearance zone shall be defined on the basis of sections 1.6.1 and 1.6.2 of this Annex (see figure 7.2.b).

1.6.4. Optional seats U.K.

1.6.4.1.

In case of tractors that could be fitted with optional seats, the envelope comprising the Seat Index Points of all options offered shall be used during the tests. The protective structure shall not enter the larger clearance zone which takes account of these different Seat Index Points.

1.6.4.2.

In the case where a new seat option is offered after the test has been performed, a determination shall be made to see whether the clearance zone around the new SIP falls within the envelope previously established. If it does not, a new test must be performed.

1.6.4.3.

Optional seat does not include a seat for a person in addition to the driver and from where the tractor cannot be controlled. The SIP shall not be determined because the definition of the clearance zone is in relation to the driver seat.

1.7. Mass U.K.

1.7.1. Unballasted/Unladen Mass U.K.

The mass of the tractor excluding optional accessories but including coolant, oils, fuel, tools plus the protective structure. Not included are optional front or rear weights, tyre ballast, mounted implements, mounted equipment or any specialised components;

1.7.2. Maximum Permissible Mass U.K.

The maximum mass of the tractor stated by the manufacturer to be technically permissible and declared on the vehicle’s identification plate and/or in the Operator’s Handbook;

1.7.3. Reference Mass U.K.

The mass, selected by the manufacturer, used in formulae to calculate the height of fall of the pendulum block, the energy inputs and crushing forces to be used in the tests. Must not be less than the unballasted mass and must be sufficient to ensure the Mass Ratio does not exceed 1,75 (see Section 1.7.4);

1.7.4. Mass Ratio U.K.

The ratio of This must not be greater than 1,75

1.8. Permissible measurement tolerances U.K.

Linear dimension:	± 3 mm
except for: – tyre deflection:	± 1 mm
–structure deflection during horizontal loadings:	± 1 mm
– height of fall of the pendulum block:	± 1 mm
Masses:	± 0,2 % (of the sensor full scale)
Forces:	± 0,1 % (of the sensor full scale)
Angles:	± 0,1°

1.9. Symbols U.K.

a_h (mm)

Half of the horizontal seat adjustment

a_v (mm)

Half of the vertical seat adjustment

B (mm)

Minimum overall width of the tractor;

B₆ (mm)

Maximum outer width of the protective structure;

D (mm)

Deflection of the structure at the point of impact (dynamic tests) or at the point of, and in line with, the load application (static tests);

D’ (mm)

Deflection of the structure for the calculated energy required;

E_a (J)

Strain energy absorbed at point when load is removed. Area contained within F-D curve;

E_i (J)

Strain energy absorbed. Area under F-D curve;

E’_i (J)

Strain energy absorbed after additional loading following a crack or tear;

E’’_i (J)

Strain energy absorbed in overload test in the event of the load having been removed before starting this overload test. Area under F-D curve;

E_il (J)

Energy input to be absorbed during longitudinal loading;

E_is (J)

Energy input to be absorbed during side loading;

F (N)

Static load force;

F’ (N)

Loading force for calculated energy required, corresponding to E’_i ;

F-D

Force/deflection diagram;

F_max (N)

Maximum static load force occurring during loading, with the exception of the overload;

F_v (N)

Vertical crushing force;

H (mm)

Falling height of the pendulum block (dynamic tests);

H’ (mm)

Falling height of the pendulum block for additional test (dynamic tests);

I (kgm²)

Tractor reference moment of inertia about the centre line of the rear wheels, whatever the mass of these rear wheels may be;

L (mm)

Tractor reference wheelbase;

M (kg)

Tractor reference mass during strength tests.

2. Field of application U.K.

2.1. This Annex shall is applicable to tractors having at least two axles for pneumatic tyred wheels or having tracks instead of wheels and having the following characteristics: U.K.

2.1.1.

ground clearance of not more than 600 mm beneath the lowest points of the front and rear axles, allowing for the differential;

2.1.2.

fixed or adjustable minimum track width with one of the axles less than 1 150 mm fitted with tyres of a larger size. It is assumed that the axle mounted with the wider tyres is set at a track width of not more than 1 150 mm. It must be possible to set the track width of the other axle in such a way that the outer edges of the narrower tyres do not go beyond the outer edges of the tyres of the other axle. Where the two axles are fitted with rims and tyres of the same size, the fixed or adjustable track width of the two axles must be less than 1 150 mm;

2.1.3.

mass greater than 400 kg unladen but including the roll-over protective structure and tyres of the largest size recommended by the manufacturer. For tractors with a reversible driver’s position (reversible seat and steering wheel), the unladen mass shall be less than 3 500 kg and the maximum permissible mass shall not exceed 5 250 kg. For all tractors, the Mass Ratio (Maximum Permissible Mass / Reference Mass) must not be greater than 1,75.

2.1.4.

roll-over protective structure of the rollbar, frame or cab type, mounted partly or entirely behind the Seat Index Point and having a zone of clearance whose upper limit is (810 + a_v) mm above the seat index point in order to provide a sufficiently large area or unobstructed space for the protection of the driver.

2.2. It is recognised that there may be designs of tractors, for example, special forestry machines, such as forwarders and skidders, for which this Annex is not applicable. U.K.

B1 STATIC TEST PROCEDURE U.K.

3. Rules and directions U.K.

3.1. Conditions for testing the strength of protective structures and of their attachment to tractors U.K.

3.1.1. General requirements U.K.

3.1.1.1. Test purposes U.K.

Tests made using special rigs are intended to simulate such loads as are imposed on a protective structure, when the tractor overturns. These tests enable observations to be made on the strength of the protective structure and any brackets attaching it to the tractor and any parts of the tractor which transmit the test load.

3.1.1.2. Test methods U.K.

Tests may be performed in accordance with the static procedure or the dynamic procedure (see Annex II). The two methods are deemed equivalent.

3.1.1.3. General rules governing preparation for tests U.K.

3.1.1.3.1. The protective structure must conform to the series production specifications. It shall be attached in accordance with the manufacturer’s recommended method to one of the tractors for which it is designed. U.K.

Note: A complete tractor is not required for the static strength test; however, the protective structure and parts of the tractor to which it is attached represent an operating installation, hereinafter referred to as ‘the assembly’. U.K.

3.1.1.3.2. For both the static test and the dynamic test the tractor as assembled (or the assembly) must be fitted with all series production components which may affect the strength of the protective structure or which may be necessary for the strength test. U.K.

Components which may create a hazard in the clearance zone must also be fitted on the tractor (or the assembly) so that they may be examined to see whether the requirements of the Acceptance Conditions in 3.1.3 have been fulfilled. All components of the tractor or the protective structure including weather protective must be supplied or described on drawings.

3.1.1.3.3. For the strength tests, all panels and detachable non-structural components must be removed so that they may not contribute to the strengthening of the protective structure. U.K.

3.1.1.3.4. The track width must be adjusted so that the protective structure will, as far as possible, not be supported by the tyres or the tracks during the strength tests. If these tests are conducted in accordance with the static procedure, the wheels or tracks may be removed. U.K.

3.1.2. Tests U.K.

3.1.2.1. Sequence of tests according to the Static Procedure U.K.

The sequence of tests, without prejudice to the additional tests mentioned in sections 3.2.1.6, and 3.2.1.7 is as follows:

(1)

loading at the rear of the structure

(see 3.2.1.1);

(2)

rear crushing test

(see 3.2.1.4);

(3)

loading at the front of the structure

(see 3.2.1.2);

(4)

loading at the side of the structure

(see 3.2.1.3);

(5)

crushing at the front of the structure

(see 3.2.1.5).

3.1.2.2. General requirements U.K.

3.1.2.2.1. If, during the test, any part of the tractor restraining equipment breaks or moves, the test shall be restarted. U.K.

3.1.2.2.2. No repairs or adjustments of the tractor or protective structure may be carried out during the tests. U.K.

3.1.2.2.3. The tractor gear box shall be in neutral and the brakes off during the tests. U.K.

3.1.2.2.4. If the tractor is fitted with a suspension system between the tractor body and the wheels, it shall be blocked during the tests. U.K.

[F1 3.1.2.2.5. The side chosen for application of the first load on the rear of the structure shall be that which, in the opinion of the testing authorities, will result in the application of the series of loads under the most unfavourable conditions for the structure. The lateral load shall be applied to the opposite side of the median plane of the tractor than the longitudinal load. The front load shall be applied on the same side of the longitudinal median plane of the protective structure as the lateral load.] U.K.

3.1.3. Acceptance conditions U.K.

3.1.3.1. A protective structure is regarded as having satisfied the strength requirements if it fulfils the following conditions: U.K.

3.1.3.1.1.

during static testing, at the point when the energy required is attained in each horizontal load test prescribed or in the overload test the force must be greater than 0,8 F;

3.1.3.1.2.

if during the test, cracks or tears appear as a result of the application of the crushing force, an additional crushing test as defined in 3.2.1.7 must be performed immediately after the crushing test which caused these cracks or tears to appear;

3.1.3.1.3.

during the tests other than the overload test, no part of the protective structure must enter the clearance zone as defined in 1.6;

3.1.3.1.4.

during the tests other than the overload test, all parts of the clearance zone shall be secured by the structure, in accordance with 3.2.2.2;

3.1.3.1.5.

during the tests the protective structure must not impose any constraints on the seat structure;

3.1.3.1.6.

the elastic deflection, measured in accordance with 3.2.2.3 shall be less than 250 mm.

3.1.3.2. There shall be no accessories presenting a hazard for the driver. There shall be no projecting part or accessory which is liable to injure the driver should the tractor overturn, or any accessory or part which is liable to trap him — for example by the leg or the foot — as a result of the deflections of the structure. U.K.

3.1.4. [Not applicable] U.K.

3.1.5. Test apparatus and equipment U.K.

3.1.5.1. Static testing rig U.K.

3.1.5.1.1. The static testing rig must be designed in such a way as to permit thrusts or loads to be applied to the protective structure. U.K.

3.1.5.1.2. Provision must be made so that the load can be uniformly distributed normal to the direction of loading and along a flange having a length of one of the exact multiples of 50 between 250 and 700 mm. The stiff beam shall have a vertical face dimension of 150 mm. The edges of the beam in contact with the protective structure shall be curved with a maximum radius of 50 mm. U.K.

3.1.5.1.3. The pad shall be capable of being adjusted to any angle in relation to the load direction, in order to be able to follow the angular variations of the structure’s load-bearing surface as the structure deflects. U.K.

3.1.5.1.4. Direction of the force (deviation from horizontal and vertical): U.K.

• at start of test, under zero load: ± 2°;

• during test, under load: 10° above and 20° below the horizontal. These variations must be kept to a minimum.

3.1.5.1.5. The deflection rate shall be sufficiently slow, less than 5 mm/s so that the load may at all moments be considered as static. U.K.

3.1.5.2. Apparatus for measuring the energy absorbed by the structure U.K.

3.1.5.2.1. The force versus deflection curve shall be plotted in order to determine the energy absorbed by the structure. There is no need to measure the force and deflection at the point where the load is applied to the structure; however, force and deflection shall be measured simultaneously and co-linearly. U.K.

3.1.5.2.2. The point of origin of deflection measurements shall be selected so as to take account only of the energy absorbed by the structure and/or by the deflection of certain parts of the tractor. The energy absorbed by the deflection and/or the slipping of the anchoring must be ignored. U.K.

3.1.5.3. Means of anchoring the tractor to the ground U.K.

3.1.5.3.1. Anchoring rails with the requisite track width and covering the necessary area for anchoring the tractor in all the cases illustrated must be rigidly attached to a non-yielding base near the testing rig. U.K.

3.1.5.3.2. The tractor must be anchored to the rails by any suitable means (plates, wedges, wire ropes, jacks, etc.) so that it cannot move during the tests. This requirement shall be checked during the test, by means of the usual devices for measuring length. U.K.

If the tractor moves, the entire test shall be repeated, unless the system for measuring the deflections taken into account for plotting the force versus deflection curve is connected to the tractor.

3.1.5.4. Crushing rig U.K.

A rig as shown in figure 7.3 shall be capable of exerting a downward force on a protective structure through a rigid beam approximately 250 mm wide, connected to the load-applying mechanism by means of universal joints. Suitable axle stands must be provided so that the tractor tyres do not bear the crushing force.

3.1.5.5. Other measuring apparatus U.K.

The following measuring devices are also needed:

3.1.5.5.1.

device for measuring the elastic deflection (the difference between the maximum momentary deflection and the permanent deflection, see figure 7.4).

3.1.5.5.2.

device for checking that the protective structure has not entered the clearance zone and that the latter has remained within the structure’s protective during the test (section 3.2.2.2).

3.2. Static test procedure U.K.

3.2.1. Loading and crushing tests U.K.

3.2.1.1. Loading at the rear U.K.

3.2.1.1.1. The load shall be applied horizontally, in a vertical plane parallel to the tractor’s median plane. U.K.

The load application point shall be that part of the roll-over protective structure likely to hit the ground first in a rearward overturning accident, normally the upper edge. The vertical plane in which the load is applied shall be located at a distance of 1/6 of the width of the top of the protective structure inwards from a vertical plane, parallel to the median plane of the tractor, touching the outside extremity of the top of the protective structure.

If the structure is curved or protruding at this point, wedges enabling the load to be applied thereon shall be added, without thereby reinforcing the structure.

3.2.1.1.2. The assembly shall be lashed to the ground as described in 3.1.6.3. U.K.

3.2.1.1.3. The energy absorbed by the protective structure during the test shall be at least: U.K.

or

3.2.1.1.4. For tractors with a reversible driver’s position (reversible seat and steering wheel), the energy shall be whichever is the higher of the formula selected above or the following: U.K.

3.2.1.2. Loading at the front U.K.

3.2.1.2.1. The load shall be applied horizontally in a vertical plane parallel to the tractor’s median plane. The point of application shall be that part of the protective structure likely to hit the ground first if the tractor overturns sideways while travelling forward, i.e. normally the upper edge. The point of application of the load shall be 1/6 of the width of the top of the protective structure inwards from a vertical plane parallel to the median plane of the tractor touching the outside extremity of the top of the protective structure. U.K.

If the structure is curved or protruding at this point, wedges enabling the load to be applied thereon shall be added, without thereby reinforcing the structure.

3.2.1.2.2. The assembly shall be lashed to the ground as described in 3.1.6.3. U.K.

3.2.1.2.3. The energy absorbed by the protective structure during the test shall be at least: U.K.

3.2.1.2.4. In case of tractors with a reversible driver’s position (reversible seat and steering wheel): U.K.

• if the protective structure is a rear two-post rollbar the preceding formula shall also apply;

• for other types of protective structures, the energy shall be whichever is the higher of the above or either of the following as selected:

  

  or

  

3.2.1.3. Loading from the side U.K.

3.2.1.3.1. The side loading shall be applied horizontally, in a vertical plane perpendicular to the tractor’s median plane passing 60 mm in front of the Seat Index Point, the seat being at the mid position of the longitudinal adjustment. The load application point shall be that part of the roll-over protective structure likely to hit the ground first in a sideways overturning accident, normally the upper edge. U.K.

3.2.1.3.2. The assembly shall be lashed to the ground as described in 3.1.6.3. U.K.

3.2.1.3.3. The energy absorbed by the protective structure during the test shall be at least: U.K.

3.2.1.3.4. For tractors with a reversible driver’s position (reversible seat and steering wheel), the load application point shall be in the plane at right angles to the median plane and passing at the midpoint of the segment joining the two Seat Index Points defined by joining the two different positions of the seat. For protective structures having a two-post system, the load shall be located on one of the two posts. U.K.

3.2.1.3.5. In case of tractors with a reversible driver’s position (reversible seat and steering wheel) where the protective structure is a rear two-post rollbar, the energy shall be whichever is higher of the following: U.K.

or

3.2.1.4. Crushing at the rear U.K.

The beam shall be positioned over the rear uppermost structural member(s) and the resultant of crushing forces shall be located in the tractor’s median plane A force F_v shall be applied where:

The force F_v shall be maintained for five seconds after the cessation of any visually detectable movement of the protective structure.

Where the rear part of the protective structure roof will not sustain the full crushing force, the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the rear of the tractor capable of supporting the tractor when overturned.

The force shall then be removed, and the crushing beam repositioned over that part of the protective structure which would support the tractor when completely overturned. The crushing force F_v shall then be applied again.

3.2.1.5. Crushing at the front U.K.

The beam shall be positioned across the front uppermost structural member(s) and the resultant of crushing forces shall be located in the tractor’s median plane. A force F_v shall be applied where:

The force F_v shall be maintained for five seconds after the cessation of any visually detectable movement of the protective structure.

Where the front part of the protective structure roof will not sustain the full crushing force, the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protective structure with that part of the front of the tractor capable of supporting the tractor when overturned.

The force shall then be removed, and the crushing beam repositioned over that part of the protective structure which would support the tractor when completely overturned. The crushing force F_v shall then be applied again.

3.2.1.6. Additional overload test (figures 7.5 to 7.7) U.K.

An overload test shall be carried out in all cases where the force decreases by more than 3 per cent during the last 5 per cent of the deflection reached when the energy required is absorbed by the structure (see figure 7.6).

The overload test involves the gradual increase of the horizontal load by increments of 5 per cent of the initial energy requirement up to a maximum of 20 per cent of energy added (see figure 7.7).

The overload test is satisfactory if, after each increase by 5, 10 or 15 per cent in the energy required, the force decreases by less than 3 per cent for a 5 per cent increment and remains greater than 0,8 F_max.

The overload test is satisfactory if, after the structure has absorbed 20 per cent of the added energy, the force exceeds 0,8 F_max.

Additional cracks or tears and/or entry into or lack of protective of the clearance zone due to elastic deflection are permitted during the overload test. However, after the removal of the load, the structure shall not enter the clearance zone, which shall be completely protected.

3.2.1.7. Additional crushing tests U.K.

If cracks or tears which cannot be considered as negligible appear during a crushing test, a second, similar crushing, but with a force of 1,2 F_v shall be applied immediately after the crushing test which caused the cracks or tears to appear.

3.2.2. Measurements to be made U.K.

3.2.2.1. Fractures and cracks U.K.

After each test all structural members, joints and attachment systems shall be visually examined for fractures or cracks, any small cracks in unimportant parts being ignored.

3.2.2.2. Entry into the clearance zone U.K.

During each test the protective structure shall be examined to see whether any part of it has entered a clearance zone as defined in 1.6 above.

Furthermore, the clearance zone shall not be outside the protection of the protective structure. For this purpose it is considered to be outside the protection of the roll-over protective structure if any part of it would have come in contact with the ground plane if the tractor had overturned in the direction from which the impact came. For this purpose the front and rear tyres and track setting are assumed to be the smallest specified by the manufacturer.

3.2.2.3. Elastic deflection under side loading U.K.

The elastic deflection shall be measured (810 + a_v ) mm above the Seat Index Point, in the vertical plane in which the load is applied. For this measurement, any apparatus similar to that illustrated in figure 7.4 may be used.

3.2.2.4. Permanent deflection U.K.

After the final crushing test, the permanent deflection of the protective structure shall be recorded. For this purpose, before the start of the test, the position of the main roll-over protective structure members in relation to the Seat Index Point shall be used.

3.3. Extension to other tractor models U.K.

3.3.1. [Not applicable] U.K.

3.3.2. Technical extension U.K.

When technical modifications occur on the tractor, the protective structure or the method of attachment of the protective structure to the tractor, the testing station that has carried out the original test can issue a ‘technical extension report’ in the following cases:

3.3.2.1. Extension of the structural test results to other models of tractors U.K.

Loading and crushing tests need not be carried out on each model of tractor, provided that the protective structure and tractor comply with the conditions referred to hereunder 3.3.2.1.1 to 3.3.2.1.5.

3.3.2.1.1.

The structure shall be identical to the one tested;

3.3.2.1.2.

The required energy shall not exceed the energy calculated for the original test by more than 5 per cent; the 5 % limit shall also apply to extensions in the case of substituting tracks for wheels on the same tractor;

3.3.2.1.3.

The method of attachment and the tractor components to which the attachment is made shall be identical;

3.3.2.1.4.

Any components such as mud-guards and bonnet that may provide support for the protective structure shall be identical;

3.3.2.1.5.

The position and critical dimensions of the seat in the protective structure and the relative position of the protective structure on the tractor shall be such that the clearance zone would have remained within the protection of the deflected structure throughout all tests (this shall be checked by using the same reference of clearance zone as in the original test report, respectively Seat Reference Point [SRP] or Seat Index Point [SIP]).

3.3.2.2. Extension of the structural test results to modified models of the protective structure U.K.

This procedure has to be followed when the provisions of paragraph 3.3.2.1 are not fulfilled, it may not be used when the method of attachment of the protective structure to the tractor does not remain of the same principle (e.g. rubber supports replaced by a suspension device):

3.3.2.2.1.

Modifications having no impact on the results of the initial test (e.g. weld attachment of the mounting plate of an accessory in a non-critical location on the structure), addition of seats with different SIP location in the protective structure (subject to checking that the new clearance zone(s) remain(s) within the protection of the deflected structure throughout all tests).

3.3.2.2.2.

Modifications having a possible impact on the results of the original test without calling into question the acceptability of the protective structure (e.g. modification of a structural component, modification of the method of attachment of the protective structure to the tractor). A validation test can be carried out and the test results will be drafted in the extension report.

The following limits for this type extension are fixed:

3.3.2.2.2.1.

no more than 5 extension may be accepted without a validation test;

3.3.2.2.2.2.

the results of the validation test will be accepted for extension if all the acceptance conditions of this Annex are fulfilled and:

• if the deflection measured after each impact test does not deviate from the deflection measured after each impact test in the original test report by more than ± 7 % (in case of a dynamic test);

• if the force measured when the required energy level has been reached in the various horizontal load tests does not deviate from the force measured when the required energy has been reached in the original test by more than ± 7 % and the deflection measured⁽³⁾ when the required energy level has been reached in the various horizontal load tests does not deviate from the deflection measured when the required energy has been reached in the original test by more than ± 7 % (in case of a static test).

3.3.2.2.2.3.

more than one protective structure modifications may be included in a single extension report if they represent different options of the same protective structure, but only one validation test can be accepted in a single extension report. The options not tested shall be described in a specific section of the extension report.

3.3.2.2.3.

Increase of the reference mass declared by the manufacturer for a protective structure already tested. If the manufacturer wants to keep the same approval number it is possible to issue an extension report after having carried out a validation test (the limits of ± 7 % specified in 3.3.2.2.2.2 are not applicable in such a case).

3.4. [Not applicable] U.K.

3.5. Cold weather performance of protective structures U.K.

3.5.1. If the protective structure is claimed to have properties resistant to cold weather embrittlement, the manufacturer shall give details that shall be included in the report. U.K.

3.5.2. The following requirements and procedures are intended to provide strength and resistance to brittle fracture at reduced temperatures. It is suggested that the following minimum material requirements shall be met in judging the protective structure’s suitability at reduced operating temperatures in those countries requiring this additional operating protection. U.K.

3.5.2.1. Bolts and Nuts used to attach the protective structure to the tractor and used to connect structural parts of the protective structure shall exhibit suitable controlled reduced temperature toughness properties. U.K.

3.5.2.2. All welding electrodes used in the fabrication of structural members and mounts shall be compatible with the protective structure material as given in 3.5.2.3 below. U.K.

3.5.2.3. Steel materials for structural members of the protective structure shall be of controlled toughness material exhibiting minimum Charpy V-Notch impact energy requirements as shown in Table 7.1. Steel grade and quality shall be specified in accordance with ISO 630:1995. U.K.

Steel with an as-rolled thickness less than 2.5 mm and with a carbon content less than 0,2 per cent is considered to meet this requirement.

Structural members of the protective structure made from materials other than steel shall have equivalent low temperature impact resistance.

3.5.2.4. When testing the Charpy V-Notch impact energy requirements, the specimen size shall be no less than the largest of the sizes stated in Table 7.1 that the material will permit. U.K.

3.5.2.5. The Charpy V-Notch tests shall be made in accordance with the procedure in ASTM A 370-1979, except for specimen sizes that shall be in accordance with the dimensions given in U.K.

Table 7.1

Minimum Charpy V-notch impact energies

a Indicates preferred size. Specimen size shall be no less than largest preferred size that the material permits.
b The energy requirement at – 20 °C is 2,5 times the value specified for – 30 °C. Other factors affect impact energy strength, i.e. direction of rolling, yield strength, grain orientation and welding. These factors shall be considered when selecting and using steel.
Specimen size	Energy at	Energy at
	– 30 °C	– 20 °C
mm	J	Jb
10 × 10a	11	27,5
10 × 9	10	25
10 × 8	9,5	24
10 × 7,5a	9,5	24
10 × 7	9	22,5
10 × 6,7	8,5	21
10 × 6	8	20
10 × 5a	7,5	19
10 × 4	7	17,5
10 × 3,5	6	15
10 × 3	6	15
10 × 2,5a	5,5	14

3.5.2.6. Alternatives to this procedure are the use of killed or semi-killed steel for which an adequate specification shall be provided. Steel grade and quality shall be specified in accordance with ISO 630:1995, Amd 1:2003. U.K.

3.5.2.7. Specimens are to be longitudinal and taken from flat stock, tubular or structural sections before forming or welding for use in the protective structure. Specimens from tubular or structural sections are to be taken from the middle of the side of greatest dimension and shall not include welds. U.K.

3.6. [Not applicable] U.K.

Figure 7.1 U.K. Clearance zone U.K.Dimensions in mm U.K.

Figure 7.1.a Side view Section in reference plan

Figure 7.1.b Rear view

Figure 7.1.c

Seen from above

1

–

Seat index point

2

–

Reference plane

Figure 7.2.a

Clearance zone for tractors with reversible seat position: two-post rollbar

Figure 7.2.b

Clearance zone for tractors with reversible seat position: other types of ROPS

Figure 7.3

Example of crushing rig of the tractor

Figure 7.4

Example of apparatus for measuring elastic deflection

1

–

Permanent deflection

2

–

Elastic deflection

3

–

Total deflection (permanent plus elastic)

Figure 7.5

Force/deflection curve

Overload test not necessary

Notes: U.K.

1. Locate F_a in relation to 0,95 D’ U.K.

2. Overload test not necessary as F_a ≤ 1,03 F’ U.K.

Figure 7.6

Force / deflection curve

Overload test necessary

Notes: U.K.

1. Locate F_a in relation to 0,95 D’ U.K.

2. Overload test necessary as F_a > 1,03 F’ U.K.

3. Overload test performance satisfactory as F_b > 0,97 F’ and F_b > 0,8 F_max. U.K.

Figure 7.7

Force/deflection curve

Overload test to be continued

Notes: U.K.

1. Locate F_a in relation to 0,95 D’ U.K.

2. Overload test necessary as F_a > 1,03 F’ U.K.

3. F_b < 0,97 F’ therefore further overload necessary U.K.

4. F_c < 0,97 F_b therefore further overload necessary U.K.

5. F_d < 0,97 F_c therefore further overload necessary U.K.

6. Overload test performance satisfactory, if F_e > 0,8 F_max U.K.

7. Failure at any stage when load drops below 0,8 F_max. U.K.

B2. ALTERNATIVE DYNAMIC TEST PROCEDURE U.K.

This section sets out the dynamic testing procedure alternative to the static test procedure set out in section B1.

4. Rules and directions U.K.

4.1. Conditions for testing the strength of protective structures and of their attachment to tractors U.K.

4.1.1. General requirements U.K.

See requirements stated for static testing in section B1

4.1.2. Tests U.K.

4.1.2.1. Sequence of tests according to the Dynamic Procedure U.K.

The sequence of tests, without prejudice to the additional tests mentioned in sections 4.2.1.6 and 4.2.1.7 is as follows:

(1)

impact at the rear of the structure

(see 4.2.1.1);

(2)

rear crushing test

(see 4.2.1.4);

(3)

impact at the front of the structure

(see 4.2.1.2);

(4)

impact at the side of the structure

(see 4.2.1.3);

(5)

crushing at the front of the structure

(see 4.2.1.5).

4.1.2.2. General requirements U.K.

4.1.2.2.1. If, during the test, any part of the tractor restraining equipment breaks or moves, the test shall be restarted. U.K.

4.1.2.2.2. No repairs or adjustments of the tractor or protective structure may be carried out during the tests. U.K.

4.1.2.2.3. The tractor gear box shall be in neutral and the brakes off during the tests. U.K.

4.1.2.2.4. If the tractor is fitted with a suspension system between the tractor body and the wheels, it shall be blocked during the tests. U.K.

4.1.2.2.5. The side chosen for application of the first impact on the rear of the structure shall be that which, in the opinion of the testing authorities, will result in the application of the series of impacts or loads under the most unfavourable conditions for the structure. The lateral impact and the rear impact shall be applied on both sides of the longitudinal median plane of the protective structure. The front impact shall be applied on the same side of the longitudinal median plane of the protective structure as the lateral impact. U.K.

4.1.3. Acceptance conditions U.K.

4.1.3.1. A protective structure is regarded as having satisfied the strength requirements if it fulfils the following conditions: U.K.

4.1.3.1.1.

after each test it shall be free from tears or cracks, as defined in 4.2.1.2.1. If significant tears or cracks appear during the test, an additional impact test or crushing test as defined in 4.2.1.6 or 4.2.1.7 must be performed immediately after the test which caused these tears or cracks to appear;

4.1.3.1.2.

during the tests other than the overload test, no part of the protective structure must enter the clearance zone as defined in 1.6;

4.1.3.1.3.

during the tests other than the overload test, all parts of the clearance zone shall be secured by the structure, in accordance with 4.2.2.2;

4.1.3.1.4.

during the tests the protective structure must not impose any constraints on the seat structure;

4.1.3.1.5.

the elastic deflection, measured in accordance with 4.2.2.3 shall be less than 250 mm.

4.1.3.2. There shall be no accessories presenting a hazard for the driver. There shall be no projecting part or accessory which is liable to injure the driver should the tractor overturn, or any accessory or part which is liable to trap him — for example by the leg or the foot — as a result of the deflections of the structure. U.K.

4.1.4. [Not applicable] U.K.

4.1.5. Apparatus and equipment for dynamic tests U.K.

4.1.5.1. Pendulum block U.K.

4.1.5.1.1. A block acting as a pendulum must be suspended by two chains or wire ropes from pivot points not less than 6 m above the ground. Means must be provided for adjusting independently the suspended height of the block and the angle between the block and the supporting chains or wire ropes. U.K.

4.1.5.1.2. The mass of the pendulum block must be 2 000 ± 20 kg excluding the mass of the chains or wire ropes which themselves must not exceed 100 kg. The length of the sides of the impact face must be 680 ± 20 mm (see figure 7.18). The block must be filled in such a way that the position of its centre of gravity is constant and coincides with the geometrical centre of the parallelepiped. U.K.

4.1.5.1.3. The parallelepiped must be connected to the system which pulls it backwards by an instantaneous release mechanism which is so designed and located as to enable the pendulum block to be released without causing the parallelepiped to oscillate about its horizontal axis perpendicular to the pendulum’s plane of oscillation. U.K.

4.1.5.2. Pendulum supports U.K.

The pendulum pivot points must be rigidly fixed so that their displacement in any direction does not exceed 1 per cent of the height of fall.

4.1.5.3. Lashings U.K.

4.1.5.3.1. Anchoring rails with the requisite track width and covering the necessary area for lashing the tractor in all the cases illustrated (see figures 7.19, 7.20 and 7.21) must be rigidly attached to a non-yielding base beneath the pendulum. U.K.

4.1.5.3.2. The tractor shall be lashed to the rails by means of wire rope with round strand, fibre core, construction 6 × 19 in accordance with ISO 2408:2004 and a nominal diameter of 13 mm. The metal strands must have an ultimate tensile strength of 1 770 MPa. U.K.

4.1.5.3.3. The central pivot of an articulated tractor shall be supported and lashed down as appropriate for all tests. For the lateral impact test, the pivot shall also be propped from the side opposite the impact. The front and rear wheels or tracks need not be in line if this facilitates the attachment of the wire ropes in the appropriate manner. U.K.

4.1.5.4. Wheel prop and beam U.K.

4.1.5.4.1. A softwood beam of 150 mm square shall be used as a prop for the wheels during the impact tests (see figures 7.19, 7.20 and 7.21). U.K.

4.1.5.4.2. During the lateral impact tests, a softwood beam shall be clamped to the floor to brace the rim of the wheel opposite the side of impact (see figure 7.21). U.K.

4.1.5.5. Props and lashings for articulated tractors U.K.

4.1.5.5.1. Additional props and lashings must be used for articulated tractors. Their purpose is to ensure that the section of the tractor on which the protective structure is fitted is as rigid as that of a non-articulated tractor. U.K.

4.1.5.5.2. Additional specific details are given in section 4.2.1 for the impact and crushing tests. U.K.

4.1.5.6. Tyre pressures and deflections U.K.

4.1.5.6.1. The tractor tyres shall not be liquid-ballasted and shall be inflated to the pressures prescribed by the tractor manufacturer for field work. U.K.

4.1.5.6.2. The lashings shall be tensioned in each particular case such that the tyres undergo a deflection equal to 12 per cent of the tyre wall height (distance between the ground and the lowest point of the rim) before tensioning. U.K.

4.1.5.7. Crushing rig U.K.

A rig as shown in figure 7.3 shall be capable of exerting a downward force on a protective structure through a rigid beam approximately 250 mm wide connected to the load-applying mechanism by means of universal joints. Suitable axle stands shall be provided so that the tractor tyres do not bear the crushing force.

4.1.5.8. Measuring apparatus U.K.

The following measuring apparatus is needed:

4.1.5.8.1.

device for measuring the elastic deflection (the difference between the maximum momentary deflection and the permanent deflection, see figure 7.4).

4.1.5.8.2.

device for checking that the protective structure has not entered the clearance zone and that the latter has remained within the structure’s protective during the test (see section 4.2.2.2).

4.2. Dynamic test procedure U.K.

4.2.1. Impact and crushing tests U.K.

4.2.1.1. Impact at the rear U.K.

4.2.1.1.1. The tractor shall be so placed in relation to the pendulum block that the block will strike the protective structure when the impact face of the block and the supporting chains or wire ropes are at an angle with the vertical plane A equal to M/100 with a 20° maximum, unless, during deflection, the protective structure at the point of contact forms a greater angle to the vertical. In this case the impact face of the block shall be adjusted by means of an additional support so that it is parallel to the protective structure at the point of impact at the moment of maximum deflection, the supporting chains or wire ropes remaining at the angle defined above. U.K.

The suspended height of the block shall be adjusted and necessary steps taken so as to prevent the block from turning about the point of impact.

The point of impact is that part of the protective structure likely to hit the ground first in a rearward overturning accident, normally the upper edge. The position of the centre of gravity of the block is 1/6 of the width of the top of the protective structure inwards from a vertical plane parallel to the median plane of the tractor touching the outside extremity of the top of the protective structure.

If the structure is curved or protruding at this point, wedges enabling the impact to be applied thereon must be added, without thereby reinforcing the structure.

4.2.1.1.2. The tractor must be lashed to the ground by means of four wire ropes, one at each end of both axles, arranged as indicated in figure 7.19. The spacing between the front and rear lashing points must be such that the wire ropes make an angle of less than 30° with the ground. The rear lashings must in addition be so arranged that the point of convergence of the two wire ropes is located in the vertical plane in which the centre of gravity of the pendulum block travels. U.K.

The wire ropes must be tensioned so that the tyres undergo the deflections given in 4.1.5.6.2. With the wire ropes tensioned, the wedging beam shall be placed in front of and tight against the rear wheels and then fixed to the ground.

4.2.1.1.3. If the tractor is of the articulated type, the point of articulation shall, in addition, be supported by a wooden block at least 100 mm square and firmly lashed to the ground. U.K.

4.2.1.1.4. The pendulum block shall be pulled back so that the height of its centre of gravity above that at the point of impact is given by one of the following two formulae: U.K.

or

The pendulum block is then released and strikes the protective structure.

4.2.1.1.5. For tractors with a reversible driver’s position (reversible seat and steering wheel), the height shall be whichever is greater of either of the above or either of the following: U.K.

for tractor with a reference mass of less than 2 000 kg;

for tractor with a reference mass of more than 2 000 kg.

4.2.1.2. Impact at the front U.K.

4.2.1.2.1. The tractor shall be so placed in relation to the pendulum block that the block will strike the protective structure when the impact face of the block and the supporting chains or wire ropes are at an angle with the vertical plane A equal to M/100 with a 20° maximum, unless, during deflection, the protective structure at the point of contact forms a greater angle to the vertical. In this case the impact face of the block shall be adjusted by means of an additional support so that it is parallel to the protective structure at the point of impact at the moment of maximum deflection, the supporting chains or wire ropes remaining at the angle defined above. U.K.

The suspended height of the pendulum block shall be adjusted and the necessary steps taken so as to prevent the block from turning about the point of impact.

The point of impact is that part of the protective structure likely to hit the ground first if the tractor overturned sideways while travelling forward, normally the upper edge. The position of the centre of gravity of the block is 1/6 of the width of the top of the protective structure inwards from a vertical plane parallel to the median plane of the tractor touching the outside extremity of the top of the protective structure.

If the structure is curved or protruding at this point, wedges enabling the impact to be applied thereon must be added, without thereby reinforcing the structure.

4.2.1.2.2. The tractor must be lashed to the ground by means of four wire ropes, one at each end of both axles, arranged as indicated in figure 7.20. The spacing between the front and rear lashing points must be such that the wire ropes make an angle of less than 30° with the ground. The rear lashings must in addition be so arranged that the point of convergence of the two wire ropes is located in the vertical plane in which the centre of gravity of the pendulum block travels. U.K.

The wire ropes must be tensioned so that the tyres undergo the deflections given in 4.1.5.6.2. With the wire ropes tensioned, the wedging beam shall be placed behind and tight against the rear wheels and then fixed to the ground.

4.2.1.2.3. If the tractor is of the articulated type, the point of articulation shall, in addition, be supported by a wooden block at least 100 mm square and firmly lashed to the ground. U.K.

4.2.1.2.4. The pendulum block shall be pulled back so that the height of its centre of gravity above that at the point of impact is given by one of the following two formulae, to be chosen according to the reference mass of the assembly subjected to the tests: U.K.

for tractor with a reference mass of less than 2 000 kg;

for tractor with a reference mass of more than 2 000 kg.

The pendulum block is then released and strikes the protective structure.

4.2.1.2.5. In case of tractors with a reversible driver’s position (reversible seat and steering wheel): U.K.

• if the protective structure is a rear two-post rollbar, the above formula shall apply;

• for other types of protective structure, the height shall be whichever is greater from the formula applied above and that selected below:

  

  or

  

  The pendulum block is then released and strikes the protective structure.

4.2.1.3. Impact from the side U.K.

4.2.1.3.1. The tractor shall be so placed in relation to the pendulum block that the block will strike the protective structure when the impact face of the block and the supporting chains or wire ropes are vertical unless, during deflection, the protective structure at the point of contact forms an angle of less than 20° to the vertical. In this case the impact face of the block shall be adjusted by means of an additional support so that it is parallel to the protective structure at the point of impact at the moment of maximum deflection, the supporting chains or wire ropes remaining vertical on impact. U.K.

4.2.1.3.2. The suspended height of the pendulum block shall be adjusted and necessary steps taken so as to prevent the block from turning about the point of impact. U.K.

4.2.1.3.3. The point of impact shall be that part of the protective structure likely to hit the ground first in a sideways overturning accident, normally the upper edge. Unless it is certain that another part of this edge would hit ground first, the point of impact shall be in the plane at right angles to the median plane and passing 60 mm in front of the Seat Index Point, the seat being set at the mid position of longitudinal adjustment. U.K.

4.2.1.3.4. For tractors with a reversible driver’s position (reversible seat and steering wheel), the point of impact shall be in the plane at right angles to the median plane and passing at the midpoint of the segment joining the two Seat Index Points defined by joining the two different positions of the seat. For protective structures having a two-post system, the impact shall be located on one of the two posts. U.K.

4.2.1.3.5. The tractor wheels on the side which is to receive the impact must be lashed to the ground by means of wire ropes passing over the corresponding ends of the front and rear axles. The wire ropes must be tensioned to produce the tyre deflection values given in 4.1.5.6.2. U.K.

With the wire ropes tensioned, the wedging beam shall be placed on the ground, pushed tight against the tyres on the side opposite that which is to receive the impact and then fixed to the ground. It may be necessary to use two beams or wedges if the outer sides of the front and rear tyres are not in the same vertical plane. The prop shall then be placed as indicated in figure 7.21 against the rim of the most heavily loaded wheel opposite to the point of impact, pushed firmly against the rim and then fixed at its base. The length of the prop shall be such that it makes an angle of 30° ± 3° with the ground when in position against the rim. In addition, its thickness shall, if possible, be between 20 and 25 times less than its length and between 2 and 3 times less than its width. The props shall be shaped at both ends as shown in the details on figure 7.21.

4.2.1.3.6. If the tractor is of the articulated type, the point of articulation shall in addition be supported by a wooden block at least 100 mm square and laterally supported by a device similar to the prop pushed against the rear wheel as in 4.2.1.3.5. The point of articulation shall then be lashed firmly to the ground. U.K.

4.2.1.3.7. The pendulum block shall be pulled back so that the height of its centre of gravity above that at the point of impact is given by one of the following two formulae, to be chosen according to the reference mass of the assembly subjected to the tests: U.K.

for tractors with a reference mass of less than 2 000 kg;

for tractors with a reference mass of more than 2 000 kg.

4.2.1.3.8. In case of tractors with a reversible driver’s position (reversible seat and steering wheel): U.K.

• if the protective structure is a rear two-post rollbar, the selected height shall be whichever is greater from the formulae applicable above and below:

  

  for tractor with a reference mass of less than 2 000 kg;

  

  for tractor with a reference mass of more than 2 000 kg.

• for other types of protective structures, the selected height shall be whichever is greater from the formulae applicable above and below:

  

  for tractor with a reference mass less than 2 000 kg;

  

  for tractor with a reference mass of more than 2 000 kg.

  The pendulum block is then released and strikes the protective structure.

4.2.1.4. Crushing at the rear U.K.

All provisions are identical to those given in point 3.2.1.4 of section B1 to this Annex.

4.2.1.5. Crushing at the front U.K.

All provisions are identical to those given in section 3.2.1.5 of section B1 to this Annex.

[F3 4.2.1.6. Additional impact tests U.K.

If cracks or tears which cannot be considered negligible appear during an impact test, a second, similar test, but with a height of fall of:

shall be performed immediately after the impact tests causing these tears or cracks to appear, ‘ a ’ being the ratio of the permanent deformation (Dp) to the elastic deformation (De):

as measured at the point of impact. The additional permanent deformation due to the second impact shall not exceed 30 per cent of the permanent deformation due to the first impact.

In order to be able to carry out the additional test, it is necessary to measure the elastic deformation during all the impact tests.]

4.2.1.7. Additional crushing tests U.K.

If during a crushing test, significant cracks or tears appear, a second, similar, crushing test, but with a force equal to 1,2 F_v shall be performed immediately after the crushing tests which caused these tears or cracks to appear.

4.2.2. Measurements to be made U.K.

4.2.2.1. Fractures and cracks U.K.

After each test all structural members, joints and fastening systems shall be visually examined for fractures or cracks, any small cracks in unimportant parts being ignored.

Any tears caused by the edges of the pendulum weight are to be ignored.

4.2.2.2. Entry into the clearance zone U.K.

During each test the protective structure shall be examined to see whether any part it has entered a clearance zone round the driving seat as defined in 1.6.

Furthermore, the clearance zone shall not be outside the protection of the protective structure. For this purpose, it shall be considered to be outside the protection of the structure if any part of it would come in contact with flat ground if the tractor overturned towards the direction from which the test load is applied. For estimating this, the front and rear tyres and track width setting shall be the smallest standard fitting specified by the manufacturer.

4.2.2.3. Elastic deflection (under side impact) U.K.

The elastic deflection shall be measured (810 + av) mm above the Seat Index Point, in the vertical plane in which the load is applied. For this measurement, any apparatus similar to that illustrated in figure 7.4 may be used.

4.2.2.4. Permanent deflection U.K.

After the final crushing test, the permanent deflection of the protective structure shall be recorded. For this purpose, before the start of the test, the position of the main roll-over protective structure members in relation to the Seat Index Point shall be used.

4.3. Extension to other tractor models U.K.

All provisions are identical to those given in section 3.3 of section B1 to this Annex.

4.4. [Not applicable] U.K.

4.5. Cold weather performance of protective structures U.K.

All provisions are identical to those given in section 3.5 of section B1 to this Annex.

Figure 7.18

Pendulum block and its suspending chains or wire ropes

Figure 7.19

Example of tractor lashing (rear impact)

Figure 7.20

Example of tractor lashing (front impact)

Figure 7.21

Example of tractor lashing (side impact)

[F2 B3 PERFORMANCE REQUIREMENTS FOR FOLDABLE ROLL-OVER PROTECTION STRUCTURES U.K.

5.1. Scope U.K.

This Section provides minimum performance and tests requirements for rear mounted foldable ROPS which are raised and/or lowered manually by a standing operator (with or without partial assistance) and locked manually or automatically.

5.2. For the purposes of this section, the following definitions shall apply: U.K.

5.2.1.

‘ hand-operated foldable ROPS ’ is a rear-mounted dual pillar protective structure with hand raising/lowering directly managed by the operator (with or without partial assistance);

5.2.2.

‘ automatic foldable ROPS ’ is a rear-mounted dual pillar protective structure with full assisted raising/lowering operations;

5.2.3.

‘ locking system ’ is a device fitted to lock, by hand or automatically, the ROPS in the raised or lowered positions;

5.2.4.

‘ grasping area ’ is an area defined by the manufacturer as a portion of the ROPS and/or additional handle fitted to the ROPS where the operator is allowed to carry out the raising/lowering operations;

5.2.5.

‘ accessible part of the grasping area ’ is the area where the ROPS is handled by the operator during the raising/lowering operations; this area shall be defined with regard to the geometric centre of cross sections of the grasping area;

5.2.6.

‘ accessible zone ’ is the volume where a standing operator can apply a force in order to raise/lower the ROPS;

5.2.7.

‘ pinching point ’ is a point where parts move in relation to each other or to fixed parts in such a way as may cause persons or certain parts of their bodies to be pinched;

5.2.8.

‘ shear point ’ is a point where parts move along each other or along other parts in such a way as may cause persons or certain parts of their bodies to be pinched or shorn;

5.2.9.

‘ place to stand ’ is a place on the tractor platform accessible from the driving position main access with sufficient space for a standing operator.

5.3. Hand-operated foldable ROPS U.K.

5.3.1. Prior conditions for the test U.K.

5.3.1.1. Grasping area U.K.

The manual handling shall be done by a standing operator with one or more grasps on grasping area of the roll-bar.

The roll-bar can be handled from the ground or from a place to stand on the platform (Figures 7.8a and 7.8b).

The operator can handle the roll-bar in parallel with or in front of its trajectory.

A multiple step process with multiple operator positions and multiple defined grasping areas is allowed.

The grasping area shall be clearly and permanently identified (Figure 7.9).

This area has to be designed without sharp edges, sharp angles and rough surfaces likely to cause injury to the operator.

This area could be on one or both sides of the tractor and could be a structural part of the roll-bar or additional handles. In this grasping area the manual handling to raise or lower the roll-bar shall not create shearing, pinching or uncontrollable movement hazards to the operator.

5.3.1.2. Accessible zones U.K.

Three accessible zones with different amount of allowed force are defined with respect to horizontal plane of the ground and the vertical planes tangent to the outer parts of the tractor that limit the position or the displacement of the operator (Figure 7.10).

Zone I: comfort zone

Zone II: accessible zone without forward leaning of the body

Zone III: accessible zone with forward leaning of the body

Handling of the roll-bar in parallel with its trajectory

• The position and the movement of the operator are limited by obstacles. These are parts of the tractor and are defined by vertical planes tangent to the external edges of the obstacle.

• If the operator needs to move the feet during the manual handling of the roll-bar a displacement is allowed either within a parallel plane to the roll-bar trajectory or within just one more parallel plane to the previous one so as to overcome an obstacle. The overall displacement shall be considered as a combination of straight lines parallel and perpendicular to the roll-bar trajectory. A perpendicular displacement is accepted provided that the operator comes closer to the roll-bar. The accessible area shall be considered as the envelope of the different accessible zones (Figure 7.11).

Handling of the roll-bar in front of its trajectory:

• Only for handling of the roll-bar in front of its trajectory are considered as accessible extensions of the zone II and zone III (Figure 7.12). In these extensions the acceptable actuation forces are the same ones as respectively in zone II and in the zone III.

• If the operator needs to move during the manual handling of the roll-bar it must be done so by a displacement without any obstacle within a plane parallel to the roll-bar trajectory.

In this case the accessible area shall be considered as the envelope of the different accessible zones.

5.3.1.3. Place to stand U.K.

Any place to stand on the platform declared by the manufacturer shall be accessible from the main access to the driving position and fulfil the following requirements:

• A place provided for standing shall have sufficient space for both of the operator's feet, be flat and have a slip-resistant surface. Depending on the machine configuration, it may consist of two separate surfaces and may use machine components. It shall be positioned so that the operator can maintain stability while carrying out the service required and be on the same height level with a tolerance of ± 50 mm.

• Handhold(s) and/or railings shall be provided in order to allow three-point contact. Parts of the machine can be considered to fulfil this requirement.

It is considered that a place for standing has sufficient space if its surface is at least a square in cross section of 400 mm per side (Figure 7.13).

Alternatively the place to stand requirement may be met by providing sufficient space for one foot on a flat surface and one knee on the seat.

5.3.1.4. Test conditions U.K.

The tractor must be fitted with tyres having the greatest diameter indicated by the manufacturer and the smallest cross-section for tyres of that diameter. The tyres must be inflated to the pressure recommended for field work.

The rear wheels must be set to the narrowest track width; the front wheels must be set as closely as possible to the same track width. If it is possible to have two front track settings which differ equally from the narrowest rear track setting, the wider of these two front track settings must be selected.

5.3.2. Test procedure U.K.

The aim of the test is to measure the force necessary to raise or lower the roll-bar. The test will be carried out in static condition: no initial movement of the roll-bar. Each measurement of the force necessary to raise or lower the roll-bar shall be made in a direction tangent to the trajectory of the roll-bar and passing through the geometric centre of cross sections of the grasping area.

The grasping area is considered accessible when located within the accessible zones or the envelope of different accessible zones (Figure 7.14).

The force necessary to raise and lower the roll-bar shall be measured in different points that are within the accessible part of the grasping area (Figure 7.15).

The first measure is carried out at the extremity of the accessible part of the grasping area when the roll-bar is fully lowered (Point 1 in Figure 7.15).

The second measure is defined according to the position of Point 1 after rotation of the roll-bar up to the point where the perpendicular to the trajectory of the roll-bar is vertical (Point 2 in Figure 7.15).

The third measure is carried out after rotation of the roll-bar up to the top of the accessible part of the grasping area (Point 3 in Figure 7.15).

If in this third measure the roll-bar is not fully raised, a point shall be measured at the extremity of the accessible part of the grasping area when the roll bar is fully raised (Point 4 in Figure 7.15).

If between point 1 and point 3 the trajectory of extremity of the accessible part of the grasping area crosses the limit between Zone I and Zone II an additional measurement shall be made at this point (Figure 7.16).

The maximum forces in these points shall not exceed the acceptable force of the zone (I, II or III).

In order to measure the force in the required points, it is possible either to measure directly the value or to measure the torque needed to raise or lower the roll-bar so as to calculate the force.

5.3.3. Condition of acceptance U.K.

5.3.3.1. Force requirement U.K.

The force acceptable for the actuation of the ROPS depends on the accessible zone as shown in Table 7.2.

Table 7.2

Allowed forces

Zone	I	II	III
Acceptable force (N)	100	75	50

An increase of no more than 25 % of these acceptable forces is allowed when the roll-bar is fully lowered and fully raised.

An increase of no more than 25 % of these acceptable forces is allowed if the roll-bar is handled in front of its trajectory.

An increase of no more than 50 % of these acceptable forces is allowed in the lowering operation.

5.3.3.2. Additional requirements U.K.

The manual handling to raise or lower the roll-bar shall not create shearing, pinching or uncontrollable movement hazards to the operator.

A pinching point is not considered dangerous for the operator hands part if in the grasping area the safety distances between the roll-bar and fixed parts of the tractor are no less than 100 mm for hand, wrist, fist and 25 mm for finger (ISO 13854:1996). The safety distances shall be checked with respect to the mode of handling foreseen by the manufacturer in the operator's manual.

5.4. Hand locking system U.K.

The device fitted to lock the ROPS in the upright/lowered position must be designed:

• to be handled by one standing operator and located in one of the accessible zones;

• to be hardly separated from the ROPS (for example captive pins as locking pins or retaining pins);

• to avoid any confusion in the locking operation (the proper location of the pins shall be indicated);

• to avoid unintentional removing or losing of parts.

If the devices employed to lock the ROPS in the upright/lowered position are pins they shall be inserted or removed freely. If to do so there is a need to apply a force on the roll-bar this shall comply with the requirements of points 1 and 3 or 4 (see point 5.3).

For all other locking devices, they shall be engineered according to an ergonomic approach for what concerns the shape and the force especially avoiding pinching or shearing hazards.

5.5. Preliminary test of automatic locking system U.K.

An automatic locking system fitted on hand-operated foldable ROPS has to be submitted to a preliminary test before the ROPS strength test.

The roll-bar shall be moved from the lower position to the upright locked position and back. These operations correspond to one cycle. 500 cycles shall be completed.

This could be done manually or with the use of external energy (hydraulic, pneumatic or electric actuators). In both cases the force shall be applied within a plane parallel to the trajectory of the roll-bar and passing through the grasping area, the angular speed of the roll-bar shall be roughly constant and less than 20 deg/s.

After the 500 cycles, the force applied when the roll-bar is in the upright position shall not exceed by more than 50 % the allowed force (Table 7.2).

The unlocking of the roll-bar shall be done following the operator manual.

After the completion of the 500 cycles there shall be no maintenance or adjustment on the locking system.

Note 1: The preliminary test could be applied to automatic foldable ROPS systems as well. The test should be carried out before the ROPS strength test. U.K.

Note 2: The preliminary test could be carried out by the manufacturer. In such a case the manufacturer shall provide the test station with a certificate stating that the test has been done according the test procedure and that there was no maintenance or adjustment on the locking system after the completion of the 500 cycles. The test station will check the performance of the device with one cycle from the lower position to the upright locked position and back.] U.K.

Explanatory notes to Annex X U.K.

^{[F1 (1)} Unless the numbering of sections B2 and B3 which has been harmonised with the whole Annex, the text of the requirements and the numbering set out in point B are identical with the text and numbering of the OECD standard Code for the official testing of rear mounted roll-over protective structures on narrow-track wheeled agricultural and forestry tractors, OECD standard Code 7, Edition 2017 of February 2017.] U.K.

⁽²⁾ Users are reminded that the seat index point is determined according to ISO 5353:1995 and is a fixed point with respect to the tractor that does not move as the seat is adjusted away from the mid-position. For purposes of determining the clearance zone, the seat shall be placed in the rear and uppermost position. U.K.

⁽³⁾ Permanent + elastic deflection measured at the point when the required energy level is obtained. U.K.

ANNEX XI

Requirements applying to falling objects protection structures U.K.

A. GENERAL PROVISION U.K.

1. The Union requirements applying to falling objects protection structures are set out in sections B and C. U.K.

2. Vehicles of categories T and C equipped for forestry applications shall comply with the requirements laid down in section B. U.K.

3. All other vehicles of categories T and C, if equipped with falling objects protection structures, shall comply with the requirements laid down in section B or C. U.K.

B. REQUIREMENTS APPLYING TO FALLING OBJECTS PROTECTION STRUCTURES FOR VEHICLES OF CATEGORIES T AND C EQUIPPED FOR FORESTRY APPLICATIONS U.K.

Vehicles of categories T and C equipped for forestry applications shall comply with the requirements laid down in ISO 8083:2006 (level I or level II).

C. REQUIREMENTS APPLYING TO FALLING OBJECTS PROTECTION STRUCTURES FOR ALL OTHER VEHICLES OF CATEGORIES T AND C FITTED WITH SUCH STRUCTURES ⁽¹⁾ U.K.

1. Definitions U.K.

1.1. [Not applicable] U.K.

1.2. Falling Object Protective Structure (FOPS) U.K.

Assembly providing reasonable overhead protection to an operator in driving position from falling objects.

1.3. Safety zone U.K.

1.3.1. Clearance zone U.K.

For tractors equipped with ROPS tested in accordance with Annexes VI, VIII, IX and X to this Regulation the safety zone shall comply with the specifications of the Clearance Zone as described in point 1.6 of each of these Annexes.

1.3.2. Deflection-Limiting Volume (DLV) U.K.

For tractors equipped with ROPS tested in accordance with Annex VII to this Regulation the safety zone shall comply with the Deflection-Limiting Volume (DLV), as described in ISO 3164:1995.

In the event the tractor has a reversible driver’s position (reversible seat and steering wheel), the safety zone shall be the combined envelope of the two DLVs defined by the two different positions of the steering wheel and the seat.

1.3.3. Top area of the safety zone U.K.

Respectively the top plane of the DLV or the surface defined by points I₁, A₁, B₁, C₁, C₂, B₂, A₂, I₂ of clearance zone for Annexes VI and VIII to this Regulation; the plane described in 1.6.2.3 and 1.6.2.4 of Annex IX to this Regulation; and the surface defined by points H₁, A₁, B₁, C₁, C₂, B₂, A₂, H₂ for Annex X to this Regulation.

1.4. Permissible measurement tolerances U.K.

Distance

± 5 % of maximum deflection measured, or ± 1 mm

Mass

± 0,5 %

2. Field of application U.K.

2.1. This section is applicable to agricultural tractors having at least two axles for pneumatic tyred wheels or having tracks instead of wheels. U.K.

2.2. This Annex establishes test procedures and performance requirements for those tractors exposed to potential hazards of falling objects encountered carrying out some agricultural tasks during their normal operation. U.K.

3. Rules and directions U.K.

3.1. General regulations U.K.

3.1.1. The protective structure may be manufactured either by the tractor manufacturer or by an independent firm. In either case the test is only valid for the model of tractor on which the test is carried out. The protective structure must be retested for each model of tractor to which it is to be fitted. However, testing stations may certify that the strength tests are also valid for tractor models derived from the original model by modifications to the engine, transmission and steering and front suspension (see below 3.4: Extension to other tractor models). On the other hand, more than one protective structure may be tested for any one model of tractor. U.K.

3.1.2. The protective structure submitted for test shall include at least all components which transfer loading from the impact location of the drop test object to the safety zone. The protective structure submitted for test shall be either (i) rigidly attached to the test bench at its normal mounting locations (see Figure 10.3 — Minimum Test Configuration), or (ii) attached to the tractor chassis in the normal manner, by means of any brackets, mountings or suspension components used in normal production, and to other parts of the tractor that may be affected by loads imposed by the protective structure (see Figures 10.4(a) & 10.4(b)). The vehicle chassis shall be mounted rigidly to the test bay floor. U.K.

[F1 3.1.3. A protective structure may be designed solely to protect the driver in the event of an object falling. Onto this structure it may be possible to fit weather protection for the driver, of a more or less temporary nature. The driver will usually remove this in warm weather. There are protective structures, however, in which the cladding is permanent and warm weather ventilation provided by windows or flaps. As the cladding may add to the strength of the structure and if removable may well be absent when an accident occurs, all parts that can be so taken away by the driver shall be removed for the purpose of the test. Doors and windows that can be opened shall be either removed or fixed in the open position for the test, so that they do not add to the strength of the protective structure. U.K.

[F2 3.1.3.1. In case of an openable roof hatch on the vertical projection of the safety zone, on request of the manufacturer, under his responsibility and in accordance with his instructions, the test can be either performed with the roof hatch: U.K.

• in the closed — locked position,

• in the open position,

• removed.

In any case, the requirements of point 3.3. shall be fulfilled and a description of the test condition shall be stated in the test report.

Throughout the remainder of these rules, reference will only be made to testing the protective structure. It must be understood that this includes cladding not of a temporary nature.

A description of any temporary cladding supplied is to be included in the specifications. All glass or similar brittle material shall be removed prior to the test. Tractor and protective structure components which might sustain needless damage during the test and which do not affect the strength of the protective structure or its dimensions may be removed prior to the test if the manufacturer wishes. No repairs or adjustment may be carried out during the test. Several identical samples can be provided by the manufacturer if several drop tests are required.] ]

3.1.4. Should the same structure be used for FOPS and ROPS evaluations the FOPS test shall precede the ROPS tests (according to Annexes VI, VII, VIII, IX, or X to this Regulation), the removal of impact dents or replacement of the FOPS cover is permitted. U.K.

3.2. Apparatus and procedures U.K.

3.2.1. Apparatus U.K.

3.2.1.1. Drop test object U.K.

The drop test object shall be a spherical object dropped from a height sufficient to develop the energy of 1 365 J, the drop height being defined as a function of its mass. The test object, whose impact surface shall have properties to protect against deformation during testing, shall be a solid steel or ductile iron sphere with a typical mass of 45 ± 2 kg and a diameter between 200 and 250 mm (Table 10.1).

Table 10.1

Energy level, safety zone and drop test object selection

a For tractors the ROPS of which is to be tested according to Annexes VI, VIII IX or X to this Regulation.
b For tractors the ROPS of which is to be tested according to Annex VII to this Regulation.
Energy level (J)	Safety zone	Drop object	Dimensions (mm)	Mass (kg)
1 365	Clearance zonea	Sphere	200 ≤ Diameter ≤ 250	45 ± 2
1 365	DLVb	Sphere	200 ≤ Diameter ≤ 250	45 ± 2

Test Facility apparatus is also required to provide:

3.2.1.2. Means of raising the drop test object to the required height; U.K.

3.2.1.3. Means of releasing the drop test object so that it drops without restrain; U.K.

3.2.1.4. Surface of such firmness that it is not penetrated by the machine or test bed under the loading of the drop test; U.K.

3.2.1.5. Means of determining whether the FOPS enters the safety zone during the drop test. This may be either of the following: U.K.

• a safety zone template, placed upright, made of a material which will indicate any penetration by the FOPS; grease or other suitable material may be put on the lower surface of the FOPS cover to indicate such penetration;

• a dynamic instrumentation system of sufficient frequency response to indicate the expected deflection of the FOPS with respect to the safety zone.

3.2.1.6. Safety zone requirements: U.K.

The safety zone template, if any, shall be fixed firmly to the same part of the tractor as the operator’s seat and shall remain there during the entire formal test period.

3.2.2. Procedure U.K.

The drop test procedure shall consist of the following operations, in the order listed.

3.2.2.1. Place the drop test object (3.2.1.1) on the top of the FOPS, at the location designated in 3.2.2.2. U.K.

3.2.2.2. When the safety zone is represented by the clearance zone the point of impact shall be at a location which is within the vertical projection of the clearance zone and is furthest removed from major structural members (Figure 10.1). U.K.

When the safety zone is represented by the DLV, the impact location shall be entirely within the vertical projection of the safety zone, in that volume’s upright position, on to the top of the FOPS. It is intended that the selection of impact location shall include at least one within the vertical projection of the top plane area of the safety zone.

Two cases have to be considered:

3.2.2.2.1.

Case 1: Where major, upper, horizontal members of the FOPS do not enter the vertical projection of the safety zone on to the top of the FOPS.

The impact location shall be as close as possible to the centroid of the upper FOPS structure (Figure 10.2 — Case 1).

3.2.2.2.2.

Case 2: Where major, upper, horizontal members of the FOPS enter the vertical projection of the safety zone on to the top of the FOPS.

When the covering material of all the surface areas above the safety zone is of uniform thickness, the impact location shall be in the surface of greatest area, this being the largest section of vertical projected area of the safety zone which does not include major, upper, horizontal members. The impact location shall be at that point, within the surface of greatest area, which has the least possible distance from the centroid of the top of the FOPS (Figure 10.2 — Case 2).

3.2.2.3. Irrespective of whether the safety zone is represented by the clearance zone or the DLV, where different materials or different thicknesses are used in different areas above the safety zone, each area shall be subjected to a drop test. If several drop tests are required, several identical samples of the FOPS (or parts of it) could be provided by the manufacturer (one for each drop test). If design features, such as openings for windows or equipment, or variations in cover material or thickness, indicate a more vulnerable location within the vertical projection of the safety zone, the drop location should be adjusted to that location. In addition, if openings in the FOPS cover are intended to be filled with devices or equipment to provide adequate protection, those devices or equipment shall be in place during the drop test. U.K.

3.2.2.4. Raise the drop test object vertically to a height above the position indicated in 3.2.2.1 and 3.2.2.2 to develop the energy of 1 365 J. U.K.

3.2.2.5. Release the drop object so that it falls without restraint onto the FOPS. U.K.

3.2.2.6. As it is unlikely that the free fall will result in the drop test object hitting at the location as specified in 3.2.2.1 and 3.2.2.2, the following limits are placed on deviations. U.K.

3.2.2.7. The impact point of the drop test object shall be entirely within a circle of 100 mm radius whose centre shall coincide with the vertical centre line of the drop test object as positioned according to 3.2.2.1 and 3.2.2.2). U.K.

3.2.2.8. There is no limitation on location or attitude of subsequent impacts due to rebound. U.K.

3.3. Performance requirements U.K.

The safety zone shall not be entered into by any part of the protective structure under the first or subsequent impacts of the drop test object. Should the drop test object penetrate the FOPS, it shall be considered to have failed that test.

Note 1: In the case of multilayer protective structure all the layers including the innermost layer shall be considered. U.K.

Note 2: The drop test object is considered to have penetrated the protective structure when at least half of the sphere volume has penetrated the innermost layer. U.K.

The FOPS shall completely cover and overlap the vertical projection of the safety zone.

If the tractor is to be equipped with a FOPS fitted on an approved ROPS, the testing station which performed the ROPS test will normally be the only one allowed to carry out the FOPS test and to require for the approval.

3.4. Extension to other tractor models U.K.

3.4.1. [Not applicable] U.K.

3.4.2. Technical extension U.K.

If the test was carried out with the minimum components required (as in Figure 10.3), then the testing station that has carried out the original test can issue a ‘technical extension report’ in the following cases: [see 3.4.2.1]

If the test was carried out including the attachments / mountings of the protective structure to the tractor/chassis (as in Figure 10.4), then when technical modifications occur on the tractor, to the protective structure or to the method of attachment of the protective structure to the vehicle chassis, the testing station that has carried out the original test can issue a ‘technical extension report’ in the following cases: [see 3.4.2.1]

3.4.2.1. Extension of the structural test results to other models of tractors U.K.

The impact test needs not to be carried out on each model of tractor, provided that the protective structure and tractor comply with the conditions referred to hereunder 3.4.2.1.1 to 3.4.2.1.3.

3.4.2.1.1.

The structure shall be identical to the one tested;

3.4.2.1.2.

If the test carried out included the method of attachment to the vehicle chassis, the tractor attachment components/ protective structure mountings shall be identical;

3.4.2.1.3.

The position and critical dimensions of the seat in the protective structure and the relative position of the protective structure on the tractor shall be such that the safety zone would have remained within the protection of the deflected structure throughout all tests (this shall be checked by using the same reference of clearance zone as in the original test report, respectively Seat Reference Point [SRP] or Seat Index Point [SIP]).

3.4.2.2. Extension of the structural test results to modified models of the protective structure U.K.

This procedure has to be followed when the provisions of paragraph 3.4.2.1 are not fulfilled, it shall not be used when the method of attachment of the protective structure to the tractor does not remain of the same principle (e.g. rubber supports replaced by a suspension device):

Modifications having no impact on the results of the initial test (e.g. weld attachment of the mounting plate of an accessory in a non-critical location on the structure), addition of seats with different SRP or SIP location in the protective structure (subject to checking that the new safety zone(s) remain(s) within the protection of the deflected structure throughout all tests).

More than one protective structure modifications may be included in a single extension report if they represent different options of the same protective structure. The options not tested shall be described in a specific section of the extension report.

3.4.3. In any case the test report shall contain a reference to the original test report. U.K.

3.5. [Not applicable] U.K.

3.6. Cold weather performance of protective structures U.K.

3.6.1. If the protective structure is claimed to have properties resistant to cold weather embrittlement, the manufacturer shall give details that shall be included in the report. U.K.

3.6.2. The following requirements and procedures are intended to provide strength and resistance to brittle fracture at reduced temperatures. It is suggested that the following minimum material requirements shall be met in judging the protective structure’s suitability at reduced operating temperatures in those countries requiring this additional operating protection: U.K.

3.6.2.1. Bolts and nuts used to attach the protective structure to the tractor and used to connect structural parts of the protective structure shall exhibit suitable controlled reduced temperature toughness properties. U.K.

3.6.2.2. All welding electrodes used in the fabrication of structural members and mounts shall be compatible with the protective structure material as given in 3.8.2.3 below. U.K.

3.6.2.3. Steel materials for structural members of the protective structure shall be of controlled toughness material exhibiting minimum Charpy V-Notch impact requirements as shown in Table 10.2. Steel grade and quality shall be specified in accordance with ISO 630:1995, Amd 1:2003. U.K.

Steel with an as-rolled thickness less than 2,5 mm and with a carbon content less than 0,2 per cent is considered to meet this requirement.

Structural members of the protective structure made from materials other than steel shall have an impact resistance equivalent to the one required for steel materials

3.6.2.4. When testing the Charpy V-Notch impact energy requirements, the specimen size shall be no less than the largest of the sizes stated in Table 1 that the material will permit U.K.

3.6.2.5. The Charpy V-Notch tests shall be made in accordance with the procedure in ASTM A 370-1979, except for specimen sizes that shall be in accordance with the dimensions given in Table 10.2. U.K.

3.6.2.6. Alternatives to this procedure are the use of killed or semi-killed steel for which an adequate specification shall be provided. Steel grade and quality shall be specified in accordance with ISO 630:1995, Amd 1:2003. U.K.

3.6.2.7. Specimens are to be longitudinal and taken from flat stock, tubular or structural sections before forming or welding for use in the protective structure. Specimens from tubular or structural sections are to be taken from the middle of the side of greatest dimension and shall not include welds. U.K.

[F2 3.6.2.8. Alternatively, these requirements can be verified by applying the test object impact if all structural members are at, or below, – 18 °C.] U.K.

Table 10.2

Impact Energy - Minimum Charpy V-Notch impact energy requirements for protective structure material at specimen temperatures of – 20 °C and – 30 °C

a Indicates preferred size. Specimen size shall be no less than largest preferred size that the material permits.
b The energy requirement at – 20 °C is 2,5 times the value specified for – 30 °C. Other factors affect impact energy strength, i.e. direction of rolling, yield strength, grain orientation and welding. These factors shall be considered when selecting and using steel.
Specimen size	Energy at	Energy at
	– 30 °C	– 20 °C
mm	J	Jb
10 × 10a	11	27,5
10 × 9	10	25
10 × 8	9,5	24
10 × 7,5a	9,5	24
10 × 7	9	22,5
10 × 6,7	8,5	21
10 × 6	8	20
10 × 5a	7,5	19
10 × 4	7	17,5
10 × 3,5	6	15
10 × 3	6	15
10 × 2,5a	5,5	14

Figure 10.1

Impact point referred to the clearance zone

Figure 10.2

Drop test impact points referred to the DLV

[F1 Figure 10.3

Minimum FOPS test configuration

Protective structure rigidly attached to the test bench at its normal mounting location]

Figure 10.4 FOPS test configurations when attached to the vehicle chassis U.K.

Figure 10.4a By mountings attachments

Figure 10.4b By suspension components

Explanatory notes to Annex XI U.K.

^{[F1 (1)} Unless otherwise stated, the text of the requirements and the numbering set out in Point C are identical with the text and numbering of the OECD standard Code for the official testing of falling object protective structures on agricultural and forestry tractors, OECD standard Code 10, Edition 2017 of February 2017.] U.K.

ANNEX XII

Requirements applying to passenger seats U.K.

1. Requirements U.K.

1.1. Passenger seats, if provided, shall comply with the requirements laid down in EN 15694:2009 and with the requirements of point 2.4 of Annex XIV. U.K.

1.2. A vehicle equipped with a straddle seat and handlebars, and with an unladen mass, in running order excluding the mass of the driver, of less than 400 kg, and designed to carry a passenger shall meet the technical requirements for ATV Type II vehicle passenger seats in EN 15997:2011, as an alternative to EN 15694:2009. U.K.

ANNEX XIII

Requirements applying to the driver’s exposure to noise level U.K.

1. General requirements U.K.

1.1. Unit of measurement U.K.

Noise level LA shall be measured in dB with A-weighting, expressed as dB(A).

1.2. Noise level limits U.K.

Agricultural and forestry wheeled and track-laying tractors shall have a level driver’s exposure to noise level within the following limits:

• 90 dB(A) in accordance with test method 1 as set out in section 2,

  or

• 86 dB(A) in accordance with test method 2 as set out in section 3.

[F3 1.3. Measuring apparatus U.K.

A precision quality sound level meter shall be used meeting the requirements of the International Electrotechnical Commission Standards IEC 61672-1:2013 Electroacoustics - Sound level meters - Part 1: Specifications. Measurement shall be carried out with a frequency weighting network in conformity with curve A and set to give slow response as is described in the IEC publication.]

1.3.1.

[F4 The equipment shall be calibrated frequently and, if possible, before each measuring session.

1.3.2.

An adequate technical description of measuring equipment shall be given in the test report.

1.3.3.

In the case of variable readings, the average of the maximum values shall be taken.]

2. Test method 1 U.K.

2.1. Conditions of measurement U.K.

Measurements shall be made under the following conditions:

2.1.1.

the tractor must be unladen, i.e. without optional accessories, but must include coolant, lubricant, full fuel tank, tools and driver. The latter may not wear any abnormally thick clothing, scarf or hat. There may be no object on the tractor likely to distort the noise level;

2.1.2.

the tyres must be inflated to the pressure recommended by the tractor manufacturer, the engine, transmission and drive axles must be at normal running temperature and radiator blinds when fitted must be kept open during measurements;

2.1.3.

if it is liable to affect the noise level, extra equipment powered by the engine or self-powered such as windscreen wipers, warm air fan or power take-off, may not be in operation when measurements are being made; parts which normally operate at the same time as the engine, such as the engine cooling fan, must be in operation when measurements are being made;

2.1.4.

the test area must be in an open and sufficiently silent location; it may take the form, for instance, of an open space of 50-metre radius, having a central part with a radius of at least 20 m which is practically level, or of a level section having a solid track with as flat a surface and as few gullies as possible. The track must be as clean and dry as possible (e.g. free of gravel, leaves, snow, etc.). Slopes and irregularities are acceptable only if the variations in noise level caused by them lie within the error tolerances of the measuring equipment

2.1.5.

the surface of the track must be such as not to cause excessive tyre noise;

2.1.6.

the weather must be fine and dry with little or no wind.

The driver-perceived ambient noise level due to the wind or other sources of noise must be at least 10 dB(A) below the noise level of the tractor;

2.1.7.

if a vehicle is used for measurements, it must be towed or driven at a sufficient distance from the tractor to avoid all interference. During measurements no object interfering with the measurements or reflective surfaces may be located within 20 m of each side of the test track or less than 20 m to the front or rear of the tractor. This condition can be considered fulfilled if the variations in noise level thus caused remain within the error tolerances; if not, the measurements must be discontinued for the duration of the interference;

2.1.8.

all measurements in a given series must be carried out on the same track.

2.1.9.

Vehicles of category C with steel tracks shall be tested on a layer of humid sand as specified by paragraph 5.3.2 of ISO 6395:2008.

2.2. Method of measurement U.K.

2.2.1. The microphone must be located 250 mm to the side of the centre plane of the seat, the side being that on which the higher noise level is encountered. U.K.

[F3 The microphone diaphragm must face forward and the centre of the microphone must be 790 mm above and 150 mm forward of the Seat Reference Point (S) described in Appendix 8 to Annex XIV. Excessive vibration of the microphone must be avoided.]

2.2.2. The maximum noise level in dB(A) shall be determined as follows: U.K.

2.2.2.1.

all openings (e.g. doors, windows) in tractors having a closed series-produced cab structure must be closed during an initial series of measurements;

2.2.2.1.1.

during a second series of measurements, they must be left open, provided that, when open, they do not create a road safety hazard, but fold-down or fold-up windscreens must remain closed;

2.2.2.2.

noise must be measured using slow sound-level meter response at the load corresponding to the maximum noise in the gear giving the forward speed nearest to 7,5 km/h, or 5 km/h for tractors on steel tracks.

The governor control lever must be fully open. Starting with no load, the load applied must be increased until the maximum noise level is found. After each increase of load, time must be allowed for the noise level to stabilise before making the measurement;

2.2.2.3.

noise must be measured using slow sound-level meter response at the load corresponding to the maximum noise in any gear other than that referred to in point 2.2.2.2 in which the noise level recorded is at least 1 dB(A) above that recorded in the gear referred to in point 2.2.2.2.

The governor control lever must be fully open. Starting with no load, the load applied must be increased until the maximum noise level is found. After each increase of load, time must be allowed for the noise level to stabilise before making the measurement;

2.2.2.4.

noise must be measured at the maximum design speed of the unladen tractor.

2.3. Content of the test report U.K.

2.3.1. For T category tractors and C category tractors with rubber tracks, the test report shall include noise-level measurements carried out under the following conditions: U.K.

2.3.1.1.

in the gear giving the speed nearest to 7,5 km/h;

2.3.1.2.

in any gear, if the conditions described in point 2.2.2.3 are fulfilled;

2.3.1.3.

at maximum design speed.

2.3.2. For C category tractors with steel tracks, the test report shall include noise-level measurements carried out under the following conditions: U.K.

2.3.2.1.

in the gear giving the speed nearest to 5 km/h;

2.3.2.2.

at standstill of the tractor.

2.4. Assessment criteria U.K.

2.4.1. For T category tractors and C category tractors with rubber tracks, The measurements described in points 2.2.2.1, 2.2.2.2, 2.2.2.3 and 2.2.2.4 may not exceed the values laid down in point 1.2. U.K.

2.4.2. For C category tractors with steel tracks, the measurement described in point 2.3.2.2 may not exceed the values laid down in point 1.2. The measurements described in points 2.3.2.1 and 2.3.2.2 shall be included in the test report. U.K.

3. Test method 2 U.K.

3.1. Conditions of measurement U.K.

Measurements shall be made under the following conditions:

3.1.1.

the tractor must be unladen, i.e. without optional accessories, but must include coolant, lubricant; full fuel tank, tools and driver. The latter may not wear any abnormally thick clothing, scarf or hat. There may be no object on the tractor likely to distort the noise level;

3.1.2.

the tyres must be inflated to the pressure recommended by the tractor manufacturer, the engine, transmission and drive axles must be at normal running temperature and, if the engine has cooling louvres, these must remain completely open;

3.1.3.

if it is liable to affect the noise level, extra equipment powered by the engine or self-powered such as windscreen wipers, warm air fan or power take-off, for example, may not be in operation when measurements are being made; parts which normally operate at the same time as the engine, such as the engine cooling fan, for example, must be in operation when measurements are being made[F1 .]

[F2 At the discretion of the manufacturer, an additional optional noise measurement may be made with the engine stopped and auxiliaries such as ventilating fans, defrosters and other electrical facilities working at maximum settings;]

3.1.4.

the test area must be in an open and sufficiently silent location: it may take the form, for instance, of an open space of 50-metre radius, having a central part with a radius of at least 20 m which is practically level, or of a level section having a solid track with as flat a surface and as few gullies as possible. The track must be as clean and dry as possible (e.g. free of gravel, leaves, snow, etc.). Slopes and irregularities are acceptable only if the variations in noise level caused by them lie within the error tolerances of the measuring equipment;

3.1.5.

the surface of the track must be such as not to cause excessive tyre noise;

3.1.6.

the weather must be fine and dry with little or no wind.

The driver-perceived ambient noise level due to the wind or other sources of noise must be at least 10 dB(A) below the noise level of the tractor;

3.1.7.

if a vehicle is used for measurements, it must be towed or driven at a sufficient distance from the tractor to avoid all interference. During measurements no object interfering with the measurements or reflective surfaces may be located within 20 m of each side of the test track or less than 20 m to the front or rear of the tractor. This condition can be considered fulfilled if the variations in noise level thus caused remain within the error tolerances; if not, the measurements must be discontinued for the duration of the interference;

3.1.8.

all measurements in a given series must be carried out on the same track.

3.1.9.

Vehicles of category C with steel tracks shall be tested on a layer of humid sand as specified by paragraph 5.3.2 of ISO 6395:2008.

3.2. Method of measurement U.K.

3.2.1. The microphone must be located 250 mm to the side of the central plane of the seat, the side being that on which the higher noise level is encountered. U.K.

[F3 The microphone diaphragm must face forward and the centre of the microphone must be 790 mm above and 150 mm forward of the Seat Reference Point (S) described in Appendix 8 to Annex XIV. Excessive vibration of the microphone must be avoided.]

3.2.2. Noise level shall be determined as follows U.K.

3.2.2.1.

the tractor must travel along the section at the same test speed at least three times for at least 10 seconds;

3.2.2.2.

all openings (e.g. doors, windows) in tractors having a closed series-produced cab structure must be closed during an initial series of measurements;

3.2.2.2.1.

during a second series of measurements they must be left open, provided that when open they do not create a road safety hazard, but fold-down or fold-up windscreens must remain closed;

3.2.2.2.2.

[F2 during the optional third series of measurements the engine shall be stopped and auxiliaries such as ventilating fans, defrosters and other electrical facilities shall be working at maximum settings;]

3.2.2.3.

noise must be measured at the maximum rpm using slow sound-level meter response i.e. in the gear giving the speed nearest to 7,5 km/h at the rated rpm. The tractor must be unladen when measurements are being made

3.3. Content of the test report U.K.

For C category tractors on steel tracks, the test report shall include noise-level measurements carried out under the following conditions:

3.3.1.

in the gear giving the speed nearest to 5 km/h;

3.3.2.

at standstill of the tractor.

3.4. Assessment criteria U.K.

3.4.1. For T category tractors and C category tractors with rubber tracks, the measurements described in points 3.2.2.2 and 3.2.2.3 may not exceed the values laid down in Point 1.2. U.K.

3.4.2. For C category tractors with steel tracks, the measurement described in point 3.3.2 may not exceed the values laid down in Point 1.2. The measurements described in points 3.3.1 and 3.3.2 shall be included in the test report. U.K.

ANNEX XIV

Requirements applying to the driving seat U.K.

LIST OF APPENDICES U.K.

[F3 Appendix Number	Appendix title
1	Determination of the characteristics curves of the suspension system and the load adjustment range (point 3.5.1)
2	Test on standard roadway Table of elevation ordinates in relation to a basic level defining the surface of each strip of the roadway (point 3.5.3.2.1)
3	Set-value signals for the test-stand inspection of the driver’s seat on Category A (Class I) tractors (point 3.5.3.1.1)
4a	Set-value signals for the test-stand inspection of the driver’s seat on Category A (Class II) tractors (point 3.5.3.1.1)
4b	Set-value signals for the test-stand testing of drivers’ seats for category A tractors in class III (point 3.5.3.1.1)
5	Test stand (point 3.5.3.1); example of construction (dimensions in mm)
6	Characteristic of the filter of the vibration measuring instrument (point 2.5.3.3.5)
7	Driver’s seat installation requirements for EU type-approval of a tractor
8	Method for determining the seat reference point (S)]

1. Definitions U.K.

For the purpose of this Annex the following definitions shall apply:

1.1.

‘Seat surface’ means the almost horizontal area of the seat which supports the driver when seated.

1.2.

‘Lateral seat supports’ means the devices or forms of the seat surface which prevent the driver from sliding sideways.

1.3.

‘Seat armrests’ means the devices on either side of the seat which support the driver’s arms when he is seated.

1.4.

‘Depth of the seat surface’ means the horizontal distance between the Seat Reference Point (S) and the front edge of the seat surface.

1.5.

‘Width of the seat surface’ means the horizontal distance between the outside edges of the seat surface measured in a plane perpendicular to the median plane of the seat.

1.6.

‘Load adjustment range’ means the range between the two loads corresponding to the mean positions in the suspension system curves plotted for the heaviest and lightest driver.

1.7.

‘Suspension travel’ means the vertical distance between the highest position and the position at a given moment of a point situated on the seat surface 200 mm in front of the Seat Reference Point (S) in the median longitudinal plane.

1.8.

‘Vibration’ means the vertical movement up and down of the driver’s seat.

1.9.

‘Vibration acceleration (a)’ means the second differential of the vibration displacement with respect to time.

1.10.

‘Rms value of the acceleration (a_eff)’ means the square root of the mean square of the accelerations.

1.11.

‘Weighted vibration acceleration (a_w)’ means the weighted vibration acceleration determined with the help of a weighting filter in accordance with point 3.5.3.3.5.2.

awS	=	rms value of the weighted seat vibration acceleration measured during a bench test or a standard roadway test;
awB	=	rms value of the weighted vibration acceleration measured at the seat attachment during a bench test;
awB*	=	reference rms value of the weighted vibration acceleration measured at the seat attachment;
awS*	=	corrected rms value of the weighted seat vibration acceleration measured during a bench test;
awF*	=	rms value of the weighted vibration acceleration measured at the seat attachment during a standard roadway test.

1.12.

‘Vibration ratio’ means the ratio of the weighted vibration acceleration measured on the driver’s seat to that measured at the seat attachment in accordance with point 3.5.3.3.2.

1.13.

‘Vibration class’ means the class or group of tractors which show the same vibration characteristics.

1.14.

‘Category A tractor’ means a tractor which can be assigned to a given vibration class by reason of similar design features.

The characteristics of these tractors are as follows:

number of axles: two having wheels or rubber tracks on at least one axle

suspension: unsuspended rear axle

Category A tractors shall be divided up into three classes:

[F3 Class I	tractors having an unladen mass of up to 3 600 kg;]
Class II	tractors having an unladen mass of 3 600 — 6 500 kg;
Class III	tractors having an unladen mass of more than 6 500 kg.

1.15.

‘Category B tractor’ means a tractor which cannot be assigned to a vibration class in Category A.

1.16.

‘Seats of the same type’ means seats which do not differ in any essential respects; the only aspects in which the seats may differ being as follows:

• dimensions;

• position and inclination of the backrest;

• inclination of the seat surface;

• longitudinal and vertical adjustment of the seat.

2. General requirements U.K.

2.1. The driver’s seat must be designed to ensure a comfortable position for the driver when controlling and manoeuvring the tractor, and to afford him the utmost protection as regards health and safety. U.K.

2.2. The seat must be adjustable in the longitudinal direction and in the height without the use of a tool. U.K.

2.3. The seat must be designed to reduce shocks and vibration. It must therefore be well sprung, have good vibration absorption and provide adequate support at the rear and sides. U.K.

The lateral support is considered adequate if the seat is designed to prevent the driver’s body from slipping sideways.

2.3.1. The seat must be suitable for persons of different mass. Any adjustment necessary in order to comply with this requirement must be carried out without the use of tools. U.K.

2.4. The seat surface, the backrest, the lateral supports and, where fitted, the removable, folding or fixed armrests, must be padded and the coating material must be washable. U.K.

2.5. The Seat Reference Point (S) must be calculated in the manner specified in Appendix 8. U.K.

2.6. Save as otherwise provided, the measurements and tolerances must comply with the following requirements: U.K.

2.6.1.

the measurements given must be expressed in whole units, if necessary rounded off to the nearest whole number of units;

2.6.2.

the instruments used for making measurements must enable the measured value to be rounded off to the nearest whole unit and must be accurate within the following tolerance limits:

• [F3 for length measurements: ± 0,5 %,]

• for angle measurements: ± 1°,

• for determination of the mass of the tractor: ± 20 kg,

• for measurement of tyre pressure: ± 0,1 bar;

2.6.3.

for all data relating to dimensions, a tolerance of ± 5 % is allowed.

2.7. The seat must undergo the following tests, carried out on the same seat and in the order indicated below: U.K.

2.7.1.

determination of the suspension characteristics and the range of adjustment to the driver’s mass;

2.7.2.

determination of lateral stability;

2.7.3.

Determination of vertical vibration characteristics.

2.7.4.

Determination of the damping characteristics in the resonance range.

2.8. If the seat is manufactured so that it can revolve about a vertical axis, then tests are carried out with the seat facing the forward position, locked in a position parallel with the median longitudinal plane of the tractor. U.K.

2.9. The seat undergoing the above tests must possess the same characteristics with respect to construction and fittings as the seats in series production. U.K.

2.10. Before the tests are carried out, the seat must have been run in by the manufacturer. U.K.

2.11. A test report, which confirms that the seat has completed all the specified tests without damage and which includes details of the seat vibration characteristics, must be prepared by the test laboratory. U.K.

2.12. Seats tested for Class I tractors are suitable only for tractors of that class, whereas seats tested for Class II tractors are suitable for Class I or Class II tractors and seats tested for class III tractors are suitable for class II and III tractors. U.K.

2.13. A vehicle equipped with a straddle seat and handlebars is deemed to comply with the requirements of points 2.2 to 2.7 where the straddle seat allows the operator to adjust his position on the seat so that he can effectively operate the control devices and where the vehicle passes the vibration test on the standard roadway as defined in point 3.5.3. U.K.

2.14. As an alternative to the provisions of point 3.5, for vehicles of category C with steel tracks, the vibrations transmitted to the driver may be measured according to the specifications of paragraph 5.3.2 of ISO 6395:2008 with the unladen vehicle travelling over a layer of humid sand at a constant speed of 5 km/h (± 0,5 km/h) and with the engine at rated speed. The measurement shall be done following specifications of point 3.5.3.3. U.K.

3. Special requirements U.K.

3.1. Seat surface dimensions U.K.

3.1.1. The depth of the seat surface, measured parallel to and at a distance of 150 mm from the median longitudinal plane of the seat, must be 400 ± 50 mm (see figure 1). U.K.

3.1.2. The width of the seat surface, measured perpendicular to the median plane of the seat, 150 mm in front of the Seat Reference Point (S) and at not more than 80 mm above that point, must be at least 450 mm (see figure 1). U.K.

3.1.3. The depth and width of the surface of seats intended for tractors in which the minimum rear-wheel track width does not exceed 1 150 mm may be reduced to not less than 300 and 400 mm respectively if the design of the tractor prevents compliance with the requirements of points 3.1.1 and 3.1.2. U.K.

3.2. Position and inclination of the backrest U.K.

3.2.1. The upper edge of the backrest of the seat must be at least 260 mm above the Seat Reference Point (S) (see figure 1). U.K.

3.2.2. The backrest must have an inclination of 10 ± 5° (see figure 1). U.K.

3.3. Inclination of the seat surface U.K.

3.3.1. The inclination towards the rear (see angle α in figure 1) of the surface of the loaded cushion must be 3 to 12° in relation to the horizontal, measured with the loading device in accordance with Appendix 8. U.K.

3.4. Seat adjustment (see figure 1) U.K.

3.4.1. The seat must be adjustable in the longitudinal direction over a minimum distance of: U.K.

• 150 mm for tractors with a minimum rear-wheel track width of more than 1 150 mm,

• 60 mm for tractors with a minimum rear-wheel track width of 1 150 mm or less.

3.4.2. The seat must be adjustable in the vertical direction over a minimum distance of: U.K.

• 60 mm for tractors with a minimum rear-wheel track width of more than 1 150 mm,

• 30 mm for tractors with a minimum rear-wheel track width of 1 150 mm or less.

3.4.3. As an alternative to the requirements set out in points 3.4.1 and 3.4.2, vehicles not equipped with an adjustable seat shall be equipped with a steering column and pedal(s) adjustable in the longitudinal and vertical directions over the minimum distances set out in points 3.4.1. to 3.4.2. U.K.

Figure 1

Special requirements of the driver’s seat

3.5. Seat tests U.K.

3.5.1. Determination of the suspension characteristics and the range of adjustment to the driver’s mass. U.K.

3.5.1.1. The suspension characteristics are determined by a static test. The range of adjustment to the driver’s mass is calculated from the suspension characteristics. These calculations are not necessary in the case of seats that cannot be manually adjusted to the driver’s mass. U.K.

3.5.1.2. The seat is mounted on a test stand or on a tractor and a load applied to it, either directly or by means of a special device; this load must not differ by more than 5 N from the nominal load. The measuring error for the suspension travel shall not exceed ± 1 mm. The load must be applied in accordance with the procedure laid down in the Appendix 8. U.K.

3.5.1.3. A complete characteristic curve representing the deflection of the suspension system must be plotted from zero load to maximum load, and back to zero. The load graduations at which the suspension travel is measured must not exceed 100 N; at least eight measurement points must be plotted at approximately equal intervals in the suspension travel. The point taken as the maximum load should be either that at which no further suspension travel can be measured, or a load of 1 500 N. After each application or removal of the load, the suspension travel must be measured 200 mm in front of the Seat Reference Point (S) in the median longitudinal plane of the seat surface. After application or removal of the load, the seat must be allowed to return to its at-rest position. U.K.

3.5.1.4. In the case of seats with a mass adjustment scale, the characteristic curves representing the deflection of the suspension system are plotted at mass adjustments for drivers having a mass of 50 and 120 kg. In the case of seats without a mass adjustment scale and with adjustment stops, measurements are taken at the lowest and the highest mass adjustment. In the case of seats without a mass adjustment scale or adjustment stops, the adjustment must be so selected that: U.K.

3.5.1.4.1.

for the lower mass adjustment limit, the seat just returns to the top of the suspension travel when the load is removed, and

3.5.1.4.2.

for the upper mass adjustment limit, the load of 1 500 N depresses the seat to the lowest limit of the suspension travel.

3.5.1.5. The mean position of the suspension system is the position which the seat assumes when it is depressed by half the full travel of the suspension system. U.K.

3.5.1.6. Since the characteristic curves of the suspension system are generally hysteresis loops, the load must be determined by drawing a centre line through the loop (see definition of point 1.6. and sections A and B of Appendix 1). U.K.

3.5.1.7. To determine the limits of the adjustment range as a function of the driver’s mass, the vertical forces determined in accordance with point 3.5.1.6 for points A and B (see Appendix 1) must be multiplied by the scale factor 0,13 kg/N. U.K.

3.5.2. Determination of lateral stability U.K.

3.5.2.1. The seat must be set for the upper limit of the weight adjustment and connected to the test stand or to the tractor in such a way that its base plate rests on a rigid plate (test stand) not smaller than the base plate itself. U.K.

3.5.2.2. A test load of 1 000 N is applied to the surface or cushion of the seat. The point of application must lie 200 mm in front of the Seat Reference Point (S) and alternately on the two sides 150 mm from the plane of symmetry through the seat. U.K.

3.5.2.3. During application of the load, the variation in the lateral angle of inclination of the seat surface is measured in the end settings for horizontal and vertical seat adjustment. The permanent deformation close to the point of application of the load is not to be taken into consideration. U.K.

3.5.3. Determination of the vertical vibration characteristics U.K.

The seat vibration is determined by tests on a test stand and/or a standard roadway depending on whether the seat is intended for a class (or classes) of Category A tractor or for a Category B tractor.

3.5.3.1. Testing on the test stand U.K.

3.5.3.1.1. The test stand must simulate the vertical vibrations at the point of attachment of the driver’s seat. The vibrations are generated by means of an electro-hydraulic device. The set values to be used are either those specified in Appendices 3, 4a and 4b for the class of tractor in question or the double-integrated acceleration signals recorded at the seat attachment of a Category B tractor moving at a speed of 12 ± 0,5 km/h on a standard roadway as defined in point 3.5.3.2.1. To generate the vibrations, an uninterrupted double run of the set values must be used. U.K.

The transition from the end of the sequence of acceleration signals recorded on the standard roadway in the first run to the start of the second run must be smooth and jolt-free. The measurements must not be made during the first run of the set values or of the acceleration signals. More values than the 700 laid down in Appendices 3 and 4a and 4b may be used if these values were calculated, for example, with a cubic Spline function from the original 700 values.

3.5.3.1.2. Besides an attachment for the test seat, the platform must contain a steering wheel and footrest. Its configuration must be as shown in Appendix 5. U.K.

3.5.3.1.3. The test stand must have a high degree of flexural and torsional rigidity and its bearings and guides must have no more than the technically necessary clearance. If the platform is carried on an oscillating arm, the dimension R must be not less than 2 000 mm (see Appendix 5). The magnitude of the vibration ratio at frequencies between 0,5 and 5,0 Hz shall be within the range 1,00 ± 0,05, measured at intervals not exceeding 0,5 Hz. The phase shift shall not vary by more than 20° throughout the same frequency range. U.K.

3.5.3.2. Testing on a standard roadway U.K.

3.5.3.2.1. The roadway consists of two parallel strips spaced according to the wheel track of the tractor. Both strips must be made of a rigid material, such as wood or concrete, and be formed either of blocks set in a base structure or of a continuous smooth surface. The longitudinal profile of each track strip is defined by the ordinates of elevation in relation to a base level; these ordinates are shown in the tables in Appendix 2. With regard to the roadway, the elevation is defined at intervals of 16 cm along each strip. U.K.

The roadway must be firmly set in the ground and the distance between the strips must deviate only slightly over its entire length; the tractor’s wheels must be fully supported at all times. Where the strips are formed of blocks, these must be 6 to 8 cm thick, with a distance of 16 cm between the centres of the blocks. The length of the standard roadway shall be 100 m.

The measurements must begin as soon as the axis of the rear axle of the tractor is perpendicular to point D = 0 on the roadway, and end as soon as the axis of the front axle of the tractor is perpendicular to point D = 100 of the test roadway (see the table in Appendix 2).

3.5.3.2.2. Measurements shall be taken at a speed of 12 ± 0,5 km/h. U.K.

The prescribed speed must be maintained without the use of brakes. The vibrations must be measured on the seat and at the point where the seat is attached to the tractor, with a light and a heavy driver.

The speed of 12 km/h must be reached after a run-up track has been traversed. The surface of this run-up track must be flat and must join the standard roadway without any change in level.

3.5.3.2.3. The seat must be set for the driver’s mass in accordance with the manufacturer’s instructions U.K.

3.5.3.2.4. The tractor must be fitted with a protective frame and/or cab unless of a type for which this equipment is not required. It must not carry any ancillary equipment. Moreover, there must be no ballast on the wheels or framework, and no fluid in the tyres. U.K.

3.5.3.2.5. The tyres used during the test must have the standard dimensions and ply-rating, as specified in the manufacturer’s instructions. The depth of the tread must not be less than 65 % of the depth of a new tread. U.K.

3.5.3.2.6. The side-walls of the tyres must not be damaged. The pressure of the tyre must correspond to the arithmetical mean of the reference pressures recommended by the tyre manufacturer. The wheel track must correspond to that used under normal working conditions for the tractor model on which the seat is fitted. U.K.

[F3 3.5.3.2.7. The measurements at the point of seat attachment and on the seat itself shall be made during the same run. U.K.

For measuring and recording the vibrations, an accelerometer, a measuring amplifier and a magnetic tape recorder, electronic system for data acquisition or direct-reading vibration meter shall be used. The specifications laid down in points 3.5.3.3.2 to 3.5.3.3.6 shall apply to those instruments.]

3.5.3.3. Specifications for tests on roadway and test stand U.K.

3.5.3.3.1. Driver’s mass U.K.

The tests must be carried out with two drivers: one with a total mass of 59 ± 1 kg, of which not more than 5 kg may be carried in a weighting belt around the body; the other with a mass of 98 ± 5 kg with a maximum mass of 8 kg in the weighting belt.

3.5.3.3.2. Position of the accelerometer U.K.

To measure the vibrations transmitted to the driver, an accelerometer is fixed on a flat plate with a diameter of 250 ± 50 mm, the central part of which must be rigid up to a diameter of 75 mm and must include a rigid device to protect the accelerometer. This plate must be placed in the middle of the seat surface between the seat and the driver and have a non-slip surface.

To measure the vibrations at the seat attachment, an accelerometer must be fixed near to this attachment at a point not more than 100 mm from the median longitudinal plane of the tractor and not outside the vertical projection of the seat surface on the tractor.

3.5.3.3.3. Measurement of vibration acceleration U.K.

The accelerometer and the associated amplifying and transmitting equipment must respond to vibrations with an r.m.s. value of 0,05 m/s², and be capable of measuring vibrations with an r.m.s. value of 5 m/s² and a crest factor (ratio of peak to r.m.s. value) of 3 without distortion and with a maximum error of ± 2,5 % over the range 1 to 80 Hz.

[F3 3.5.3.3.4. Magnetic tape recorder or electronic data acquisition system U.K.

If a tape recorder or electronic system for data acquisition is used, it must have a maximum reproduction error of ± 3,5 % in a frequency range of 1 to 80 Hz, including change of tape speed during replay for analysis.]

3.5.3.3.5. Vibration meter U.K.

3.5.3.3.5.1. Vibrations of more than 10 Hz may be disregarded. It is therefore permissible to connect upstream of the measuring instrument a low-pass filter with a cut-out frequency of about 10 Hz and an attenuation of 12 dB per octave. U.K.

3.5.3.3.5.2. This instrument must incorporate an electronic weighting filter between the sensor and the integrator device. The filter must correspond to the curve shown in Appendix 6 and the margin of error must be ± 0,5 dB in the 2 to 4 Hz frequency band and ± 2 dB for the other frequencies. U.K.

3.5.3.3.5.3. The electronic measuring device must be capable of indicating either: U.K.

• the integral (I) of the square of the weighted vibration acceleration (a_w) for a test time

• or the square root of that integral

• or directly the r.m.s. value of the weighted vibration acceleration

The inaccuracy of the entire system for measuring the rms value of the acceleration must not exceed ± 5 % of the measured value.

3.5.3.3.6. Calibration U.K.

All instruments must be regularly calibrated.

3.5.3.3.7. Evaluation of vibration tests U.K.

3.5.3.3.7.1. During each test, the weighted vibration acceleration for the whole test time must be determined with the vibration meter specified in point 3.5.3.3.5. U.K.

3.5.3.3.7.2. The test report must give the arithmetic mean value of the rms values of the weighted seat vibration acceleration (a_wS) for both the light driver and the heavy driver. The test report must also give the ratio of the arithmetic mean of the rms values of the weighted vibration acceleration measured on the seat (a_wS) to the arithmetic mean of the rms values of the weighted vibration acceleration measured at the seat attachment (a_wB). This ratio shall be given to two decimal places. U.K.

3.5.3.3.7.3. The ambient temperature during the vibration test must be measured and shown in the report. U.K.

3.5.4. Vibration test for tractor seats in accordance with their intended use U.K.

3.5.4.1. A seat intended for use on a class (or classes) of Category A tractors must be tested on a vibration stand using the appropriate set value signals. U.K.

3.5.4.2. A seat intended for use on a type of Category B tractor must be tested on a standard roadway with a tractor of that type. However, a simulation test may also be carried out using a set value signal corresponding to the acceleration curve which was determined during the standard roadway test with the type of tractor for which the seat is intended. U.K.

3.5.4.3. A seat intended for use only on a particular type of Category A tractor may also be tested in accordance with the requirements of 3.5.4.2. In this case, component type-approval will be granted only for the type of tractor for which the test seat is intended. U.K.

3.5.5. Procedure used for determining the weighted vibration acceleration of seats intended for Category A tractors U.K.

3.5.5.1. The test on the vibration test stand shall be carried out in accordance with point 3.5.3.1. the value a_wB actually occurring at the seat attachment during measurement must be determined. In the case of deviations from the reference value: U.K.

a*wB =	2,05 m/s2 for class I, category A tractors.
a*wB =	1,5 m/s2 for class II, category A tractors.
a*wB =	1,3 m/s2 for class III, category A tractors.

The acceleration a_wS measured at the driver’s seat must be corrected in accordance with the following equation:

3.5.5.2. For each of the two drivers provided for in point 3.5.3.3.1, the weighted acceleration of the vibratory movement shall be measured at the seat for 28 seconds in the case of classes I and III, and for 31 seconds in the case of class II. The measurement must begin at the set value signal corresponding to t = 0 seconds and end at the set value signal corresponding to t = 28 or 31 seconds (see table in Appendices 3, 4a and 4b). At least two test runs must be carried out. The measured values must not deviate from the arithmetical mean by more than ± 5 %. Each complete set point sequence must be reproduced in 28 or 31 ± 0,5 s. U.K.

3.5.6. Procedure used for determining the weighted vibration acceleration of seats intended for Category B tractors U.K.

3.5.6.1. In accordance with the requirements of points 3.5.4.2, the seat vibration tests are not applicable to a class of tractors, but only to each tractor type for which the seat is intended. U.K.

3.5.6.2. The standard roadway test must be carried out in accordance with the requirements of points 3.5.3.2 and 3.5.3.3. The vibration acceleration measured on the driver’s seat (a_wS) need not be corrected. At least two test runs must be carried out on the standard roadway. The measured values must not deviate from the arithmetic mean by more than ± 10 %. U.K.

3.5.6.3. If a bench test is conducted, it must be carried out in association with a standard roadway test pursuant to the requirements of points 3.5.3.1 and 3.5.3.3. U.K.

3.5.6.4. The vibration test stand shall be adjusted in such a way that the rms value of the weighted vibration acceleration recorded at the seat attachment (a_wB) deviates by less than ± 5 % from the rms value of the weighted vibration acceleration at the seat attachment recorded on the standard roadway (a*_wF). U.K.

In the event of deviations from the value (a_wF*) measured at the seat attachment during the test run, the weighted vibration acceleration recorded at the driver’s seat during the test on the test stand must be corrected as follows:

Each of the tests on the test stand must be carried out twice. The measured values must not deviate from the arithmetic mean by more than ± 5 %.

3.5.7. Test for determining the damping characteristics in the resonance range U.K.

3.5.7.1. This test is carried out on the test stand as specified in point 3.5.3.1. However, account must be taken of the following: U.K.

3.5.7.2. Instead of the set values specified in the second paragraph of point 3.5.3.1.1 (see Appendices 3, 4a and 4b), sinusoidal oscillations of ± 15 mm amplitude with a frequency of 0,5 to 2 Hz are generated. The frequency range is to be run through with a constant rate of frequency change in not less than 60 seconds or at intervals no greater than 0,05 Hz with increasing frequency, and in an identical manner with decreasing frequency. During this measurement, it is permissible to filter the signals emitted by the accelerometers through a bandpass filter with cut-off frequencies of 0,5 and 2,0 Hz. U.K.

3.5.7.3. The seat is to be loaded with a ballast of 40 kg in the first test and with a mass of 80 kg in the second test; the ballast is to be applied on the device illustrated in Figure 1 of Appendix 8, with the same line of action of the force as when determining the Seat Reference Point (S). U.K.

3.5.7.4. The ratio of the rms values of the vibration acceleration on the seat surface a_wS to those at the seat attachment a_wB: U.K.

is to be determined in the frequency range from 0,5 to 2,0 Hz at intervals no greater than 0,05 Hz.

3.5.7.5. The ratio measured must be given in the test report to two decimal places. U.K.

[F4 4. Additional conditions for EU component type-approval of a seat U.K.

To be granted EU component type-approval, a seat shall, in addition to fulfilling the requirements set out in sections 2 and 3, satisfy the following conditions:

(a)

the range of adjustment as a function of the driver's mass extends from at least 50 to 120 kg;

(b)

the change in the angle of inclination measured during the lateral stability test does not exceed 5 ^o ;

(c)

neither of the two values set in point 3.5.3.3.7.2 exceed 1,25 m/s ² ;

(d)

the ratio referred to in points 3.5.7.4 and 3.5.7.5 does not exceed the value of 2.]

Appendix 1

Determination of the characteristics curves of the suspension system and the load adjustment range (point 3.5.1) U.K.

Appendix 2

Test on standard roadway U.K.

Table of elevation ordinates in relation to a basic level defining the surface of each strip of the roadway (point 3.5.3.2.1) U.K.

D

=

distance from the beginning of the standard roadway (in metres)

L

=

ordinate of the left-hand strip (mm)

R

=

ordinate of the right-hand strip (mm)

D	L	R
0	115	140
0·16	110	125
0·32	110	140
0·48	115	135
0·64	120	135
0·80	120	125
0·96	125	135
1·12	120	125
1·28	120	115
1·44	115	110
1·60	110	100
1·76	110	110
1·92	110	110
2·08	115	115
2·24	110	110
2·40	100	110
2·56	100	100
2·72	95	110
2·88	95	95
3·04	90	95
3·20	90	100
3·36	85	100
3·52	90	100
3·68	90	115
3·84	95	110
4·00	90	110
4·16	90	95
4·32	95	100
4·48	100	100
4·64	100	90
4·90	90	90
4·96	90	90
5·12	95	90
5·28	95	70
5·44	95	65
5·60	90	50
5·76	95	50
5·92	85	50
6·08	85	55
6·24	75	55
6·40	75	55
6·56	70	65
6·72	75	75
6·88	65	75
7·04	65	85
7·20	65	90
7·36	75	95
7·52	75	100
7·68	95	95
7·84	115	110
8·00	115	100
8·16	125	110
8·32	110	100
8·48	110	100
8·64	110	95
8·80	110	95
8·96	110	95
9·12	110	100
9·28	125	90
9·44	120	100
9·60	135	95
9·76	120	95
9·92	120	95
10·08	120	95
10·24	115	85
10·40	115	90
10·56	115	85
10·72	115	90
10·88	120	90
11·04	110	75
11·20	110	75
11·36	100	85
11·52	110	85
11·68	95	90
11·84	95	90
12·00	95	85
12·16	100	95
12·32	100	90
12·48	95	85
12·64	95	85
12·80	95	90
12·96	85	90
13·12	85	85
13·28	75	90
13·44	75	95
13·60	75	90
13·76	70	75
13·92	70	90
14·08	70	100
14·24	70	110
14·40	65	95
14·56	65	100
14·72	65	90
14·88	65	90
15·04	65	85
15·20	55	85
15·36	65	85
15·52	65	85
15·68	55	75
15·84	55	85
16·00	65	75
16·16	55	85
16·32	50	75
16·48	55	75
16·64	65	75
16·80	65	75
16·96	65	85
17·12	65	70
17·28	65	65
17·44	65	75
17·60	65	75
17·76	50	75
17·92	55	85
18·08	55	85
18·24	65	85
18·40	70	75
18·56	75	75
18·72	95	75
18·88	90	75
19·04	90	70
19·20	95	70
19·36	85	70
19·52	85	75
19·68	75	85
19·84	85	85
20·00	75	90
20·16	85	85
20·32	75	70
20·48	70	75
20·64	65	75
20·80	70	75
20·96	65	75
21·12	70	75
21·28	70	85
21·44	70	85
21·60	70	90
21·76	75	95
21·92	75	95
22·08	75	90
22·24	85	90
22·40	85	95
22·58	90	85
22·72	90	85
22·88	95	85
23·04	95	85
23·20	100	85
23·36	100	75
23·52	110	85
23·68	110	85
23·84	110	85
24·00	100	75
24·16	100	75
24·32	95	70
24·48	100	70
24·64	100	70
24·80	115	75
24·96	110	75
25·12	110	85
25·28	100	75
25·44	110	95
25·60	100	95
25·76	115	100
25·92	115	100
26·08	110	95
26·24	115	95
26·40	110	95
26·56	100	95
26·72	100	95
26·88	100	100
27·04	100	95
27·20	100	95
27·36	110	90
27·52	115	90
27·68	115	85
27·84	110	90
28·00	110	85
28·16	110	85
28·32	100	85
28·48	100	90
28·64	90	85
28·80	90	75
28·96	75	90
29·12	75	75
29·28	75	75
29·44	70	75
29·60	75	75
29·76	75	85
29·92	85	75
30·08	75	75
30·24	85	75
30·40	75	75
30·56	70	75
30·72	75	75
30·88	85	75
31·04	90	75
31·20	90	85
31·36	100	75
31·52	100	75
31·68	120	85
31·84	115	75
32·00	120	85
32·16	120	85
32·32	135	90
32·48	145	95
32·64	160	95
32·80	165	90
32·96	155	90
33·12	145	90
33·28	140	95
33·44	140	85
33·60	140	85
33·76	125	75
33·92	125	75
34·08	115	85
34·24	120	75
34·40	125	75
34·56	115	85
34·72	115	75
34·88	115	90
35·04	115	100
35·20	120	100
35·36	120	100
35·52	135	95
35·68	135	95
35·84	135	95
36·00	135	90
36·16	120	75
36·32	115	75
36·48	110	70
36·64	100	65
36·80	110	55
36·96	115	55
37·12	100	50
37·28	115	50
37·44	110	50
37·60	100	65
37·76	90	55
37·92	95	55
38·08	90	35
38·24	90	35
38·40	110	35
38·56	100	35
38·72	115	35
38·88	100	35
39·04	100	35
39·20	110	30
39·36	110	45
39·52	110	50
39·68	100	55
39·84	110	50
40·00	90	55
40·16	85	55
40·32	90	65
40·48	90	65
40·64	90	70
40·80	95	75
40·96	95	75
41·12	95	75
41·28	90	90
41·44	90	95
41·60	85	95
41·76	85	100
41·92	90	100
42·08	90	95
42·24	85	100
42·40	85	110
42·56	95	110
42·72	95	115
42·88	95	115
43·04	100	100
43·20	100	95
43·36	100	95
43·52	100	90
43·68	110	95
43·84	100	100
44·00	110	90
44·16	100	85
44·32	110	90
44·48	110	85
44·64	100	85
44·80	100	90
44·96	95	90
45·12	90	95
45·28	90	100
45·44	95	100
45·60	90	90
45·76	85	90
45·92	75	90
46·08	85	90
46·24	75	90
46·40	75	90
46·54	75	90
46·72	85	90
46·88	85	85
47·04	90	85
47·20	75	85
47·36	65	75
47·52	70	70
47·68	70	75
47·84	70	75
48·00	75	85
48·16	90	95
48·32	95	95
48·48	100	120
48·64	110	100
48·30	115	100
48·96	115	115
49·12	120	115
49·28	120	110
49·44	115	95
49·60	115	90
49·76	115	90
49·92	110	95
50·08	110	100
50·24	100	110
50·40	100	120
50·56	95	120
50·72	95	115
50·88	95	120
51·04	95	120
51·20	90	135
51·36	95	125
51·52	95	120
51·68	100	120
51·84	100	120
52·00	100	120
52·16	100	125
52·32	110	125
52·48	110	125
52·64	100	125
52·80	100	120
52·96	100	120
53·12	110	115
53·28	100	110
53·44	110	110
53·60	95	110
53·76	95	110
53·92	100	110
54·08	95	100
54·24	100	100
54·40	100	100
54·56	100	100
54·72	95	100
54·88	100	100
55·04	100	115
55·20	110	115
55·36	100	110
55·52	110	100
55·68	100	110
55·84	100	110
56·00	100	110
56·16	95	115
56·32	90	110
56·48	95	110
56·64	95	110
56·80	90	100
56·96	100	100
57·12	100	95
57·28	95	100
57·44	100	100
57·60	95	115
57·76	85	110
57·92	90	115
58·08	90	110
58·24	90	100
58·40	85	95
58·56	90	95
58·72	85	90
58·88	90	90
59·04	90	95
59·20	90	115
59·36	90	115
59·52	90	115
59·68	85	110
59·84	75	110
60·00	90	115
60·16	90	120
60·32	90	120
60·48	90	120
60·64	95	120
60·80	95	120
60·96	90	120
61·12	90	115
61·28	95	110
61·44	95	110
61·60	100	100
61·76	110	100
61·92	100	100
62·08	100	100
62·24	95	100
62·40	95	100
62·56	95	100
62·72	90	100
62·88	90	100
63·04	90	100
63·20	90	90
63·36	90	90
63·52	85	90
63·68	85	90
63·84	75	85
64·00	75	85
64·16	75	75
64·32	75	75
64·48	70	75
64·64	70	70
64·80	70	55
64·96	70	45
65·12	65	55
65·28	65	55
65·44	65	65
65·60	55	70
65·76	55	75
65·92	55	75
66·08	55	75
66·24	55	85
66·46	55	85
66·56	65	90
66·72	70	90
66·88	70	110
67·04	65	100
67·20	55	100
67·36	65	100
67·52	50	100
67·68	50	85
67·84	50	90
68·00	50	100
68·16	55	100
68·32	55	95
68·48	65	90
68·64	50	85
68·80	50	70
68·96	50	70
69·12	50	65
69·28	50	55
69·44	45	50
69·60	35	50
69·76	35	55
69·92	35	65
70·08	35	65
70·24	35	65
70·40	35	55
70·58	45	55
70·72	50	55
70·88	50	50
71·04	50	45
71·20	50	45
71·36	50	50
71·52	45	45
71·68	45	55
71·84	55	65
72·00	55	65
72·16	70	65
72·32	70	75
72·48	75	85
72·64	75	85
72·80	75	90
72·96	85	95
73·12	90	100
73·28	90	110
73·44	90	115
73·60	90	120
73·76	90	115
73·92	90	115
74·08	110	115
74·24	100	100
74·40	100	110
74·56	100	110
74·72	95	115
74·88	95	120
75·04	95	125
75·20	95	135
75·36	100	135
75·52	100	140
75·68	100	140
75·84	100	140
76·00	110	135
76·16	100	125
76·32	100	125
76·48	100	125
76·64	110	125
76·80	115	125
76·96	120	125
77·12	120	125
77·28	120	135
77·44	110	125
77·60	100	125
77·76	120	135
77·92	120	125
78·03	120	125
78·24	115	125
78·40	115	120
78·56	115	120
78·72	110	120
78·88	100	120
79·04	100	120
79·20	95	120
79·36	95	120
79·52	95	125
79·68	95	125
79·84	100	120
80·00	95	125
80·16	95	125
80·32	95	125
80·48	100	120
80·64	100	125
80·80	100	125
80·96	110	125
81·12	115	135
81·28	110	140
81·44	115	140
81·60	110	140
81·76	115	140
81·92	110	140
82·08	110	140
82·24	110	135
82·40	110	135
82·56	100	125
87·72	110	125
82·88	110	125
83·04	100	125
83·20	100	120
83·36	100	125
83·52	100	120
83·68	100	135
83·84	95	140
84·00	100	135
84·16	110	140
84·32	110	140
84·48	110	140
84·64	110	140
84·80	120	155
84·96	115	145
85·12	115	155
85·28	120	160
85·44	120	165
85·60	120	160
85·76	125	165
85·92	135	160
86·08	135	160
86·24	125	155
86·40	125	155
86·56	120	145
86·72	120	145
86·98	110	140
87·04	110	140
87·20	110	140
87·36	110	140
87·52	110	140
87·68	100	135
87·84	100	135
88·00	100	135
88·16	100	125
88·32	110	120
88·48	115	120
88·64	110	120
88·80	110	125
88·96	100	125
89·12	100	125
89·28	95	125
89·44	95	125
89·60	100	120
89·76	100	135
89·92	110	140
90·08	110	135
90·24	110	140
90·40	100	145
90·56	100	155
90·72	110	155
90·88	110	155
91·04	100	155
91·20	110	155
91·36	110	160
91·52	115	160
91·68	110	155
91·84	115	155
92·00	115	140
92·16	115	155
92·32	120	155
92·48	125	145
92·64	125	155
92·80	125	155
92·96	120	155
93·12	120	145
93·28	120	145
93·44	115	145
93·60	120	145
93·76	115	140
93·92	115	140
94·08	115	140
94·24	115	140
94·40	115	140
94·56	115	140
94·72	115	135
94·88	115	135
95·04	110	135
95·20	110	135
95·36	110	135
95·52	115	135
95·68	100	140
95·84	95	135
96·00	100	125
96·16	95	125
96·32	95	125
96·48	95	125
96·64	110	125
96·80	95	120
96·96	95	120
97·12	95	120
97·28	95	110
97·44	100	115
97·60	110	120
97·76	110	115
97·92	100	115
98·08	95	115
98·24	100	115
98·40	95	115
98·52	100	115
98·72	100	110
98·88	110	100
99·04	95	95
99·20	90	100
99·36	90	100
93·52	75	110
99·68	75	115
99·84	75	115
100·00	75	110

Appendix 3

Set-value signals for the test-stand inspection of the driver’s seat on Category A (Class I) tractors (point 3.5.3.1.1) U.K.

PS

=

set point

a

=

amplitude of the required value signal in 10^–4 m,

t

=

measurement time in seconds

When the sequence of signals is repeated in the table for 701 points, points 700 and 0 coincide in time at an amplitude of a = 0:

PS No	a10–4 m	ts
0	0	0
[F1 1	89
2	215]
3	272
4	192
5	127
6	115
7	169
8	243
9	298
10	320
11	270
12	191
13	124
14	57
15	27
16	4
17	– 13
18	– 39
19	– 55
20	– 56
21	– 59
22	– 68
23	– 104
24	– 134
25	– 147	1·0
26	– 144
27	– 143
28	– 155
29	– 179
30	– 181
31	– 155
32	– 139
33	– 141
34	– 170
35	– 221
36	– 259
37	– 281
38	– 268
39	– 258
40	– 285
41	– 348
42	– 437
43	– 509
44	– 547
45	– 562
46	– 550
47	– 550
48	– 576
49	– 622
50	– 669	2·0
51	– 689
52	– 634
53	– 542
54	– 429
55	– 314
56	– 282
57	– 308
58	– 373
59	– 446
60	– 469
61	– 465
62	– 417
63	– 352
64	– 262
65	– 211
66	– 180
67	– 182
68	– 210
69	– 222
70	– 210
71	– 186
72	– 141
73	– 88
74	– 33
75	0	3·0
76	1
77	– 40
78	– 98
79	– 130
80	– 115
81	– 68
82	– 36
83	– 32
84	– 50
85	– 52
86	– 39
87	– 11
88	14
89	41
90	54
91	40
92	6
93	– 0
94	25
95	65
96	76
97	54
98	– 16
99	– 66
100	– 48	4·0
101	– 11
102	61
103	131
104	168
105	161
106	131
107	86
108	67
109	88
110	110
111	148
112	153
113	139
114	119
115	99
116	91
117	78
118	59
119	62
120	72
121	122
122	155
123	191
124	184
125	143	5·0
126	87
127	29
128	10
129	25
130	74
131	106
132	115
133	90
134	48
135	38
136	66
137	116
138	180
139	229
140	212
141	157
142	97
143	55
144	73
145	175
146	287
147	380
148	406
149	338
150	238	6·0
151	151
152	80
153	90
154	146
155	196
156	230
157	222
158	184
159	147
160	115
161	114
162	140
163	198
164	257
165	281
166	276
167	236
168	201
169	167
170	145
171	135
172	165
173	242
174	321
175	399	7·0
176	411
177	373
178	281
179	179
180	109
181	94
182	136
183	206
184	271
185	267
186	203
187	91
188	9
189	6
190	74
191	186
192	280
193	342
194	330
195	265
196	184
197	118
198	105
199	128
200	174	8·0
201	215
202	229
203	221
204	199
205	164
206	162
207	174
208	210
209	242
210	270
211	285
212	285
213	258
214	223
215	194
216	165
217	132
218	106
219	77
220	65
221	73
222	99
223	114
224	111
225	83	9·0
226	26
227	– 28
228	– 52
229	– 69
230	– 77
231	– 67
232	– 95
233	– 128
234	– 137
235	– 144
236	– 131
237	– 155
238	– 208
239	– 266
240	– 285
241	– 276
242	– 205
243	– 110
244	– 20
245	41
246	53
247	20
248	16
249	41
250	90	10·0
251	136
252	151
253	123
254	70
255	34
256	– 1
257	– 10
258	– 31
259	– 61
260	– 86
261	– 104
262	– 103
263	– 93
264	– 74
265	– 56
266	– 39
267	– 0
268	33
269	67
270	97
271	85
272	34
273	2
274	– 50
275	– 80	11·0
276	– 96
277	– 121
278	– 116
279	– 92
280	– 60
281	– 18
282	– 11
283	– 52
284	– 143
285	– 241
286	– 330
287	– 343
288	– 298
289	– 235
290	– 203
291	– 249
292	– 356
293	– 448
294	– 486
295	– 444
296	– 343
297	– 240
298	– 215
299	– 277
300	– 399	12·0
301	– 527
302	– 585
303	– 569
304	– 479
305	– 363
306	– 296
307	– 299
308	– 374
309	– 466
310	– 528
311	– 520
312	– 432
313	– 320
314	– 244
315	– 237
316	– 310
317	– 413
318	– 462
319	– 456
320	– 351
321	– 181
322	– 45
323	13
324	– 37
325	– 160	13·0
326	– 247
327	– 258
328	– 187
329	– 69
330	44
331	78
332	61
333	– 12
334	– 102
335	– 127
336	– 103
337	– 45
338	39
339	94
340	107
341	58
342	– 11
343	– 78
344	– 93
345	– 68
346	– 25
347	21
348	8
349	– 16
350	– 38	14·0
351	– 24
352	41
353	135
354	196
355	171
356	53
357	– 111
358	– 265
359	– 348
360	– 336
361	– 258
362	– 155
363	– 59
364	– 56
365	– 123
366	– 187
367	– 218
368	– 136
369	12
370	149
371	212
372	153
373	21
374	– 104
375	– 160	15·0
376	– 142
377	– 27
378	99
379	186
380	174
381	85
382	– 31
383	– 86
384	– 69
385	12
386	103
387	164
388	129
389	47
390	– 55
391	– 97
392	– 56
393	43
394	162
395	220
396	205
397	129
398	53
399	22
400	52	16·0
401	114
402	175
403	191
404	172
405	138
406	92
407	52
408	51
409	25
410	1
411	– 26
412	– 65
413	– 73
414	– 38
415	– 1
416	29
417	30
418	– 5
419	– 45
420	– 68
421	– 93
422	– 75
423	– 67
424	– 51
425	– 49	17·0
426	– 59
427	– 77
428	– 107
429	– 143
430	– 141
431	– 142
432	– 106
433	– 80
434	– 50
435	– 30
436	– 14
437	– 17
438	– 31
439	– 37
440	– 68
441	– 113
442	– 167
443	– 203
444	– 191
445	– 135
446	– 47
447	28
448	32
449	– 31
450	– 108	18·0
451	– 157
452	– 155
453	– 81
454	– 12
455	53
456	85
457	54
458	2
459	– 26
460	– 34
461	– 14
462	31
463	61
464	98
465	123
466	103
467	78
468	46
469	42
470	44
471	72
472	109
473	133
474	138
475	125	19·0
476	95
477	105
478	129
479	181
480	206
481	200
482	168
483	140
484	149
485	186
486	237
487	242
488	207
489	130
490	55
491	15
492	14
493	36
494	54
495	56
496	22
497	– 32
498	– 76
499	– 108
500	– 99	20·0
501	– 29
502	51
503	138
504	199
505	213
506	184
507	139
508	62
509	27
510	30
511	67
512	146
513	247
514	314
515	330
516	289
517	224
518	179
519	184
520	216
521	229
522	210
523	130
524	62
525	6	21·0
526	– 4
527	4
528	18
529	31
530	20
531	14
532	– 11
533	– 22
534	– 29
535	– 42
536	– 66
537	– 120
538	– 188
539	– 241
540	– 252
541	– 243
542	– 212
543	– 183
544	– 170
545	– 189
546	– 233
547	– 286
548	– 311
549	– 280
550	– 215	22·0
551	– 128
552	– 38
553	– 18
554	– 24
555	– 52
556	– 55
557	– 33
558	13
559	61
560	79
561	60
562	24
563	– 13
564	– 27
565	– 18
566	11
567	64
568	111
569	171
570	238
571	285
572	295
573	261
574	201
575	145	23·0
576	142
577	163
578	222
579	284
580	334
581	342
582	301
583	240
584	205
585	216
586	257
587	326
588	363
589	380
590	358
591	303
592	273
593	341
594	249
595	252
596	245
597	244
598	225
599	212
600	180	24·0
601	160
602	130
603	118
604	104
605	81
606	40
607	– 4
608	– 40
609	– 57
610	– 49
611	– 21
612	11
613	33
614	38
615	27
616	19
617	24
618	40
619	69
620	82
621	86
622	68
623	56
624	36
625	6	25·0
626	– 15
627	– 49
628	– 71
629	– 75
630	– 78
631	– 74
632	– 69
633	– 94
634	– 116
635	– 150
636	– 178
637	– 188
638	– 198
639	– 194
640	– 187
641	– 170
642	– 161
643	– 154
644	– 140
645	– 115
646	– 55
647	1
648	49
649	85
650	94	26·0
651	71
652	39
653	– 1
654	– 27
655	– 25
656	0
657	28
658	45
659	19
660	– 32
661	– 101
662	– 162
663	– 198
664	– 193
665	– 149
666	– 96
667	– 75
668	– 86
669	– 151
670	– 246
671	– 329
672	– 382
673	– 392
674	– 340
675	– 286	27·0
676	– 249
677	– 245
678	– 298
679	– 348
680	– 366
681	– 330
682	– 247
683	– 175
684	– 135
685	– 149
686	– 165
687	– 178
688	– 142
689	– 97
690	– 67
691	– 51
692	– 71
693	– 101
694	– 110
695	– 91
696	– 43
697	20
698	61
[F1 699	23
700	0	28·0]

Appendix 4a

Set-value signals for the test-stand inspection of the driver’s seat on Category A (Class II) tractors (point 3.5.3.1.1) U.K.

PS

=

set point

a

=

amplitude of the required value signal in 10^–4 m

t

=

measurement time in seconds

When the sequence of signals is repeated in the table for 701 points, points 700 and 0 coincide in time at an amplitude of a = 0:

PS No	a10–4 m	ts
0	0	0
[F1 1	22
2	89]
3	144
4	162
5	210
6	272
7	336
8	382
9	404
10	408
11	376
12	324
13	275
14	226
15	176
16	141
17	126
18	144
19	180
20	205
21	198
22	184
23	138
24	102
25	68	1·0
26	50
27	55
28	78
29	120
30	184
31	209
32	224
33	206
34	157
35	101
36	49
37	– 2
38	– 38
39	– 68
40	– 88
41	– 100
42	– 110
43	– 151
44	– 183
45	– 234
46	– 303
47	– 364
48	– 410
49	– 407
50	– 367	2·0
51	– 289
52	– 180
53	– 81
54	– 0
55	– 11
56	– 70
57	– 168
58	– 256
59	– 307
60	– 302
61	– 249
62	– 157
63	– 56
64	13
65	44
66	25
67	– 26
68	– 77
69	– 115
70	– 131
71	– 102
72	– 31
73	35
74	78
75	57	3·0
76	0
77	– 69
78	– 124
79	– 143
80	– 129
81	– 91
82	– 45
83	– 4
84	– 4
85	– 16
86	– 47
87	– 80
88	– 83
89	– 80
90	– 60
91	– 29
92	– 13
93	– 4
94	– 39
95	– 100
96	– 171
97	– 218
98	– 226
99	– 190
100	– 116	4·0
101	– 54
102	– 1
103	– 1
104	– 45
105	– 126
106	– 191
107	– 223
108	– 206
109	– 168
110	– 122
111	– 95
112	– 101
113	– 114
114	– 161
115	– 212
116	– 254
117	– 273
118	– 258
119	– 211
120	– 169
121	– 125
122	– 115
123	– 127
124	– 156
125	– 185	5·0
126	– 232
127	– 256
128	– 260
129	– 260
130	– 247
131	– 228
132	– 204
133	– 192
134	– 179
135	– 144
136	– 128
137	– 117
138	– 131
139	– 154
140	– 164
141	– 160
142	– 128
143	– 59
144	15
145	74
146	34
147	42
148	– 34
149	– 101
150	– 147	6·0
151	– 141
152	– 91
153	– 31
154	17
155	27
156	– 12
157	– 58
158	– 127
159	– 151
160	– 125
161	– 49
162	45
163	104
164	122
165	104
166	46
167	– 18
168	– 47
169	– 36
170	16
171	145
172	257
173	330
174	330
175	258	7·0
176	138
177	34
178	– 37
179	– 30
180	26
181	141
182	216
183	243
184	188
185	79
186	– 15
187	– 47
188	– 8
189	91
190	230
191	340
192	381
193	332
194	225
195	99
196	14
197	– 12
198	33
199	131
200	247	8·0
201	335
202	348
203	314
204	239
205	161
206	124
207	139
208	218
209	328
210	405
211	426
212	403
213	314
214	191
215	88
216	25
217	30
218	87
219	173
220	240
221	274
222	250
223	182
224	77
225	– 19	9·0
226	– 75
227	– 61
228	– 33
229	11
230	42
231	25
232	– 21
233	– 78
234	– 142
235	– 197
236	– 225
237	– 217
238	– 196
239	– 133
240	– 38
241	52
242	128
243	168
244	164
245	169
246	170
247	188
248	210
249	220
250	210	10·0
251	185
252	149
253	100
254	57
255	35
256	6
257	– 0
258	10
259	34
260	47
261	47
262	31
263	28
264	36
265	72
266	125
267	188
268	216
269	189
270	119
271	31
272	– 26
273	– 59
274	– 52
275	– 9	11·0
276	39
277	81
278	107
279	79
280	23
281	– 44
282	– 121
283	– 168
284	– 172
285	– 147
286	– 119
287	– 114
288	– 155
289	– 217
290	– 287
291	– 243
292	– 341
293	– 289
294	– 217
295	– 157
296	– 150
297	– 193
298	– 248
299	– 319
300	– 371	12·0
301	– 378
302	– 354
303	– 309
304	– 264
305	– 241
306	– 236
307	– 264
308	– 262
309	– 282
310	– 275
311	– 278
312	– 285
313	– 302
314	– 318
315	– 316
316	– 293
317	– 238
318	– 154
319	– 70
320	– 21
321	– 29
322	– 75
323	– 138
324	– 189
325	– 193	13·0
326	– 153
327	– 95
328	– 12
329	33
330	69
331	64
332	0
333	– 74
334	– 147
335	– 164
336	– 142
337	– 67
338	– 1
339	57
340	80
341	40
342	– 10
343	– 96
344	– 148
345	– 164
346	– 134
347	– 60
348	38
349	136
350	195	14·0
351	170
352	77
353	– 67
354	– 212
355	– 321
356	– 356
357	– 339
358	– 277
359	– 189
360	– 119
361	– 100
362	– 124
363	– 170	14·0
364	– 193
365	– 173
366	– 105
367	– 0
368	75
369	92
370	74
371	11
372	– 49
373	– 82
374	– 76
375	– 39	15·0
376	10
377	53
378	78
379	68
380	33
381	4
382	– 0
383	– 13
384	– 3
385	0
386	– 1
387	– 10
388	– 23
389	– 19
390	14
391	60
392	93
393	117
394	137
395	123
396	98
397	75
398	55
399	62
400	87	16·0
401	113
402	126
403	139
404	119
405	80
406	23
407	– 43
408	– 99
409	– 121
410	– 90
411	– 9
412	72
413	120
414	111
415	49
416	– 21
417	– 98
418	– 136
419	– 117
420	– 72
421	– 20
422	38
423	61
424	26
425	– 16	17·0
426	– 90
427	– 151
428	– 171
429	– 150
430	– 80
431	– 1
432	64
433	113
434	109
435	89
436	16
437	– 40
438	– 98
439	– 142
440	– 147
441	– 112
442	– 28
443	58
444	118
445	124
446	80
447	6
448	– 52
449	– 68
450	– 50	18·0
451	– 0
452	63
453	129
454	155
455	156
456	111
457	69
458	49
459	36
460	56
461	100
462	143
463	178
464	193
465	178
466	136
467	87
468	50
469	41
470	67
471	117
472	165
473	188
474	178
475	171	19·0
476	154
477	141
478	137
479	146
480	177
481	231
482	282
483	314
484	287
485	222
486	138
487	50
488	– 3
489	1
490	41
491	95
492	124
493	112
494	60
495	– 22
496	– 112
497	– 161
498	– 153
499	– 87
500	30	20·0
501	127
502	197
503	203
504	147
505	60
506	– 27
507	– 103
508	– 96
509	– 26
510	62
511	198
512	275
513	293
514	244
515	149
516	56
517	5
518	– 1
519	23
520	35
521	63
522	34
523	– 9
524	– 74
525	– 154	21·0
526	– 203
527	– 204
528	– 167
529	– 119
530	– 77
531	– 68
532	– 94
533	– 168
534	– 254
535	– 337
536	– 383
537	– 400
538	– 391
539	– 365
540	– 346
541	– 342
542	– 372
543	– 398
544	– 431
545	– 464
546	– 459
547	– 425
548	– 354
549	– 259
550	– 187	22·0
551	– 174
552	– 182
553	– 211
554	– 241
555	– 228
556	– 192
557	– 131
558	– 66
559	– 50
560	– 65
561	– 117
562	– 164
563	– 191
564	– 165
565	– 109
566	– 25
567	81
568	163
569	191
570	164
571	89
572	– 4
573	– 75
574	– 99
575	– 54	23·0
576	24
577	126
578	203
579	223
580	200
581	113
582	26
583	– 8
584	– 3
585	57
586	149
587	236
588	290
589	299
590	244
591	192
592	145
593	95
594	90
595	111
596	151
597	186
598	185
599	165
600	120	24·0
601	57
602	8
603	– 22
604	– 44
605	– 62
606	– 70
607	– 61
608	– 57
609	– 44
610	– 40
611	– 37
612	– 28
613	– 17
614	– 6
615	11
616	32
617	45
618	50
619	39
620	36
621	27
622	25
623	6
624	0
625	– 12	25·0
626	– 40
627	– 47
628	– 58
629	– 70
630	– 76
631	– 98
632	– 103
633	– 127
634	– 158
635	– 158
636	– 163
637	– 182
638	– 177
639	– 184
640	– 201
641	– 199
642	– 187
643	– 145
644	– 92
645	– 40
646	17
647	44
648	61
649	29
650	– 18	26·0
651	– 78
652	– 129
653	– 135
654	– 110
655	– 39
656	8
657	19
658	– 33
659	– 102
660	– 194
661	– 264
662	– 292
663	– 261
664	– 210
665	– 147
666	– 92
667	– 89
668	– 138
669	– 248
670	– 360
671	– 455
672	– 497
673	– 473
674	– 393
675	– 294	27·0
676	– 230
677	– 214
678	– 241
679	– 294
680	– 343
681	– 375
682	– 379
683	– 349
684	– 276
685	– 202
686	– 136
687	– 99
688	– 101
689	– 139
690	– 196
691	– 246
692	– 256
693	– 234
694	– 156
695	– 78
696	15
697	83
698	118
[F1 699	62]
700	0	31·0

Appendix 4b

Set-value signals for the test-stand testing of drivers’ seats for category A tractors in class III (point 3.5.3.1.1) U.K.

PS

=

set point

a

=

amplitude of the set value signal in mm

t

=

measurement time in seconds

If the signal sequence is repeated for 701 points in the table, point 700 and 0 merge in time, with amplitude a = 0.

PSNo	amm	ts
1	0	0,0
2	– 3	0,027
3	– 0	0,055
4	2	0,082
5	4	0,109
6	6	0,137
7	6	0,164
8	5	0,192
9	3	0,219
10	1	0,246
11	– 0	0,274
12	– 2	0,301
13	– 4	0,328
14	– 4	0,356
15	– 4	0,383
16	– 2	0,411
17	– 1	0,439
18	0	0,465
19	2	0,493
20	3	0,52
21	4	0,547
22	3	0,575
23	1	0,602
24	0	0,63
25	– 1	0,657
26	– 3	0,684
27	– 4	0,712
28	– 4	0,739
29	– 4	0,766
30	– 2	0,794
31	– 0	0,821
32	2	0,848
33	4	0,876
34	6	0,903
35	6	0,931
36	6	0,958
37	4	0,985
38	1	1,013
39	– 1	1,04
40	– 4	1,067
41	– 6	1,093
42	– 8	1,122
43	– 8	1,15
44	– 7	1,177
45	– 4	1,204
46	– 1	1,232
47	2	1,259
48	6	1,286
49	8	1,314
50	10	1,341
51	10	1,369
52	8	1,396
53	4	1,423
54	0	1,451
55	– 4	1,478
56	– 8	1,505
57	– 11	1,533
58	– 13	1,56
59	– 12	1,587
60	– 9	1,613
61	– 4	1,642
62	6	1,67
63	6	1,697
64	11	1,724
65	15	1,752
66	16	1,779
67	14	1,806
68	11	1,834
69	5	1,861
70	– 1	1,869
71	– 8	1,916
72	– 14	1,943
73	– 18	1,971
74	– 19	1,998
75	– 17	2,025
76	– 13	2,053
77	– 6	2,08
78	0	2,108
79	8	2,135
80	15	2,162
81	19	2,19
82	21	2,217
83	19	2,244
84	15	2,272
85	8	2,299
86	0	2,326
87	– 7	2,354
88	– 15	2,361
89	– 19	2,409
90	– 21	2,436
91	– 20	2,463
92	– 15	2,491
93	– 8	2,518
94	– 0	2,545
95	7	2,573
96	14	2,6
97	19	2,628
98	21	2,655
99	19	2,662
100	14	2,71
101	7	2,737
102	– 0	2,764
103	– 8	2,792
104	– 15	2,819
105	– 19	2,847
106	– 20	2,874
107	– 18	2,901
108	– 13	2,929
109	– 5	2,956
110	2	2,983
111	10	3,011
112	16	3,038
113	20	3,055
114	20	3,093
115	17	3,12
116	12	3,148
117	5	3,175
118	– 3	3,202
119	– 10	3,23
120	– 17	3,257
121	– 20	3,284
122	– 21	3,312
123	– 18	3,339
124	– 13	3,367
125	– 6	3,396
126	2	3,421
127	10	3,449
128	16	3,476
129	21	3,503
130	22	3,531
131	20	3,558
132	15	3,586
133	8	3,613
134	0	3,64
135	– 8	3,668
136	– 15	3,695
137	– 20	3,722
138	– 23	3,75
139	– 22	3,777
140	– 18	3,804
141	– 11	3,832
142	– 3	3,859
143	5	3,887
144	13	3,914
145	19	3,941
146	23	3,969
147	23	3,996
148	20	4,023
149	14	4,051
150	6	4,078
151	– 2	4,106
152	– 11	4,133
153	– 17	4,16
154	– 21	4,188
155	– 22	4,215
156	– 20	4,242
157	– 14	4,27
158	– 7	4,297
159	0	4,325
160	8	4,352
161	14	4,379
162	18	4,407
163	19	4,434
164	17	4,461
165	13	4,489
166	7	4,516
167	0	4,543
168	– 6	4,571
169	– 11	4,598
170	– 14	4,626
171	– 16	4,653
172	– 14	4,68
173	– 11	4,708
174	– 6	4,735
175	– 1	4,762
176	4	4,79
177	8	4,817
178	12	4,845
179	13	4,872
180	13	4,899
181	11	4,927
182	7	4,954
183	3	4,981
184	– 1	5,009
185	– 5	5,036
186	– 9	5,064
187	– 11	5,091
188	– 12	5,118
189	– 12	5,146
190	– 10	5,173
191	– 6	5,2
192	– 2	5,228
193	1	5,255
194	5	5,283
195	9	5,31
196	11	5,337
197	13	5,365
198	12	5,392
199	11	5,419
200	7	5,447
201	3	5,474
202	– 0	5,501
203	– 5	5,529
204	– 9	5,556
205	– 12	5,584
206	– 14	5,611
207	– 14	5,638
208	– 12	5,666
209	– 9	5,693
210	– 4	5,72
211	0	5,748
212	5	5,775
213	9	5,803
214	13	5,83
215	15	5,857
216	15	5,885
217	13	5,912
218	9	5,939
219	4	5,967
220	– 1	5,994
221	– 7	6,022
222	– 11	6,049
223	– 15	6,076
224	– 16	6,104
225	– 16	6,131
226	– 12	6,158
227	– 7	6,186
228	– 1	6,213
229	4	6,24
230	10	6,268
231	16	6,295
232	17	6,323
233	17	6,35
234	14	6,377
235	9	6,405
236	3	6,432
237	– 3	6,459
238	– 10	6,487
239	– 15	6,514
240	– 19	6,542
241	– 19	6,569
242	– 17	6,596
243	– 12	6,624
244	– 6	6,651
245	1	6,678
246	9	6,706
247	16	6,733
248	21	6,761
249	22	6,783
250	21	6,815
251	16	6,843
252	9	6,87
253	0	6,897
254	– 8	6,925
255	– 16	6,952
256	– 22	6,979
257	– 25	7,007
258	– 24	7,034
259	– 20	7,062
260	– 13	7,089
261	– 4	7,116
262	5	7,144
263	14	7,171
264	24	7,198
265	25	7,226
266	26	7,253
267	23	7,281
268	17	7,308
269	8	7,335
270	– 1	7,363
271	– 11	7,39
272	– 20	7,417
273	– 26	7,445
274	– 27	7,472
275	– 25	7,5
276	– 19	7,527
277	– 11	7,554
278	– 1	7,582
279	9	7,609
280	18	7,636
281	24	7,664
282	27	7,691
283	26	7,718
284	21	7,746
285	13	7,773
286	4	7,801
287	– 5	7,828
288	– 13	7,855
289	– 20	7,883
290	– 24	7,91
291	– 25	7,937
292	– 22	7,965
293	– 17	7,992
294	– 9	8,02
295	– 1	8,047
296	7	8,074
297	14	8,102
298	20	8,129
299	22	8,156
300	22	8,184
301	19	8,211
302	13	8,239
303	6	8,266
304	– 1	8,293
305	– 9	8,321
306	– 15	8,348
307	– 19	8,375
308	– 20	8,403
309	– 19	8,43
310	– 14	8,457
311	– 8	8,485
312	– 0	8,512
313	6	8,54
314	12	8,567
315	16	8,594
316	18	8,622
317	16	8,649
318	12	8,676
319	6	8,704
320	0	8,731
321	– 7	8,759
322	– 12	8,786
323	– 15	8,813
324	– 16	8,841
325	– 13	8,868
326	– 8	8,895
327	– 1	8,923
328	5	8,95
329	11	8,978
330	15	9,005
331	17	9,032
332	15	9,06
333	11	9,087
334	5	9,114
335	– 2	9,142
336	– 9	9,169
337	– 15	9,196
338	– 18	9,224
339	– 19	9,261
340	– 16	9,279
341	– 11	9,306
342	– 3	9,333
343	4	9,361
344	11	9,388
345	16	9,415
346	19	9,443
347	19	9,47
348	16	9,498
349	11	9,525
350	4	9,552
351	– 2	9,58
352	– 9	9,607
353	– 14	9,634
354	– 17	9,662
355	– 18	9,689
356	– 16	9,717
357	– 12	9,744
358	– 7	9,771
359	– 1	9,799
360	4	9,826
361	9	9,853
362	13	9,881
363	16	9,908
364	15	9,935
365	14	9,963
366	10	9,99
367	5	10,018
368	– 0	10,045
369	– 5	10,072
370	– 10	10,1
371	– 13	10,127
372	– 15	10,154
372	– 14	10,182
374	– 12	10,209
375	– 7	10,237
376	– 2	10,264
377	2	10,291
378	8	10,319
379	11	10,346
380	13	10,373
381	13	10,401
382	11	10,428
383	7	10,456
384	2	10,483
385	– 2	10,51
386	– 7	10,538
387	– 10	10,565
388	– 11	10,592
389	– 11	10,62
390	– 8	10,647
391	– 5	10,674
392	– 0	10,702
393	3	10,729
394	7	10,757
395	9	10,784
396	9	10,811
397	8	10,839
398	5	10,866
399	1	10,893
400	– 2	10,921
401	– 6	10,949
402	– 7	10,975
403	– 8	11,003
404	– 7	11,03
405	– 5	11,058
406	– 2	11,085
407	0	11,112
408	4	11,14
409	6	11,167
410	7	11,195
411	7	11,222
412	6	11,249
413	4	11,277
414	1	11,304
415	– 1	11,331
416	– 4	11,359
417	– 7	11,386
418	– 8	11,413
419	– 8	11,441
420	– 6	11,468
421	– 4	11,496
422	– 1	11,523
423	1	11,55
424	4	11,578
425	7	11,605
426	8	11,632
427	8	11,66
428	7	11,687
429	5	11,715
430	2	11,742
431	– 0	11,769
432	– 2	11,797
433	– 4	11,824
434	– 6	11,851
435	– 7	11,879
436	– 6	11,906
437	– 6	11,934
438	– 4	11,961
439	– 3	11,988
440	– 1	12,016
441	0	12,043
442	2	12,07
443	4	12,098
444	6	12,125
445	7	12,152
446	7	12,18
447	7	12,207
448	6	12,235
449	4	12,262
450	1	12,289
451	– 1	12,317
452	– 5	12,344
453	– 8	12,371
454	– 10	12,399
455	– 11	12,426
456	– 11	12,454
457	– 9	12,481
458	– 5	12,509
459	– 1	12,536
460	3	12,563
461	8	12,59
462	11	12,618
463	13	12,645
464	12	12,673
465	10	12,7
466	7	12,727
467	2	12,755
468	– 2	12,782
469	– 6	12,809
470	– 9	12,837
471	– 10	12,864
472	– 10	12,891
473	– 8	12,915
474	– 5	12,946
475	– 2	12,974
476	1	13,001
477	3	13,028
478	6	13,056
479	6	13,083
480	5	13,11
481	4	13,138
482	2	13,165
483	0	13,193
484	– 0	13,22
485	– 1	13,247
486	– 2	13,275
487	– 2	13,302
488	– 1	13,329
489	– 1	13,357
490	– 0	13,384
491	0	13,412
492	1	13,439
493	1	13,466
494	1	13,494
495	0	13,521
496	0	13,548
497	– 0	13,576
498	– 1	13,603
499	– 1	13,63
500	– 1	13,659
501	– 1	13,685
502	– 1	13,713
503	– 1	13,74
504	– 0	13,767
505	– 0	13,795
506	0	13,822
507	1	13,849
508	1	13,877
509	2	13,904
510	2	13,932
511	2	13,959
512	2	13,986
513	1	14,014
514	1	14,041
515	0	14,068
516	– 0	14,096
517	– 1	14,123
518	– 1	14,151
519	– 2	14,178
520	– 2	14,205
521	– 2	14,233
522	– 2	14,26
523	– 1	14,287
524	– 1	14,316
525	– 1	14,342
526	– 0	14,37
527	– 0	14,397
528	0	14,424
529	0	14,452
530	1	14,479
531	2	14,506
532	2	14,534
533	3	14,561
534	4	14,598
535	4	14,616
536	3	14,643
537	2	14,671
538	1	14,698
539	– 0	14,725
540	– 2	14,753
541	– 5	14,78
542	– 7	14,807
543	– 8	14,835
544	– 8	14,862
545	– 7	14,89
546	– 5	14,917
547	– 1	14,944
548	1	14,972
549	6	14,999
550	9	15,026
551	12	15,054
552	13	15,081
553	11	15,109
554	9	15,136
555	4	15,163
556	– 0	15,191
557	– 6	15,218
558	– 11	15,245
559	– 15	15,273
560	– 16	15,3
561	– 15	15,327
562	– 12	15,356
563	– 6	15,382
564	– 0	15,41
565	6	15,437
566	12	15,464
567	17	15,492
568	19	15,519
569	18	15,546
570	14	15,574
571	8	15,601
572	1	15,629
573	– 6	15,656
574	– 12	15,683
575	– 17	15,711
576	– 19	15,738
577	– 19	15,766
578	– 15	15,793
579	– 10	15,82
580	– 8	15,848
581	4	15,875
582	11	15,902
583	16	15,93
584	18	15,957
585	18	15,984
586	15	16,012
587	10	16,039
588	3	16,066
589	– 3	16,094
590	– 10	16,121
591	– 15	16,149
592	– 17	16,176
593	– 17	16,203
594	– 15	15,231
595	– 10	16,258
596	– 3	16,285
597	2	16,313
598	9	16,34
599	14	16,368
600	16	16,395
601	17	16,422
602	14	16,45
603	10	16,477
604	5	16,504
605	– 1	16,532
606	– 7	16,559
607	– 12	16,587
608	– 15	16,614
609	– 16	16,641
610	– 16	16,669
611	– 13	16,696
612	– 8	16,728
613	– 3	16,741
614	2	16,776
615	8	16,803
616	12	16,833
617	15	16,86
618	16	16,888
619	15	16,915
620	12	16,942
621	8	16,97
622	2	16,997
623	– 2	17,024
624	– 8	17,052
625	– 12	17,079
626	– 14	17,107
627	– 15	17,134
628	– 14	17,161
629	– 11	17,189
630	– 7	17,216
631	– 2	17,243
632	1	17,271
633	6	17,298
634	9	17,326
635	11	17,353
636	12	17,38
637	11	17,408
638	9	17,435
639	6	17,462
640	2	17,49
641	– 0	17,517
642	– 3	17,544
643	– 5	17,572
644	– 6	17,599
645	– 6	17,627
646	– 6	17,654
647	– 4	17,681
648	– 3	17,709
649	– 1	17,736
650	– 0	17,763
651	0	17,791
652	1	17,818
653	0	17,845
654	0	17,873
655	0	17,9
656	– 0	17,928
657	– 0	17,955
658	– 0	17,982
659	0	18,01
660	1	18,037
661	3	18,065
662	4	18,092
663	5	18,119
664	5	18,147
665	5	18,174
666	4	18,201
667	2	18,229
668	– 0	18,256
669	– 3	18,283
670	– 6	18,311
671	– 9	18,339
672	– 10	18,366
673	– 10	18,393
674	– 9	18,42
675	– 6	18,448
676	– 3	18,475
677	1	18,502
678	6	18,53
679	10	18,557
680	12	18,585
681	14	18,612
682	13	18,639
683	10	18,667
684	6	18,694
685	1	18,721
686	– 3	18,749
687	– 6	18,776
688	– 11	18,804
689	– 13	18,831
690	– 13	18,858
691	– 10	18,886
692	– 7	18,913
693	– 3	18,94
694	1	18,968
695	4	18,996
696	7	19,022
697	8	19,05
698	8	19,077
699	6	19,105
700	4	19,132
701	1	19,159
702	– 0	19,187
703	– 2	19,214
704	– 2	19,241
705	– 2	19,269
706	– 1	19,296
707	0	19,324
708	1	19,351
709	2	19,978
710	2	19,406
711	1	19,433
712	– 0	19,46
713	– 2	19,488
714	– 5	19,515
715	– 6	19,543
716	– 7	19,57
717	– 7	19,597
718	– 5	19,625
719	– 3	19,652
720	0	19,679
721	3	19,707
722	7	19,734
723	9	19,761
724	11	19,789
725	11	19,816
726	10	19,844
727	7	19,871
728	3	19,898
729	– 0	19,926
730	– 4	19,953
731	– 8	19,98
732	– 11	20,008
733	– 12	20,035
734	– 12	20,063
735	– 10	20,09
736	– 7	20,117
737	– 3	20,145
738	0	20,172
739	5	20,199
740	8	20,227
741	11	20,254
742	12	20,282
743	11	20,309
744	9	20,336
745	6	20,354
746	1	20,391
747	– 2	20,418
748	– 6	20,446
749	– 9	20,473
750	– 10	20,5
751	– 9	20,526
752	– 7	20,556
753	– 4	20,583
754	– 1	20,61
755	2	20,637
756	5	20,665
757	7	20,692
758	8	20,719
759	7	20,747
760	5	20,774
761	2	20,802
762	– 1	20,829
763	– 4	20,856
764	– 7	20,884
765	– 9	20,911
766	– 9	20,938
767	– 7	20,966
768	– 5	20,993
769	– 1	21,021
770	2	21,048
771	5	21,075
772	8	21,103
773	10	21,13
774	10	21,157
775	8	21,185
776	6	21,212
777	2	21,239
778	– 1	21,267
779	– 4	21,294
780	– 7	21,322
781	– 9	21,349
782	– 9	21,376
783	– 8	21,404
784	– 7	21,431
785	– 4	21,458
786	– 1	21,486
787	1	21,513
788	4	21,541
789	6	21,568
790	7	21,595
791	7	21,623
792	7	21,65
793	5	21,677
794	3	21,705
795	0	21,732
796	– 1	21,76
797	– 4	21,787
798	– 5	21,814
799	– 6	21,842
800	– 5	21,869
801	– 4	21,896
802	– 2	21,924
803	– 0	21,951
804	2	21,978
805	4	22,006
806	5	22,033
807	5	22,061
808	4	22,088
809	3	22,115
810	0	22,143
811	– 1	22,17
812	– 3	22,197
813	– 5	22,225
814	– 6	22,252
815	– 5	22,28
816	– 4	22,307
817	– 3	22,334
818	– 0	22,362
819	1	22,389
820	4	22,416
821	5	22,444
822	6	22,471
824	6	22,526
825	5	22,553
826	3	22,581
827	0	22,608
828	– 2	22,635
829	– 4	22,663
830	– 7	22,69
831	– 8	22,717
832	– 9	22,745
833	– 8	22,772
834	– 7	22,8
835	– 4	22,827
836	– 1	22,854
837	2	22,882
838	6	22,909
839	9	22,936
840	11	22,964
841	12	22,991
842	11	23,019
843	9	23,046
844	5	23,073
845	0	23,101
846	– 5	23,128
847	– 9	23,155
848	– 13	23,183
849	– 15	23,21
850	– 15	23,238
851	– 13	23,265
852	– 9	23,292
853	– 3	23,32
854	3	23,347
855	9	23,374
856	14	23,402
857	18	23,429
858	18	23,457
859	16	23,484
860	12	23,511
861	5	23,539
862	– 1	23,566
863	– 7	23,593
864	– 13	23,621
865	– 16	23,648
866	– 17	23,675
867	– 16	23,703
868	– 12	23,73
869	– 7	23,758
870	– 1	23,785
871	4	23,812
872	9	23,84
873	12	23,867
874	14	23,894
875	13	23,922
876	11	23,949
877	7	23,977
878	2	24,004
879	– 1	24,031
880	– 6	24,059
881	– 9	24,086
882	– 11	24,113
883	– 11	24,141
884	– 9	24,168
885	– 6	24,196
886	– 3	24,223
887	0	24,25
888	4	24,278
889	7	24,305
890	9	24,332
891	9	24,36
892	8	24,387
893	6	24,414
894	3	24,442
895	– 0	24,469
896	– 3	24,497
897	– 6	24,524
898	– 8	24,551
899	– 9	24,579
900	– 8	24,606
901	– 6	24,633
902	– 2	24,661
903	0	24,688
904	4	24,716
905	7	24,743
906	8	24,77
907	9	24,798
908	7	24,825
909	5	24,852
910	1	24,88
911	– 2	24,907
912	– 6	24,935
913	– 8	24,962
914	– 10	24,989
915	– 9	25,017
916	– 7	25,044
917	– 3	25,071
918	0	25,099
919	4	25,126
920	8	25,153
921	11	25,181
922	12	25,208
923	11	25,236
924	9	25,263
925	4	25,29
926	– 0	25,318
927	– 5	25,345
928	– 9	25,372
929	– 12	25,4
930	– 13	25,427
931	– 12	25,455
932	– 9	25,482
933	– 5	25,509
934	– 0	25,537
935	4	25,564
936	8	25,591
937	11	25,619
938	13	25,645
939	13	25,674
940	11	25,701
941	7	25,728
942	3	25,756
943	– 1	25,783
944	– 5	25,81
945	– 8	25,839
946	– 10	25,855
947	– 11	25,892
948	– 10	25,92
949	– 8	25,947
950	– 6	25,975
951	– 2	26,002
952	0	26,029
953	3	26,057
954	5	26,084
955	7	26,111
956	8	26,139
957	8	26,166
958	7	26,194
959	6	26,221
960	4	26,248
961	2	26,276
962	0	26,303
963	– 2	26,33
964	– 4	26,358
965	– 5	26,385
966	– 6	26,413
967	– 7	26,44
968	– 7	26,467
969	– 7	26,495
970	– 6	26,522
971	– 4	26,549
972	– 2	26,577
973	0	26,604
974	3	26,631
975	6	26,659
976	9	26,686
977	10	26,714
978	11	26,741
979	10	26,768
980	8	26,796
981	5	26,823
982	1	26,85
983	– 3	26,878
984	– 7	26,905
985	– 10	26,933
986	– 12	26,96
987	– 13	26,987
988	– 12	27,015
989	– 10	27,042
990	– 6	27,069
991	– 2	27,097
992	2	27,124
993	6	27,152
994	10	27,179
995	12	27,206
996	14	27,234
997	13	27,261
998	11	27,288
999	8	27,316
1000	3	27,343
1001	– 0	27,37
1002	– 5	27,399
1003	– 9	27,426
1004	– 12	27,453
1005	– 13	27,48
1006	– 13	27,507
1007	– 11	27,535
1008	– 7	27,562
1009	– 2	27,589
1010	1	27,617
1011	6	27,644
1012	9	27,672
1013	11	27,699
1014	12	27,726
1015	10	27,754
1016	8	27,781
1017	4	27,808
1018	0	27,836
1019	– 3	27,863
1020	– 6	27,891
1021	– 8	27,918
1022	– 9	27,945
1023	– 8	27,973
1024	0	28,0

Appendix 5

Test stand (point 3.5.3.1); example of construction (dimensions in mm) U.K.

Appendix 6

Characteristic of the filter of the vibration measuring instrument (point 3.5.3.3.5) U.K.

Appendix 7

Driver’s seat installation requirements for EU type-approval of a tractor U.K.

1. Every driver’s seat with suspension system must bear the EU component type-approval mark and comply with the following installation requirements: U.K.

1.1.

the driver’s seat must be installed in such a way that:

1.1.1.

the driver is assured of a comfortable position for driving and manoeuvring the tractor;

1.1.2.

the seat is easily accessible;

1.1.3.

the driver, when seated in the normal driving position, can easily reach the various control devices of the tractor that are likely to be actuated during operation;

1.1.4.

no part of any of the seat or tractor components is likely to cause the driver to suffer cuts or bruises;

1.1.5.

where the position of the seat is adjustable only lengthwise and vertically, the longitudinal axis passing through the Seat Reference Point (S) shall be parallel with the vertical longitudinal plane of the tractor passing through the centre of the steering wheel and not more than 100 mm from that plane.

1.1.6.

where the seat is designed to revolve round a vertical axis it must be capable of being locked in all or certain positions and in any case in the position mentioned in point 1.1.5.

2. The holder of the EU type-approval may request that it be extended to other types of seat. The competent authorities must grant this extension on the following conditions: U.K.

2.1.

the new type of seat has received EU component type-approval;

2.2.

it has been designed to be installed on the type of tractor for which the extension of the EU type-approval has been requested;

2.3.

it is installed in such a manner as to comply with the installation requirements in this Annex.

3. Seats intended for tractors with a minimum rear-wheel track of not more than 1 150 mm may have the following minimum dimensions in respect of the depth and width of the seat surface: U.K.

• depth of seat surface: 300 mm;

• width of seat surface: 400 mm.

This provision is applicable only if the values specified for the depth and the width of the seat surface (i.e. 400 ± 50 mm and at least 450 mm respectively) cannot be adhered to on grounds relating to the tractor.

Appendix 8

Method for determining the seat reference point (S) U.K.

1. Device for determining the seat reference point (S) U.K.

The device illustrated in Figure 1 consists of a seat pan board and backrest boards. The lower backrest boards must be hinged in the region of the ischium humps (A) and the loin (B), the hinge (B) being adjustable in height.

2. Method of determining the seat reference point (S) U.K.

The seat reference point (S) must be obtained by using the device illustrated in Figures 1 and 2, which simulates loading by a human occupant. The device must be positioned on the seat. It must then be loaded with a force of 550 N at a point 50 mm in front of hinge (A) and two parts of the backrest lightly pressed tangentially against the padded backrest.

If it is not possible to determine definite tangents to each area of the padded backrest (below and above the lumbar region) the following procedure must be adopted:

(a)

where there is no possibility of defining the tangent to the lowest possible area, the lower part of the backrest board in a vertical position must be lightly pressed against the padded backrest;

(b)

where there is no possibility of defining the tangent to the highest possible area, if the lower part of the backrest board is vertical, the hinge must be fixed at a height of 230 mm above the seat reference point (S). The two parts of the backrest board in a vertical position must then be lightly pressed tangentially against the padded backrest.

[F4 2.1. Positioning of the seat U.K.

For the purposes of Annex XV, the seat reference point (S) shall be obtained with the seat set in the rearmost longitudinal position and at the mid-point of the height adjustment range. Seats having a suspension system, whether or not adjustable according to the driver's weight, must be set at the mid-point of the suspension travel.]

Figure 1

Device for determining the seat reference point (S)

Figure 2

Device in position

ANNEX XV

Requirements applying to operating space and to access to the driving position U.K.

1. Definition U.K.

For the purposes of this Annex ‘reference plane’ means the plane parallel to the median longitudinal plane of the tractor passing through the Seat Reference Point (S).

2. Operating space U.K.

2.1. For all tractors, with the exception of those that fall within categories T2/C2, T4.1/C4.1 and T4.3/C4.3 and those where the driver’s Seat Reference Point (S) is more than 300 mm from the median longitudinal plane of the tractor, the width of the operating space must be at least 900 mm, from 400 to 900 mm above the seat reference point (S) and over a length of 450 mm forward of that point (see Figures 1 and 3). U.K.

For tractors of categories T2/C2 and T4.1/C4.1, the operating space must comply with the minimum dimensions of Figure 7.

For tractors of category T4.3/C4.3 and those where the driver’s Seat Reference Point (S) is more than 300 mm from the median longitudinal plane of the tractor, the operating space must, over the zone extending to 450 mm in front of the seat reference point (S), have at a height of 400 mm above the seat reference point (S), a total width of at least 700 mm, and at a height of 900 mm above the seat reference point (S), a total width of at least 600 mm.

2.2. Vehicle parts and accessories must not hamper the driver when driving the tractor. U.K.

2.3. For all positions of the steering column and the steering wheel, with the exception of those intended solely for entry and exit, the clearance between the base of the steering wheel and the fixed parts of the tractor must be at least 50 mm, except for tractors of categories T2/C2 and T4.1/C4.1 for which must be at least 30 mm; in all other directions this clearance must be at least 80 mm from the rim of the steering wheel, as measured from outside the area occupied by the steering wheel (see Figure 2), except for tractors of categories T2/C2 and T4.1/C4.1 for which must be at least 50 mm,. U.K.

2.4. For all tractors, except those of categories T2/C2 and T4.1/C4.1, the rear wall of the cab from 300 to 900 mm above the Seat Reference Point (S) must be a minimum of 150 mm behind a vertical plane which is perpendicular to the reference plane and passes through the reference point (see Figures 2 and 3). U.K.

2.4.1. This wall must have a width of at least 300 mm on either side of the seat reference plane (see Figure 3). U.K.

2.5. The manual control devices must be located in relation to one another and to the other parts of the tractor so that no danger of injury to the operator's hands arises from their operation. U.K.

2.5.1. Hand-operated control devices shall have minimum clearances in accordance with paragraph 4.5.3 of ISO 4254-1:2013. This requirement does not apply to fingertip operation control devices, such as push-buttons or electric switches. U.K.

2.5.2. Alternative locations for the control devices which achieve equally satisfactory safety standards are acceptable. U.K.

2.6. For all tractors, except those of categories T2/C2 and T4.1/C4.1, no rigid point on the roof must be less than 1 050 mm from the seat reference point (S) in a section situated forward of a vertical plane passing through the reference point and perpendicular to the reference plane (see Figure 2). The padding may extend downwards to 1 000 mm above the Seat Reference Point (S). U.K.

2.6.1. The radius of curvature of the surface between the rear panel of the cab and the roof of the cab may extend up to a maximum of 150 mm. U.K.

3. Access to the driving position (means of entry and exit) U.K.

3.1. It must be possible to use the means of entry and exit without danger. Wheel hubs, hub caps or wheel rims are not acceptable as steps or rungs. U.K.

3.2. The points of access to the driving position and to the passenger seat must be free of any parts liable to cause injury. Where an obstruction such as a clutch pedal is present, a step or footrest must be provided to ensure safe access to the driving position. U.K.

3.3. Steps, integral foot recesses and rungs. U.K.

3.3.1. Steps, integral foot recesses and rungs must have the following dimensions: U.K.

depth clearance:	150 mm minimum, (except for tractors of categories T2/C2 and T4.1/C4.1)
width clearance:	250 mm minimum, (Values lower than this minimum width are authorised only where justified as being necessary on technical grounds. Where this is the case, the aim must be to achieve the greatest possible width clearance. It must not, however, be less than 150 mm.)
height clearance:	120 mm minimum,
distance between surface of two steps:	300 mm maximum (see Figure 4).

[F1 3.3.2. The upper step or rung must be easily identifiable and accessible for a person leaving the vehicle. The vertical distance between successive steps or rungs shall be equal. However, a tolerance of 20 mm is allowed.] U.K.

3.3.3. The lowest foothold must not be more than 550 mm above the ground when the tractor is fitted with the largest tyre size recommended by the manufacturer (see Figure 4). U.K.

3.3.4. Steps or rungs must be designed and constructed in such a way that feet will not slip on them (e.g. steel or mesh grilles). U.K.

3.3.5. Alternative requirements for vehicles of category C U.K.

3.3.5.1. In the case of step(s) integrated in the track frame (see Figure 5), it can be retracted under an angle of ≤ 15°, if at least the basic dimension of riser height dimension B, and the tread depth F1 according to the Table 1 of EN ISO 2867:2006 is met, measured from the outer edges of the track shoes. U.K.

3.3.5.2. In addition, taken into account the limited view during egress, the step width shall be at least as wide as the minimum set out in Table 1 of EN ISO 2867:2006. U.K.

3.3.5.3. For vehicles of category C with steel tracks with the access step installed on the frame of the track-rollers, the outer edge of the step does not need to extend beyond the vertical plane formed by the external edge of the track shoes, but shall be as close as practically possible. U.K.

3.4. Handrails/handholds U.K.

3.4.1. Handrails or handholds shall be provided and designed so that the operator can maintain three-point contact support while accessing or exiting the operator’s station. The lower end of the handrail/handhold shall be located no higher than 1 500 mm from the ground surface. A minimum clearance of 30 mm shall be provided for hand clearance between the handrail/handhold and the adjacent parts (except at attaching points). U.K.

3.4.2. A handrail or handhold shall be provided above the uppermost step/rung of the boarding means at a height between 850 mm and 1 100 mm. The handhold on tractors shall be at least 110 mm long. U.K.

4. Access to other positions than the driving position U.K.

4.1. It must be possible to use the accesses to other positions (e.g. for adjusting the right mirror or cleaning actions) without danger. Wheel hubs, hub caps or wheel rims are not acceptable as steps or rungs. Handrails or handholds shall be provided and designed so that the operator can maintain three-point contact support at all times. U.K.

4.2. Steps, integral foot recesses and rungs must have the following dimensions: U.K.

depth clearance:	150 mm minimum,
width clearance:	250 mm minimum, (Values lower than this minimum width are authorised only where justified as being necessary on technical grounds. Where this is the case, the aim must be to achieve the greatest possible width clearance. It must not, however, be less than 150 mm.)
[F3 height clearance:	125 mm minimum,]
distance between surface of two steps:	300 mm maximum (see Figure 6).

4.2.1. Such boarding means shall comprise a series of successive steps as shown in Figure 6: each step shall have an anti-slip surface, a lateral boundary on each side and have to be designed so that dirt and snow accumulation in normal working conditions can be largely prevented. [F3 The vertical and horizontal distance between consecutive steps shall not be less than 150 mm; however, a tolerance of 20 mm between stages is allowed.] U.K.

5. Doors and windows U.K.

5.1. The devices operating the doors and windows must be designed and installed in such a way that they neither constitute a danger to the driver nor impede him while driving. U.K.

5.2. The opening angle of the door must permit entry and exit without danger. U.K.

5.3. The access doors to the cabin must have a minimum width of 250 mm at floor height. U.K.

5.4. Ventilation windows, if any, must be easily adjustable. U.K.

6. Emergency exits U.K.

6.1. Number of emergency exits U.K.

6.1.1. Single-door cabs must have two extra exits constituting emergency exits. U.K.

6.1.2. Two-door cabs must have one extra exit constituting an emergency exit, except for tractors of categories T2/C2 and T4.1/C4.1. U.K.

6.2. Each of the exits must be on a different cab wall (the term ‘wall’ may include the roof). Windscreens and side, rear and roof windows may be regarded as emergency exits if provision is made to open them or to move them quickly from inside the cab. U.K.

6.3. For all tractors, except those of categories T2/C2 and T4.1/C4.1, emergency exits must have the minimum dimensions required to circumscribe an ellipse with a minor axis of 440 mm and a major axis of 640 mm. U.K.

Tractors of categories T2/C2 and T4.1/C4.1 fitted with a cab that do not respect the minimum dimensions of the emergency exits indicated in the previous paragraph shall be provided with at least two doors.

6.4. Any window of sufficient size may be designated as an emergency exit if they are made of breakable glass and can be broken with a tool provided in the cab for that purpose. Glass referred to in Appendices 3, 4, 5, 6, 7, 8 and 9 of Annex I to UNECE Regulation No 43 is considered to be not breakable glass for the purpose of this Annex. U.K.

6.5. The surrounds of emergency exits shall not present any danger. When to evacuate the cabin is required to overcome differences in height exceeding 1 000 mm means to facilitate the evacuation shall be provided. For this purpose, when the exit is from the rear side, the supporting points offered by the arms of the three point lifting mechanism or by the PTO guard shall be considered sufficient if they have a resistance to vertical loads of at least 1 200 N. U.K.

6.6. Emergency exits must be marked with pictograms containing instructions for the operator in accordance with Annex XXVI. U.K.

Appendix 1

Figures U.K.

Figure 1

(Dimensions in millimetres)

Figure 2

(Dimensions in millimetres)

Figure 3

(Dimensions in millimetres)

Figure 4

Figure 5

Dimensions of access step integrated in the track frame of track-laid tractors (source: EN ISO 2867:2006)

[F3 Figure 6 (Source:EN ISO 4254-1 No. 4.7) U.K.

]

Figure 7

Minimum dimensions of the operating space in tractors of categories T2/C2 and T4.1/C4.1

ANNEX XVI

Requirements applying to power take-offs U.K.

1. Requirements for rear power take-offs U.K.

The specifications of ISO 500-1:2014 and ISO 500-2:2004 apply to tractors with rear power take-offs according to Table 1.

Table 1

Application of standards for rear power take-offs of the different tractor categories

a In the standard ISO 500-1:2014, the last sentence in section 6.2 is not applicable.
b For the purposes of this Annex, this standard also applies to tractors with a power take-off, the power of which exceeds 20 kW, measured in accordance with ISO 789-1:1990
c [ F5 ]
X Standard applicable.
- - Standard not applicable.
X(1) Standard applicable for tractors with a track width of more than 1 150 mm.
X(2) Standard applicable for tractors with a track width of 1 150 mm or less.
Standard applicable	T1C1	T2C2	T3C3	T4.1C4.1	T4.2C4.2	T4.3C4.3
[F3 ISO 500-1:2014 a	X	- -	X (1)	X (1)	X (1)	X]
ISO 500-2:2004b	- -	X	X(2)	X(2)	- -	- -

2. Requirements for front power take-offs U.K.

The specifications of ISO 8759-1:1998, with the exception of its clause 4.2, apply to tractors of all T and C categories which are equipped with front power take-offs as specified in this standard.

Textual Amendments

F5 Deleted by Commission Delegated Regulation (EU) 2016/1788 of 14 July 2016 amending Regulation (EU) No 167/2013 of the European Parliament and of the Council as regards the list of requirements for vehicle EU type-approval, and amending and correcting Commission Delegated Regulations (EU) No 1322/2014, (EU) 2015/96, (EU) 2015/68 and (EU) 2015/208 with regard to vehicle construction and general requirements, to environmental and propulsion unit performance requirements, to vehicle braking requirements and to vehicle functional safety requirements (Text with EEA relevance).

ANNEX XVII

Requirements applying to the protection of drive components U.K.

1. Definitions U.K.

For the purposes of this Annex the following definitions shall apply:

1.1.

‘Dangerous part’ means any point which, owing to the arrangements or design of the fixed or movable part of a tractor, involves a risk of injury. The dangerous parts are, in particular, pinching, shearing, cutting, piercing, penetrating, snatching and attack points.

1.1.1.

‘Pinching point’ means any dangerous point where parts move in relation to each other or to fixed parts in such a way as may cause persons or certain parts of their bodies to be pinched.

1.1.2.

‘Shear point’ means any dangerous point where parts move along each other or along other parts in such a way as may cause persons or certain parts of their bodies to be pinched or shorn.

1.1.3.

‘Cutting, piercing or penetration point’ means any dangerous point where parts, either moving or fixed, sharp-edged, pointed or blunt, may injure persons or certain parts of their bodies.

1.1.4.

‘Snatching point’ means any dangerous point where sharp-edged projections, teeth, pins, screws and bolts, grease nipples, shafts, shaft ends and other parts move in such a way that persons, certain parts of their bodies or clothing may be snatched and pulled along.

1.1.5.

‘Attack point’ means any dangerous point whose parts, by moving, narrow an aperture in which persons, certain parts of their bodies or clothes may be caught.

1.2.

‘Reach’ means the maximum distance which can be reached by persons or certain parts of their bodies upwards, downwards, inwards, above, around or across without the aid of any object (Figure 1).

1.3.

‘Safety distance’ means the distance corresponding to the reach or to the body dimension plus a safety margin (Figure 1).

1.4.

‘Normal operation’ means the use of the tractor for the purpose intended by the manufacturer and by an operator familiar with the tractor characteristics and complying with the information for operation, service and safe practices, as specified by the manufacturer in the operator's manual and by signs on the tractor.

1.5.

‘Clearance zone around the drive wheels’ means the space which must remain clear around the tyres of the drive wheels in relation to the adjacent parts of the vehicle.

1.6.

‘seat Index Point (SIP)’ means the point determined in accordance with ISO 5353:1995.

2. General requirements U.K.

2.1. Drive components, projections and wheels on tractors must be designed, fitted and protected in such a way as to prevent accidents to persons under normal conditions of use. U.K.

2.2. The requirements of section 2 are regarded as being fulfilled if the requirements set out in section 3 have been complied with. Solutions other than those described in section 3 are authorised if the manufacturer provides proof that they are at least equivalent to the requirements of section 3. U.K.

2.3. Protective devices must be firmly attached to the tractor. U.K.

2.4. Lids and hoods which could cause injury if they are slammed shut must be made in such a way as to preclude their shutting accidentally (e.g. by means of safety devices or suitable mounting or design). U.K.

2.5. A single protective device may protect a number of dangerous points. However, if adjustment, maintenance or interference suppression devices - which can be actuated only when the engine is running - are fitted beneath a single protective device, then further protective devices must be fitted. U.K.

[F3 2.6. The following securing devices shall be firmly attached either to the tractor mounting or to the protective device: U.K.

(a)

devices to secure quick-release mounting components;

(b)

components of protective devices which open without the aid of tools.]

3. Safety distances for avoiding contact with dangerous parts U.K.

3.1. The safety distance is measured from those points which may be reached to actuate, service and inspect the tractor, and also from ground level in accordance with the operator's manual. In determining the safety distances the basic principle is that the tractor is in the state for which it has been designed and that no means has been used in order to reach the dangerous part. U.K.

Safety distances are set out in points 3.2.1 to 3.2.5. In certain specific areas or for certain specific component parts an appropriate safety level is provided if the tractor corresponds to the requirements set out in points 3.2.6 to 3.2.14.

3.2. Protection of dangerous points U.K.

3.2.1. Upwards U.K.

The upward safety margin is 2 500 mm (see Figure 1) in the case of persons standing upright.

Figure 1

3.2.2. Downwards, above U.K.

The safety margin for reaching above a barrier is:

a

=

from ground level up to the dangerous point;

b

=

height of barrier or protective device;

c

=

horizontal distance between dangerous point and barrier (see Figure 2).

Figure 2

When reaching both downwards and above the safety distances set out in Table 1 must be maintained.

Table 1

(in mm)
a: Distance from ground of dangerous point	Height between barrier and protective device b
	2 400	2 200	2 000	1 800	1 600	1 400	1 200	1 000
	Horizontal distance c from dangerous point
2 400	—	100	100	100	100	100	100	100
2 200	—	250	350	400	500	500	600	600
2 000	—	—	350	500	600	700	900	1 100
1 800	—	—	—	600	900	900	1 000	1 100
1 600	—	—	—	500	900	900	1 000	1 300
1 400	—	—	—	100	800	900	1 000	1 300
1 200	—	—	—	—	500	900	1 000	1 400
1 000	—	—	—	—	300	900	1 000	1 400
800	—	—	—	—	—	600	900	1 300
600	—	—	—	—	—	—	500	1 200
400	—	—	—	—	—	—	300	1 200
200	—	—	—	—	—	—	200	1 100

3.2.3. Reach around U.K.

The safety margin shown in Table 2 below must, at the minimum, be maintained if the part of the body concerned is not to reach a dangerous point. In applying the safety margin it is assumed that the main body joint concerned is pushed firmly against the edge of the protective device. The safety margins are not considered to have been maintained until one is satisfied that part of the body may quite definitely not advance or penetrate further.

Table 2

Part of the body	Safety distance	Figure
Hand From the fist knuckle to the fingertips	≥ 120 mm
Hand From the wrist to the fingertips	≥ 230 mm

Limb	Safety distance	Illustration
Arm From the elbow to the fingertips	≥ 550 mm
Arm From the shoulder to the fingertips	≥ 850 mm

3.2.4. Penetration and reach across U.K.

If penetration is possible into or across openings and up to dangerous parts, the minimum safety distances set out in Tables 3 and 4 must be maintained.

Parts which move in relation to one another or moving parts set alongside fixed parts are not regarded as risk factors provided they are no more than 8 mm apart.

In addition to these requirements, vehicles equipped with a straddled seat and handlebars must comply with the requirements of EN 15997:2011 on moving parts.

Table 3

Safety distances for elongated and parallel openings a is the smaller dimension of the aperture. b is the safety distance from danger point.
Fingertip	Finger		Hand to ball of thumb	Arm to armpit	—
4 < a ≤ 8	8 < a ≤ 12	12 < a ≤ 20	20 < a ≤ 30	30 < a ≤ 135 maximum	> 135
b ≥ 15	b ≥ 80	b ≥ 120	b ≥ 200	b ≥ 850	—

Table 4

Safety distances for square or circular apertures a is the aperture/diameter or length of side. b is the safety distance from danger point.
Fingertip	Finger		Hand to thumb root	Arm to armpit	—
4 < a ≤ 8	8 < a ≤ 12	12 < a ≤ 25	25 < a ≤ 40	40 < a ≤ 250 maximum	250
b ≥ 15	b ≥ 80	b ≥ 120	b ≥ 200	b ≥ 850	—

3.2.5. Safety distances at pinching points U.K.

A pinching point is not considered dangerous for the part of the body shown if the safety distances are not less than those set out in Table 5, and if it is ensured that the adjacent, wider part of the body cannot be introduced.

Table 5

Limb	Body	Leg	Foot	Arm	Hand, joint, fist	Finger
Safety distances	500	180	120		100	25
Illustration

3.2.6. Control devices U.K.

The gap between two pedals and the holes through which control devices pass are not regarded as being pinching or shearing points.

3.2.7. Rear three-point coupling U.K.

3.2.7.1. Behind a plane passing through the median plane of the pivot points of the lifting rods in a three-point coupling system a minimum safety margin of 25 mm must be maintained between the moving parts for each point or of the lifting device's travel — but not for the extreme upper and lower positions 0,1 n, together with a distance of 25 mm or a minimum angle of 30° for the parts in shear which cause a change in angularity (see Figure 3). Travel n′, reduced by 0,1 n at both its upper and lower ends is defined as follows (see Figure 4). Where the lower links are directly activated by the lifting mechanism, the reference plane is determined by the median transverse vertical plane of those links. U.K.

Figure 3

Legend: U.K.

A

=

Lift arm

B

=

Lower link

C

=

Lift rod

D

=

Tractor chassis

E

=

Plane passing through the axes of the lift rod pivot points

F

=

Clearance envelope

Figure 4

3.2.7.2. For travel n of the hydraulic lifting unit, lower position A of the coupling point of the lower link is limited by dimension ‘14’ in accordance with the requirements laid down in standard ISO 730:2009, while upper position B is limited by the maximum hydraulic travel. Travel n′ corresponds to travel n reduced upwards and downwards by 0,1 n, and constitutes the vertical distance between A′ and B′. U.K.

3.2.7.3. Moreover, within travel n′ a minimum safety margin of 25 mm in relation to the adjacent parts must be maintained around the profile of the lifting rods. U.K.

3.2.7.4. If, in the case of a three-point coupling, coupling devices are used which do not require the presence of an operator between the tractor and the implement carried (for example, in the case of a quick coupling), the provisions of point 3.2.7.3 do not apply. U.K.

3.2.7.5. The operating manual should contain specific information on the dangerous points located at the front of the plane defined in the first sentence of point 3.2.7.1. U.K.

3.2.8. Front three-point coupling U.K.

3.2.8.1. At each point of the lifting unit’s travel n — but not for the extreme upper and lower reaches 0,1 n — a minimum safety margin of 25 mm must be maintained between the moving parts together with a minimum angle of 30° or a safety margin of 25 mm in the case of the change of angularity caused by the parts in shear with each other. Travel n′ reduced by 0,1 n at both its upper and lower ends, is defined as follows (see also Figure 4). U.K.

3.2.8.2. For travel n of the hydraulic lifting unit, the extreme lower position A of the coupling point of the lower link is limited by dimension ‘14’ in accordance with ISO Standard 8759, Part 2, of March 1998 while extreme upper position B is limited by the maximum hydraulic travel. Travel n′ is reduced upwards and downwards by 0,1 n and the vertical distance between A′ and B′. U.K.

3.2.8.3. If, for the lower links of a front three-point coupling, coupling devices (such as a rapid-action coupling) are used which do not require the presence of a person between the tractor and the implement attached during coupling, the requirements under 3.2.8.1 do not apply within the reach of a radius of 250 mm from the points at which the lower links are coupled to the tractor. However, a minimum safety margin of 25 mm from neighbouring parts within the defined travel n′ must in any case be maintained around the outside of the travel rods/cylinders. U.K.

3.2.9. Driving seat and environment U.K.

When he is in a sitting position, all pinching or shearing points must be out of range of the driver's hands or feet. This requirement is considered to have been met if the following conditions are fulfilled:

3.2.9.1. The driver's seat is at the mid-point in its longitudinal and vertical adjustment range. The driver's reach limit is divided into zones A and B. A central spherical point of these zones is 60 mm in front of and 580 mm above the Seat Index Point (SIP) (see Figure 5). Zone A consists of a sphere having a radius of 550 mm while zone B is located between that sphere and a sphere having a radius of 1 000 mm. U.K.

Figure 5

3.2.9.2. A safety distance of 120 mm in zone A and 25 mm in zone B is maintained near the pinching and shearing points, whilst a minimum angle of 30° is maintained in the case of shearing parts causing a change in angularity. U.K.

3.2.9.3. In zone A, only the pinching and shearing points caused by parts set in motion by an outside energy source must be taken into account. U.K.

3.2.9.4. If a dangerous point is due to the presence of structural parts adjacent to the seat, a safety distance of a least 25 mm is maintained between that structural part and the seat. There is no dangerous point between the seat backrest and the adjacent structural parts located behind that backrest if the adjacent structural parts are smooth and the seat backrest itself is rounded in the surrounding area and has no sharp points. U.K.

3.2.9.5. Gearboxes and other vehicle parts and accessories generating noise, vibrations and/or heat shall be isolated from the driving seat. U.K.

3.2.10. Passenger seat (if any) U.K.

3.2.10.1. If parts may constitute a danger for the feet, provision must be made for protective devices within a hemispherical radius of 800 mm starting from the forward edge of the seat cushion and pointing downwards. U.K.

3.2.10.2. As described in point 3.2.9 (see Figure 6) the dangerous points in zones A and B must be protected within a sphere whose centre is 670 mm above the centre of the front edge of the passenger seat. U.K.

Figure 6

3.2.11. Tractors of categories T2/C2, T4.1/C4.1 and T4.3/C4.3 U.K.

3.2.11.1. In the case of tractors of categories T2/C2, T4.1/C4.1 and T4.3/C4.3, the requirements of point 3.2.9 shall not apply to the zone situated below a plane inclined at 45° to the rear and transverse to the direction of travel and passing through a point located 230 mm behind the Seat Index Point (SIP) (see Figure 7). If there are any dangerous points in this zone, corresponding warnings must be affixed to the tractor. U.K.

Figure 7

3.2.12. Steering and swing axle U.K.

Parts moving in relation to each other or to fixed parts must be protected if they lie within the zone defined in points 3.2.9 and 3.2.10.

When articulated steering is fitted, there must be indelible and clear markings within the articulation range on both sides of the tractor, indicating by means of an illustrative sign or in words that remaining within the unprotected range of articulation is not permitted. The corresponding indications must be included in the operating manual.

3.2.13. Transmission shafts fixed on the tractor U.K.

Transmission shafts (for example, for four-wheel drive) which can only rotate while the tractor is in motion must be protected if they are located within the zone defined in points 3.2.9 and 3.2.10.

3.2.14. Clearance zone around the drive wheels U.K.

3.2.14.1. The clearance zone around the drive wheels on tractors without an enclosed cab, when fitted with largest-size tyres, must correspond to the dimensions set out in the following Figure 8 and Table 6. U.K.

Figure 8

Table 6

Categories T1/C1, T3/C3 and T4.2/C4.2		Categories T2/C2, T4.1/C4.1 and T4.3/C4.3
a	h	a	h
mm	mm	mm	mm
40	60	15	30

3.2.14.2. A clearance zone around the drive wheels smaller than that illustrated in Figure 8 and Table 6 is permissible in addition to the zones referred to in points 3.2.9 and 3.2.10 in the case of tractors of categories T2/C2, T4.1/C4.1 and T4.3/C4.3, where wheel guards are also used to scrape off earth stuck to the wheels. U.K.

4. Strength requirements for protective devices U.K.

4.1. Protective devices, and in particular those with a vertical height from the ground of up to 550 mm, whose use as access steps during normal use cannot be prevented, shall be designed so that they can withstand a vertical load of 1 200 N. Conformance with this requirement shall be checked using the test given in Annex C of ISO 4254-1:2013 or an equivalent method which fulfils the same test acceptance criteria. U.K.

5. Engine hood U.K.

5.1. The engine hinged hood shall be opened only with a tool (release mechanism located in the cabin is acceptable) and with a self-locking mechanism when closed. U.K.

5.2. Side hoods shall be mounted as: U.K.

5.2.1.

Fixed guards held in place by welding or screws and bolts and which are openable only by means of a tool. The fixed guards must not remain in place if the fixing elements are missing;

or

5.2.2.

Hinged guards that can be opened only through the use of a tool and self-locked when closed;

or

5.2.3.

Guards with its opening linked to the opening of the hood, and that can be opened only through the use of a tool.

5.3. Additional means of protection must be installed if beneath the engine hood there are adjustment, maintenance or interference suppression systems that can be handled only while the engine is running. U.K.

5.4. Mechanical supports or hydraulic locking devices (e.g. struts or gas springs) shall be provided to prevent the engine hoods from falling when opened. U.K.

5.5. Devices that facilitate the safe handling of the hood (e.g. handles, ropes or parts of the hood itself appropriately shaped to grip it better) without risk of crushing, impact or excessive effort shall be provided. U.K.

5.6. The engine hood openings shall be identified with pictograms in accordance with Annex XXVI, and instructions shall be provided in the operator's manual. U.K.

6. Hot surfaces U.K.

6.1. Hot surfaces which can be reached by the operator during normal operation of the tractor shall be covered or insulated. This applies to hot surfaces which are near to steps, handrails, handholds, integral tractor parts used as boarding means and which may be inadvertently touched and parts directly accessible from the driver's seat (e.g. gearbox-transmission in tractors not equipped with platform). U.K.

6.2. This requirement shall be satisfied by properly positioning fixed guards or by safety distances to segregate or thermally isolate the hot surfaces of the vehicle. U.K.

6.3. Contact with other not particularly dangerous hot surfaces or those that may be dangerous only in particular situations of use which go beyond the ordinary shall be identified with pictograms in accordance with Annex XXVI and identified in the operator's manual. U.K.

6.4. In addition, vehicles equipped with a straddled seat and handlebars must comply with the requirements of EN 15997:2011 concerning hot surfaces. U.K.

ANNEX XVIII

Requirements applying to seat-belt anchorages U.K.

A. GENERAL REQUIREMENTS U.K.

1.1. When a vehicle of category T or C is fitted with ROPS, it shall be fitted with seat-belt anchorages complying with the standard ISO 3776-1:2006. U.K.

1.2. In addition, the seat-belt anchorages shall comply with the requirements laid down in one of the points B, C or D. U.K.

B. ADDITIONAL REQUIREMENTS APPLYING TO SEAT-BELT ANCHORAGES (ALTERNATIVE TO THOSE SET OUT IN POINTS C AND D)⁽¹⁾ U.K.

1. Scope U.K.

1.1. Seat belts are one of the operator restraint systems used for securing the driver in motor vehicles. U.K.

This recommended procedure provides minimum performance and tests requirements for anchorage for agricultural and forestry tractors.

It applies to the anchorage of pelvic restraint systems.

2. Explanation of terms used in the performance testing U.K.

2.1. The seat belt assembly is any strap or belt device fastened across the lap or pelvic girdle area designed to secure a person in a machine. U.K.

2.2. The extension belt is intended as any strap, belt, or similar device that aids in the transfer of seat belt loads. U.K.

2.3. The anchorage is intended as the point where the seat belt assembly is mechanically attached to the seat system or tractor. U.K.

2.4. The seat mounting is intended as all intermediary fittings (such as slides, etc.) used to secure the seat to the appropriate part of the tractor. U.K.

2.5. The Operator Restraint System is intended as the total system composed of seat belt assembly, seat system, anchorages and extension which transfers the seat belt load to the tractor. U.K.

2.6. Applicable Seat Components comprise all components of the seat whose mass could contribute to loading of the seat mounting (to the vehicle structure) during a roll-over event. U.K.

3. Test procedure U.K.

The procedure is applicable to a seat belt anchorage system provided for a driver or a person in addition to the driver carried by the tractor.

Only static tests for anchorages are given in this procedure

If, for a given protective structure, a manufacturer provides more than one seat with identical components which transfer the load from the seatbelt anchorage, to the seat mounting on the ROPS floor or tractor chassis, the Testing Station is authorised to test only one configuration, corresponding to the heaviest seat (see also below).

The seat shall be in position during the tests and fixed to the mounting point on the tractor using all intermediary fittings (such as suspension, slides, etc.) specified for the complete tractor. No additional non-standard fittings contributing to the strength of the construction may be used.

The worst case loading scenario for seat belt anchorage performance testing should be identified with consideration to the following points:

• If the masses of alternative seats are comparable, those featuring seat belt anchorages which transfer loading through the seat structure (e.g. via the suspension system and/or adjustment slides), will be required to withstand much higher test loading. They are therefore likely to represent the worst case;

• If the applied loading will pass through the seat mountings to the vehicle chassis, the seat should be adjusted longitudinally to achieve the minimum amount of overlap of the mounting slides / rails. This will usually be when the seat is in the fully-rearward position but, if certain vehicle installations limit seat rearward travel, the fully-forward seat position may provide the worst case loading position. Observation of the amount of seat movement and mounting slide / rail overlap is required.

The anchorages shall be capable of withstanding the loads applied to the seat belt system using a device as shown in Figure 1. The seat belt anchorages shall be capable of withstanding these test loads applied with the seat adjusted in the worst position of the longitudinal adjustment to ensure that the test condition is met. The test loads shall be applied with the seat in the mid-position of the longitudinal adjustment if a worst position among the possible seat adjustments is not recognised by the testing station. For a suspended seat, the seat shall be set to the midpoint of the suspension travel, unless this is contradictory to a clearly stated instruction by the seat manufacturer. Where special instructions exist for the seat setting, these shall be observed and specified in the report.

After the load is applied to the seat system, the load application device shall not be repositioned to compensate for any changes that may occur to the load application angle.

3.1. Forward loading U.K.

A tensile force shall be applied in a forward and upward direction at an angle of 45° ± 2° to the horizontal, as shown in Figure 2. The anchorages shall be capable of withstanding a force of 4 450 N. In the event that the force applied to the seat belt assembly is transferred to the vehicle chassis by means of the seat, the seat mounting shall be capable of withstanding this force plus an additional force equal to four times the force of gravity on the mass of all applicable seat components, applied 45° ± 2° to the horizontal in a forward and upward direction, as shown in Figure 2.

3.2. Rearward loading U.K.

A tensile force shall be applied in a rearward and upward direction at an angle of 45° ± 2° to the horizontal, as shown in Figure 3. The anchorages shall be capable of withstanding a force of 2 225 N. In the event that the force applied to the seat belt assembly is transferred to the vehicle chassis by means of the seat, the seat mounting shall be capable of withstanding this force plus an additional force equal to two times the force of gravity on the mass of all applicable seat components, applied 45° ± 2° to the horizontal in a rearward and upward direction, as shown in Figure 3.

Both tensile forces shall be equally divided between the anchorages.

3.3. Seatbelt buckle release force (if required by the manufacturer) U.K.

The seat belt buckle shall open with a maximum force of 140 N following the load applications. This requirement is fulfilled for seat belt assemblies that satisfy the requirements of UNECE Regulation No 16 or Council Directive 77/541/EEC(10).

[F3 3.4. Test result U.K.

Condition of acceptance U.K.

Permanent deformation of any system component and anchorage area is acceptable under the action of the forces specified in points 3.1 and 3.2. However, there shall be no failure allowing release of the seat belt system, seat assembly, or the seat adjustment locking mechanism.

The seat adjuster or locking device need not be operable after application of the test load.]

Figure 1

The load application device

Note: The dimensions not shown are optional to satisfy the test facility and do not influence the test results. U.K.

Figure 2

Load application in the upward and forward direction

Figure 3

Load application in the upward and rearward direction

C. ADDITIONAL REQUIREMENTS APPLYING TO SEAT-BELT ANCHORAGES (ALTERNATIVE TO THOSE SET OUT IN POINTS B AND D) U.K.

Vehicles of categories T and C fitted with seat belt anchorages complying with the requirements laid down in standard ISO 3776-2:2013 shall be deemed to be complying with this Annex.

D. ADDITIONAL REQUIREMENTS APPLYING TO SEAT-BELT ANCHORAGES (ALTERNATIVE TO THOSE SET OUT IN POINTS B AND C) U.K.

Vehicles of categories T and C, fitted with seat belt anchorages tested and granted a test report on the basis of UNECE Regulation No 14, shall be deemed to be complying with this Annex.

Explanatory notes to Annex XVIII U.K.

^{[F1 (1)} Unless the numbering, the requirements set out in point B are identical with the text of the OECD standard Code for the official testing of for the official testing of protective structures on agricultural and forestry tractors (static test), OECD standard Code 4, Edition 2017 of February 2017.] U.K.

ANNEX XIX

Requirements applying to safety belts U.K.

1. When a vehicle of category T or C is fitted with roll-over protection structures, the vehicles shall be fitted with safety belts and shall comply with the requirements laid down in ISO 3776-3:2009. U.K.

2. As an alternative to the requirements set out in point 1, vehicles of category T or C fitted with roll-over protection structures, which have been tested and granted a test report on the basis of the UNECE Regulation No 16, as amended, shall be deemed to be complying with this Annex. U.K.

ANNEX XX

Requirements applying to the protection against penetrating objects U.K.

1. Vehicles of categories T and C equipped for forestry applications shall comply with the requirements for protection against penetrating objects laid down in ISO 8084:2003. U.K.

2. All other vehicles of categories T and C, if equipped with protection against penetrating objects, shall comply with the requirements of point 1 of UNECE Regulation No 43(11), Annex 14 on safety glazing. U.K.

ANNEX XXI

Requirements applying to exhaust systems U.K.

1. Definitions U.K.

For the purpose of this Annex, ‘exhaust system’ means the combination of the exhaust pipe, the expansion box and the exhaust silencer and pollution control device.

2. General requirements U.K.

2.1. The exhaust tailpipe must be positioned in such a way that the exhaust gases cannot penetrate inside the cab. U.K.

[F3 2.2. The parts of the exhaust pipe which can be reached by the operator during normal operation of the tractor, as described in point 6.1 of Annex XVII, must be protected by means of segregation, guards or grids, so as to avoid the possibility of accidental contact with hot surfaces.] U.K.

3. Tractors of categories T2/C2 and T4.1/C4.1 U.K.

For tractors of categories T2/C2 and T4.1/C4.1, the following requirements shall apply:

3.1.

In front of a reference plane which passes at right angles to the longitudinal axis of the vehicle and through the centre of the load-free pedal (clutch and/or service brake), very hot exhaust components must be protected if located within 300 mm in the upper zone (700 mm above ground level) and within 150 mm in the lower zone (see Figure 1). Laterally, the area to be protected is limited by the external outline of the tractor and the external outline of the exhaust system.

3.2.

Very hot exhaust system components passing beneath the entry step must be covered in their vertical projection or otherwise thermally protected.

Figure 1 (dimensions in mm) U.K.

ANNEX XXII

Requirements applying to the operator’s manual U.K.

1. The operator’s manual shall comply with the requirements set out in standard ISO 3600:1996, with the exception of section 4.3 (Machine identification). U.K.

2. In addition, the operator’s manual shall contain relevant information with regard to the following topics: U.K.

(a)

adjustment of the seat and suspension related to the ergonomic position of the operator with respect to the control devices and in order to minimise the risks from whole body vibration;

(b)

use and adjustment of the system for heating, ventilation and air-conditioning, if provided;

(c)

starting and stopping of the engine, including the principles of safe starting/stopping, involving use of handbrake, placing control devices in neutral and removing the key;

(d)

location and method of opening of emergency exits;

(e)

instructions for boarding and leaving the tractor;

(f)

the hazard area near to the pivot axis of articulated tractors;

(g)

use of special tools, if any are provided;

(h)

safe methods used for service and maintenance, including cleaning and working at height;

(i)

information about the interval of inspection of hydraulic hoses;

(j)

instructions about how to tow the tractor;

(k)

Instructions about the procedures for safe use of jacks and recommended jacking points;

(l)

hazards related to batteries and fuel tank;

(m)

prohibited use of the tractor, where overturning hazards exist with mention that the list is not exhaustive;

(n)

risks related to contact with hot surfaces, including residual risks such as filling of oil or coolant in hot engines or transmissions;

(o)

the level of protection of the falling objects protective structure, if applicable;

(p)

the level of protection of the operator's protection structure against penetrating objects, if applicable.

(q)

warning of the hazard of contact with overhead power lines

(r)

lightning strikes

(s)

regular cleaning of spray suppression valances

(t)

Tyre risks, including those associated with handling, repair, over inflation and installation of tyres.

(u)

stability degradation when using heavy attached implements at height

(v)

risks of overturning when travelling over sloping ground or rough ground

(w)

carrying of passengers only in approved passenger seats

(x)

use of the vehicle by appropriately trained operators only

(y)

information about safe loading of the vehicle.

(z)

information about towing: location and conditions for a safe process.

(aa)

information about the location and conditions of use of battery isolators (mechanical devices, electrical switches or electronic systems);

(ab)

use of safety belts and other types of operator seat restraints;

(ac)

for tractor with auto-guidance system, relevant instructions and safety information;

(ad)

for vehicles with foldable ROPS, information about save use of foldable ROPS, including: erecting/lowering operations and locking in the erected position.

(ae)

for vehicles with foldable ROPS, warning of consequences in the event of roll over with the ROPS folded;

(af)

for vehicles with foldable ROPS, description of the situations where might need to be folded (e.g. work within a building, orchard, hop or vineyard) and a reminder that the ROPS should be re-deployed on completion of the aforementioned tasks.

(ag)

[F3 information about the location of the greasing points, the safe greasing process and greasing intervals (daily/monthly/yearly);]

(ah)

information about the minimum requirements of the seats and their compatibility with the vehicle, in order to meet the vibration declaration set out in point 5.

3. Additional information concerning attaching, detaching and working with mounted machinery, trailers and interchangeable towed machinery U.K.

The operator’s manual shall include the following:

(a)

a warning to strictly follow the instructions outlined in the operator’s manual of the mounted or trailed machinery or trailer, and not to operate the combination tractor — machine or tractor — trailer unless all instructions have been followed;

(b)

a warning to stay clear from the area of the three-point linkage and of the pick-up hitch (where fitted) when controlling them;

(c)

a warning that mounted machinery must be lowered to the ground before leaving the tractor;

(d)

speed of the power take-off drive shafts in function of the mounted machinery or trailed vehicle;

(e)

a requirement to use only power take-off drive shafts with adequate guards and shields, and to fit a cap or cover if the shield is removed from the tractor;

(f)

information about hydraulic coupling devices and their function;

(g)

[F3 information about the maximum lift capacity of the three-point lifting mechanism and information on how to fix the three-point lifting mechanism laterally and vertically for road travel;]

(h)

information about the determination of the total mass, the axle loads, the tyre load carrying capacity and the necessary minimum ballasting;

(i)

information on intended use, installation, removal and maintenance of ballast weights

(j)

information about the available trailer braking systems and their compatibility with the trailed vehicles;

(k)

the maximum vertical load on the rear hitch, related to the rear tyre size and type of hitch;

(l)

[F3 information about using implements with power take-off drive shafts and that the technically possible inclination of the shafts depend on the shape and size of the master shield and clearance zone, including instructions and specific warnings relating to:

(i)

coupling and releasing the power take-offs,

(ii)

use of tools or machines coupled to the rear power take-off,

(iii)

if applicable, use of PTO type 3 with reduced dimensions and the consequences and risks caused by the reduced dimension of the protective guard;]

(m)

a repeat of the data on the statutory plate about maximum allowed trailed masses;

(n)

a warning to stay clear from the area between tractor and trailed vehicle.

(o)

For tractors with machinery mounted on them, the information required in the operator's manual of the machinery mounted in accordance with Directive 2006/42/EC.

[F1 4. Noise declaration U.K.

The operator's manual shall give the values of the noise at the operator's ear for each testing condition set out in Annex XIII, or alternatively the results of sound level test of OECD standard Code 5 in accordance with point 4 of its specimen test report.]

5. Vibration declaration U.K.

The operator’s manual shall give the value of the vibration level measured according to Annex XIV.

6. Operating modes U.K.

The operator’s manual shall include relevant information to enable the safe use of the tractor when it is used in the following operational situations:

(a)

work with front-end loader (risk of falling objects);

(b)

forestry application (risk of falling and/or penetrating objects);

(c)

work with crop sprayers mounted or trailed (risk of hazardous substances).

Particular attention shall be given in the operator’s manual to the use of the tractor in combination with the above equipment.

6.1. Front–end loader U.K.

6.1.1. The operator’s manual shall outline the hazards associated with front-end loader work, and explain how to avoid those hazards. U.K.

6.1.2. The operator’s manual shall indicate the fixation points on the body of the tractor where the front–end loader must be installed, together with the size and quality of the hardware to be used. If no such attachment points are foreseen, the operator’s manual shall prohibit the installation of a front–end loader. U.K.

6.1.3. Tractors fitted with programmable hydraulic sequencing functions shall provide information on how to connect the loader hydraulics so that this function is inoperable. U.K.

6.2. Forestry application U.K.

6.2.1. In case of use of an agricultural tractor in a forestry application, the identified hazards include the following: U.K.

(a)

toppling trees, for example in case a rear-mounted tree grab-crane is mounted at the rear of the tractor;

(b)

penetrating objects in the operator’s enclosure, especially in case a winch is mounted at the rear of the tractor;

(c)

falling objects, such as branches, logs or tree limbs;

(d)

steep slope or rough terrain working conditions.

6.2.2. The operator’s manual shall provide information about the following: U.K.

(a)

the existence of the hazards described in point 6.2.1;

(b)

any optional equipment that might be available to deal with those hazards;

(c)

fixation points on the tractor where protective structures can be fixed, together with the size and quality of the hardware to be used; when no means are foreseen to fit adequate protective structures, this shall be mentioned;

(d)

protective structures provided, which may consist of a frame protecting the operating station against toppling trees or (mesh) grids in front of the cab doors, roof and windows, etc.;

(e)

the FOPS level, if provided.

6.3. Crop sprayers (protection against hazardous substances): U.K.

6.3.1.

In case of use of an agricultural tractor with crop sprayers, the identified risks include the following:

(a)

risks encountered when spraying hazardous substances with a tractor fitted with a cabin or not;

(b)

risks related with entering or exiting the cabin when spraying hazardous substances;

(c)

risks related with the possible contamination of the operating space;

(d)

risks related with the cleaning of the cabin and the maintenance of the air filters,

6.3.2.

The operator's manual shall provide information about the following:

(a)

the existence of at least the risks described in point 6.3.1;

(b)

the protection level against hazardous substances provided by the cabin and the filter. In particular, the information required by standards EN 15695-1:2009 and EN 15695-2:2009/AC 2011 shall be indicated.

(c)

the selection and cleaning of the cabin air filter, as well as the replacement intervals required in order to provide a continuous protection. Including how to carry out such tasks safely and without risks to health;

(d)

maintaining the operating space uncontaminated, in particular when the tractor is used with personal protective equipment;

(e)

a reminder that a safe spraying operation requires compliance with the label of the hazardous substance and the instructions of the mounted or towed sprayer.

ANNEX XXIII

Requirements applying to control devices, including safety and reliability of control systems and emergency and automatic stop devices U.K.

LIST OF APPENDICES U.K.

[F3 Appendix Number	Appendix title
1	Figures
2	Complex electronic vehicle control systems that must comply with the provisions of Annex 6 of UNECE Regulation 79]

1. General requirements U.K.

1.1. Control devices must be easily accessible and must not constitute a danger to the operator, who must be able to actuate them without difficulty or risk; they must be so designed and laid out, or protected, as to preclude any inadvertent switching operation or any unintentional triggering of a movement or any other operation which might be dangerous. U.K.

1.2. [F3 Control devices must satisfy the corresponding applicable requirements set out in points 1.2.1 to 1.2.4 as regards the installation, location, operation and identification of control devices.] Other arrangements are permitted, should a manufacturer provide evidence that they have an effect at least equivalent to the requirements specified in this Annex. U.K.

[F1 1.2.1. Control devices such as steering wheels or steering levers, gear levers, control levers, cranks, pedals and switches shall be chosen, designed, constructed and arranged so that their actuating forces, displacement, locations, methods of operation and colour coding are in accordance with the standard ISO 15077:2008, including the provisions set out in Annexes A and C of that standard.] U.K.

1.2.2. Hand-operated control devices shall have minimum clearances in accordance with paragraph 4.5.3 of ISO 4254-1:2013. This requirement does not apply to fingertip operation control devices, such as push-buttons or electric switches. U.K.

1.2.3. Pedals shall have an appropriate size and space and be adequately spaced. Pedals shall have a slip-resistant surface and shall be easy to clean. U.K.

[F3 In order to avoid confusing the driver, the clutch, brake and accelerator pedals shall have the same function and arrangement as those of a motor vehicle, except for:

(a)

vehicles equipped with a straddle seat and handlebars, which are deemed to comply with the requirements of EN 15997:2011 for throttle control and manual clutch control,

(b)

vehicles of category T or C requiring a sustained activation of the right pedal to keep them in motion (e.g. vehicles fitted with a throttle pedal and a continuous variable transmission, or vehicles fitted with two pedals for forward and reverse direction and a hydrostatic transmission),

(c)

vehicles of category C with a maximum design speed of less than 15 km/h and fitted with hand-operated levers for controlling differential steering.]

1.2.4. For tractors without enclosed cab, the accessibility to internal control devices from the ground shall be limited; in particular, it shall be avoided the possibility of reaching the internal rear PTO control device, the rear three point lifting control device and any propulsion control device from inside the area determined by the vertical planes passing on the inner edge of the mud-guards (see Figure 3). U.K.

2. Identification of control devices U.K.

[F3 2.1. The symbols used for identification of control devices shall comply with the requirements set out in section 1 of Annex XXVI.] U.K.

2.2. Symbols other than those set out in Annex XXVI may be used for other purposes, provided that there is no danger of confusion with those shown in that Annex. U.K.

2.3. The symbols shall appear on or in the immediate proximity of the control devices. U.K.

2.4. The symbols shall stand out clearly against the background. U.K.

2.6. Control devices may be identified with pictograms in accordance with Annex XXVI and instructions of use shall be provided in the operator's manual. U.K.

3. Safe start of the engine U.K.

It must not be possible to start the engine if there is a risk that this might cause an uncontrolled movement of the tractor or of any implement or equipment connected to it.

3.1. The requirement set out in point 3 is deemed to be fulfilled if the engine cannot be started unless: U.K.

the clutch mechanism is disengaged and at least one of the following control devices of the vehicle transmission is in neutral position:

• the reverse shuttle control lever, or

• the gear change control lever, or

• the range selection control lever.

[F3 3.1.1. In the case of a vehicle fitted with hydrostatic transmission or a transmission with a hydrostatic component, the requirement laid down in point 3.1 that the engine cannot be started unless the clutch mechanism is disengaged shall be construed as that the engine cannot be started unless the transmission control is in neutral position or depressurized.] U.K.

[F3 3.2. In case that an operator standing on the ground (e.g. tractor's side), can start the engine and fulfil simultaneously the requirements guaranteeing the safe start of the engine in accordance with point 3.1, one additional control device shall be activated to start the engine.] U.K.

[F4 3.3. The terminals of the starter motor shall be protected in order to prevent shunting its solenoid by means of simple tools (e.g. a screwdriver).] U.K.

4. Engine shut-off control device U.K.

Actuating this device must stop the engine without sustained manual effort; it must not be possible for the engine to start again automatically.

When the engine shut-off control device is not combined with the starter control device, it must be of a colour contrasting clearly with the background and the other control devices. If the shut-off control device is a button, it must be coloured red.

5. Differential lock control device U.K.

Identification of this control device, where fitted, is mandatory. The functioning of the differential lock must be clearly indicated, if this is not apparent from the position of the control device.

6. Three-point lifting mechanism control device(s) U.K.

6.1. Either the three-point lifting mechanism control device(s) shall be fitted in such a way as to ensure that lifting and lowering manoeuvres can be carried out safely, and/or automatic coupling parts shall be fitted on the attachment devices of the lifting equipment so that the presence of an operator between the tractor and the equipment is not required. The presence of such a control device(s), where fitted, must be indicated. U.K.

6.2. The safety requirements for the lifting and lowering of the tools being carried are deemed to be fulfilled where the following conditions are met: U.K.

6.2.1. Main control device(s) U.K.

The main control device(s) and any linkage are arranged or protected in such a way that the operator is unable to reach them if he is standing on the ground between the tractor and the mounted implement, or external control device(s) shall be fitted;

6.2.2. External control device(s) U.K.

6.2.2.1. The rear external control device(s) of the three-point hydraulic lifting mechanism, when fitted, shall be laid out in such a way that the operator can actuate them from outside of the rear hazard zone (Figure 1). This requirement is deemed to be fulfilled if are located outside the area identified by the vertical planes passing on the inner edge of the mud-guards and at: U.K.

(a)

a horizontal distance of minimum 550 mm from the PTO axis or, when this is not technically possible, on the outer side of the mud-guard/fender.

(b)

a maximum height of 1 800 mm from the ground or, when this is not technically possible, 2 000 mm.

6.2.2.2. The front three-point lift external control device(s) shall be located outside the front hazard zone (Figure 2) and at a maximum height above the ground of 1 800 mm or, when this is not technically possible, 2 000 mm. U.K.

And

6.2.2.3. The three-point hydraulic lifting mechanism is actuated by means of control device(s) which restrict the amount of movement to a maximum of 100 millimetres each time the control device is actuated. The measurement points in this case are formed by the coupling points on the lower arms of the three-point coupling, U.K.

Or

6.2.2.4. The three-point hydraulic lifting mechanism is actuated by means of control device(s) which operate on the ‘hold-to-run principle’. U.K.

6.2.3. Tractors of categories T2/C2 and T4.1/C4.1 U.K.

In the case of tractors of categories T2/C2 and T4.1/C4.1, the main control device(s) shall be located in front of the vertical plane passing through the seat reference point (S), the seat being in a central position.

6.2.4. Other arrangements are permitted if the manufacturer provides evidence that they have an effect at least equivalent to the requirements set out in points 6.2.1 to 6.2.3. U.K.

7. Power Take-Off (PTO) control device(s) U.K.

7.1. PTO control device(s) shall be designed in a way which avoids unintentional actuation. U.K.

7.1.1. The PTO control device(s) shall be clearly identified by yellow colour and shall not be subject to confusion with other control device(s) if provided (e.g. three-point linkage control device, hydraulic control devices). U.K.

7.2. It shall not be possible to start the engine with the PTO engaged. U.K.

[F3 7.3. It shall always be possible to shut off the PTO from the driving position. This requirement shall also apply to the associated PTO external control device(s), if fitted. The shut off shall be always an override control device.] U.K.

[F3 7.4. Additional requirements for the PTO external control device(s), if fitted] U.K.

7.4.1. The start control device shall operate according to the ‘hold-to-run principle’ for at least the first three seconds of actuation. U.K.

7.4.2. After actuating the control device(s) the time delay to the intended operation shall not be more than the time for the power take-off technical engage/disengage system to operate. If this delay time is exceeded, an automatic deactivation of the PTO drive shall occur. U.K.

7.4.3. Interaction between external PTO control device(s) and operator’s seat position PTO control device(s) shall not be permitted. U.K.

7.4.4. The rear PTO external control device(s), when fitted, shall be laid out in such a way that the operator can actuate them from outside of the rear hazard zone (Figure 1). This requirement is deemed fulfilled if the external control device(s) are located outside the area identified by the vertical planes passing on the inner edge of the mud-guards and at: U.K.

(a)

a horizontal distance of minimum 550 mm from the PTO axis or, when this is not technically possible, on the outer side of the mud-guard/fender;

(b)

a maximum height of 1 800 mm from the ground or, when this is not technically possible, 2 000 mm.

7.4.5. The front PTO external control device(s), when fitted, shall be located outside the front hazard zone (see Figure 2) and at a maximum height above the ground of 1 800 mm, or, when this is not technically possible, 2 000 mm. U.K.

7.4.6. An external PTO stop red or yellow single button shall be located outside the hazard zones identified in Figures 1 and 2. U.K.

7.4.6.1. The external PTO stop red or yellow single button shall stop simultaneously the three-point lifting mechanism if the requirements set out in point 6.2.2.4 are not fulfilled in accordance with point 6.2.4. U.K.

8. Remote valve control device(s) U.K.

8.1. The rear remote valve control device(s), when fitted, shall be laid out in such a way that the operator can actuate them from outside of the rear hazard zone (Figure 1). This requirement is deemed fulfilled if the external control device(s) are located outside the area identified by the vertical planes passing on the inner edge of the mud-guards and at: U.K.

(a)

a horizontal distance of minimum 550 mm from the PTO axis or, when this is not technically possible, on the outer side of the mud-guard/fender.

(b)

a maximum height of 1 800 mm from the ground or, when this is not technically possible, 2 000 mm.

8.2. The front remote valve control device(s), when fitted, shall be located outside the front hazard zone (see Figure 2) and at a maximum height above the ground of 1 800 mm, or, when this is not technically possible, 2 000 mm. U.K.

9. Operator Presence Control (OPC) U.K.

9.1. Park brake OPC U.K.

Vehicles of categories T and C, with the exception of those equipped with a straddled seat and handlebars which require an active driving position shall have an audible and visible alarm that alerts the operator when he leaves the driving position with the park brake not applied. This audible and visible alarm shall be activated after the operator has been detected out of the driving position and the park brake is not applied. The time-out of the alarm shall be not less than 10 seconds. The alarm shall be de-activated when the operator is detected to be present again in the driving position within this time period or when the park brake is applied within this time period.

9.1.1. Vehicles which require an active driving position, shall have an audible and visible alarm that alerts the operator when he leaves the driving position with vehicle is stationary and the park brake or park lock not applied. This audible and visible alarm shall be activated after the operator has been detected out of the driving position, the park brake or park lock is not applied. The time-out of the alarm shall be not less than 10 seconds. The alarm shall be de-activated when the operator is detected to be present again in the driving position within this time period or when the park brake or park lock is applied within this time period. U.K.

9.2. Power take-off OPC U.K.

For vehicles of categories T and C the stationary power take-off operation shall be enabled by an intentional command from an operator when the tractor is not in motion.

When the operator leaves the driving position with the PTO engaged and the vehicle is not in motion, the drive of the power take-off shaft shall shut off automatically within 7 seconds. The automatic PTO shut off action shall not have negative effects on safety related functions (e.g. breaking). A restart of the Power take-off shall only be possible by an intentional actuation of the operator.

10. Auto-guidance systems U.K.

Auto-guidance systems for tractors (categories T and C) shall be in accordance with the requirements of, ISO 10975:2009.

11. Complex electronic vehicle control systems U.K.

Complex electronic control systems, as listed in appendix 2 of and as defined by (UNECE) Regulation No 79 shall comply with the provisions of Annex 6 to that Regulation.

[F4 12. Virtual terminals U.K.

Control devices related to virtual terminals shall meet the requirements set out in Annex B of ISO 15077:2008.]

Appendix 1

Figures U.K.

Figure 1

Rear hazard zone for location of hydraulic three point lift, PTO and remote valve external control device(s) (three possible locations: A, B or C)

Figure 2

Front hazard zone for location of hydraulic three point lift, PTO and remote valve external control device(s). In the plan view, the front hazard zone is the isosceles trapezoid area, the oblique sides of which are the three-point lift arms: the smaller base of which is the projection of the front part of the tractor's body and the larger base of which is the line passing through the ends of the three-point lift arms.

Figure 3

Area without access to rear PTO and rear three point lifting internal control device(s) for tractors without cab, determined by the vertical planes passing on the inner edge of the mud-guards

Figure 4

Example of external control device(s) arrangement without presumption of comprehensiveness

Appendix 2

Complex electronic vehicle control systems that must comply with the provisions of Annex 6 of UNECE Regulation 79 U.K.

1. Systems that affect the steering function U.K.

2. … U.K.

ANNEX XXIV

Requirements applying to the protection against other mechanical hazards U.K.

1. Layout and marking of flexible hydraulic hoses U.K.

1.1. Flexible hydraulic hoses must be arranged in such a way as to prevent mechanical and thermal damage. U.K.

1.2. Flexible hydraulic hoses in the vicinity of the driver’s or the passenger’s seat must be arranged or protected in such a way that in the event of their failure there can be no danger to any person. U.K.

[F3 1.3. Flexible hydraulic hoses must be clearly identifiable and indelibly marked in accordance with the requirements set out in paragraph 13 of ISO 17165-1:2007.] U.K.

2. R-category trailers with tipping capability (supports for service and maintenance) U.K.

2.1. When it is necessary for the operator to work under raised parts of the machine in order to carry out maintenance or service, mechanical supports or hydraulic locking devices shall be provided to prevent inadvertent lowering. U.K.

2.1.1. Means other than mechanical or hydraulic devices are acceptable, provided an equal or greater level of safety is ensured. U.K.

2.2. It shall be possible to control hydraulic locking devices and mechanical supports from outside the hazard zones. U.K.

2.3. Mechanical supports and hydraulic locking devices shall be identified by use of a colour that contrasts with the overall machine colour or by a safety sign located either on, or in close proximity to, the device. U.K.

2.4. Supports or hydraulic devices manually controlled shall be identified with pictograms in accordance with Annex XXVI and instructions of use shall be provided in the operator's manual. U.K.

2.5. Mechanical supports U.K.

2.5.1. Mechanical supporting devices shall withstand a load of 1,5 times the maximum static load to be supported. U.K.

2.5.2. Detachable mechanical supports shall have a dedicated and clearly visible and identifiable storage position on the machine. U.K.

2.6. Hydraulic locking devices U.K.

2.6.1. Hydraulic locking devices shall be located on the hydraulic cylinder or connected to the hydraulic cylinder by rigid or flexible lines. In the latter case, the lines connecting the locking device to the hydraulic cylinder shall be designed to withstand a pressure at least four times the rated maximum hydraulic pressure. U.K.

2.6.2. The rated maximum hydraulic pressure shall be specified in the operator's manual. The conditions for the replacement of such flexible lines shall also be given in the operator's manual. U.K.

3. Rough surfaces and sharp edges U.K.

Parts that are likely to be contacted by the driver or passengers, while driving, shall have no sharp edges or rough surfaces hazardous to the occupants.

4. Greasing points U.K.

4.1. Greasing points shall be directly accessible by the operator or provided of rigid pipes or flexible high pressure lines to allow the greasing process from an accessible location. U.K.

[F3 4.2. Greasing points shall be clearly identified on the vehicle with symbols, pictorials, pictograms or colour coding and its location and instructions of use shall be indicated in the operator's manual.] U.K.

ANNEX XXV

Requirements applying to guards and protective devices U.K.

1. Vehicles of categories T and C U.K.

For vehicles of categories T and C, the definitions and requirements are identical to those laid down in Annex XVII for the protection of drive components.

2. Vehicles of categories R and S U.K.

For vehicles of categories R and S, the following requirements of Annex XVII for the protection of drive components shall apply:

• section 2. General requirements,

• section 3. Safety distances for avoiding contact with dangerous parts: points 3.1 to 3.2.6, and

• section 4. Strength requirements for guards and barriers.

ANNEX XXVI

Requirements applying to information, warnings and markings U.K.

1. Symbols U.K.

1.1. Symbols used for the control devices indicated in Annex XXIII and other displays should comply with the requirements laid down in ISO 3767 Parts 1 (1998+A2:2012) and, if applicable, Part 2 (:2008). U.K.

1.2. Alternatively to the requirements set out in point 1.1, vehicles with symbols complying with the requirements laid down in UNECE Regulation No 60 shall be deemed to be complying with this Annex. U.K.

2. Pictorials U.K.

2.1. Hazard pictorials should comply with the requirements laid down in ISO 11684:1995. U.K.

2.2. Pictorials for personal protective equipment should comply with the requirements laid down in ISO 7010:2011. U.K.

[F3 3. Hydraulic couplings U.K.

Hydraulic valves and the couplers on the hydraulic valves at the rear, front or sides of tractors, as well as the flow direction and the mode of operation, shall be identified by colour coding and/or numerals to be stated on durable labels resistant to oil, fuel, wear and chemical agents, such as fertilizers; its location, identification and instructions of use shall be indicated in the operator's manual.]

4. Jacking points U.K.

Safe jacking points shall be identified by the manufacturer and clearly marked on the vehicle (e.g. with pictorials).

[F3 5. Additional warning signals with regard to braking U.K.

Tractors shall be equipped with optical brake failure and defect warning signals, in accordance with points 2.2.1.29.1.1 to 2.2.1.29.2.1 of Annex I to Commission Delegated Regulation (EU) 2015/68] (12)

ANNEX XXVII

Requirements applying to materials and products U.K.

1. Oil reservoirs and coolant systems U.K.

Oil reservoirs and coolant systems shall be located, constructed, coated and/or sealed to minimise the risk of spillage that might be injurious to the operator in the event of an overturn.

[F1 2. Burning rate of cab material U.K.

The burning rate of cab interior material such as the seat covering, wall, floor and headliner coverings when provided shall not exceed the maximum rate of 150 mm/min when tested in accordance with the standard ISO 3795:1989 or the standard FMVSS302.]

ANNEX XXVIII

Requirements applying to batteries U.K.

1. Batteries shall be located so they can be properly maintained and exchanged, from the ground or a platform, and shall be secured to remain in position and located or constructed and sealed so as to reduce the possibility of spillage in the event of an overturn. U.K.

2. The battery housing must be designed and constructed in such a way as to prevent the electrolyte being ejected on to the operator in the event of roll-over or tip-over and to avoid the accumulation of vapours in places occupied by operators. U.K.

3. The electrical, non-earth terminals of batteries shall be protected to prevent unintentional contact and shorting to earth. U.K.

4. Battery isolator U.K.

4.1. A vehicle must be designed and constructed in such a way that the battery electrical circuit can be easily disconnected with the aid of an electronic system or an accessible device provided for that purpose (e.g. the tractor's ignition key, common tools or a switch). U.K.

4.2. The position of the battery isolator must be easily accessible and not near dangerous areas. U.K.

4.3. When the battery isolator has neither a specific pictogram for its identification nor the indication of its operation (on-off), the specific graphical symbol indicated in the Figure 1 shall be affixed. U.K.

Figure 1 Graphical symbols for the identification of the battery isolator according to ISO 7000:2014 codes. U.K.

ANNEX XXIX

Requirements applying to protection against hazardous substances U.K.

1. Definitions U.K.

For the purposes of this Annex the following definitions shall apply:

1.1.

‘hazardous substances’ means any substance, such as dust, vapour and aerosol except fumigant which can occur when applying plant protection products and fertiliser and which can expose an operator to a risk of harm.

1.2.

‘plant protection product’ means any product falling within the scope of Regulation (EC) No 1107/2009.

[F3 2. Requirements for the cabin U.K.

2.1. Vehicles of categories T and C fitted with a cab shall comply with the standard EN 15695-1:2009. U.K.

2.2. Vehicles of categories T and C, declared by the manufacturer to provide protection against hazardous substances shall be fitted with a cab of level 2, 3 or 4 according to the definition and complying with the requirements set out in the standard EN 15695-1:2009 (e.g. for a vehicle providing protection against plant protection products that produce vapours which can expose the operator to a risk or harm, the cabin shall be of level 4).] U.K.

3. Requirements for the filters U.K.

3.1. Filters housing must have adequate sizes to allow convenient filter maintenance operations with no risks for the operator. U.K.

3.2. Vehicles of categories T and C providing protection against hazardous substances shall be fitted with a filter meeting the requirements of EN 15695-2:2009/AC 2011. U.K.

ANNEX XXX

Performance standards and assessment of technical services U.K.

1. General Requirements U.K.

Technical services shall demonstrate appropriate skills, specific technical knowledge and proven experience in the specific fields of competence covered by Regulation (EU) No 167/2013 and its delegated and implementing acts adopted pursuant to that Regulation.

2. Standards with which the technical services have to comply U.K.

2.1. Technical services of the different categories set out in Article 59 of Regulation (EU) No 167/2013 shall comply with the standards listed in Appendix 1 to Annex V to Directive 2007/46/EC of the European Parliament and of the Council(13) which are relevant for the activities they carry out. U.K.

2.2.1. Reference to Article 41 of Directive 2007/46/EC in that Appendix shall be construed as a reference to Article 59 of Regulation (EU) No 167/2013. U.K.

2.2.2. Reference to Annex IV of Directive 2007/46/EC in that Appendix shall be construed as a reference to Annex I to Regulation (EU) No 167/2013. U.K.

3. Procedure for the assessment of the technical services U.K.

3.1. The compliance of the Technical services with the requirements of Regulation (EU) No 167/2013 and the delegated acts adopted pursuant to that Regulation shall be assessed in accordance with the procedure set out in Appendix 2 to Annex V to Directive 2007/46/EC. U.K.

3.2. References to Article 42 of Directive 2007/46/EC in Appendix 2 to Annex V to Directive 2007/46/EC shall be construed as references to Article 62 of Regulation (EU) No 167/2013. U.K.

4. Accredited in-house technical services of the manufacturer U.K.

4.1. When a manufacturer or a subcontracting party acting on his behalf satisfies the standards set out in section 2. and the assessment procedure set out in section 2. may be allowed to be designated as a technical service by the approval authority within the meaning Article 60 of Regulation (EU) No 167/2013. U.K.

4.2. However, in order to prevent potential conflicts of interest, the responsibilities of the manufacturer should be specified and the conditions under which a manufacturer may subcontract tests shall be also indicated. U.K.

Textual Amendments

F3 Substituted by Commission Delegated Regulation (EU) 2016/1788 of 14 July 2016 amending Regulation (EU) No 167/2013 of the European Parliament and of the Council as regards the list of requirements for vehicle EU type-approval, and amending and correcting Commission Delegated Regulations (EU) No 1322/2014, (EU) 2015/96, (EU) 2015/68 and (EU) 2015/208 with regard to vehicle construction and general requirements, to environmental and propulsion unit performance requirements, to vehicle braking requirements and to vehicle functional safety requirements (Text with EEA relevance).

F4 Inserted by Commission Delegated Regulation (EU) 2016/1788 of 14 July 2016 amending Regulation (EU) No 167/2013 of the European Parliament and of the Council as regards the list of requirements for vehicle EU type-approval, and amending and correcting Commission Delegated Regulations (EU) No 1322/2014, (EU) 2015/96, (EU) 2015/68 and (EU) 2015/208 with regard to vehicle construction and general requirements, to environmental and propulsion unit performance requirements, to vehicle braking requirements and to vehicle functional safety requirements (Text with EEA relevance).

F5 Deleted by Commission Delegated Regulation (EU) 2016/1788 of 14 July 2016 amending Regulation (EU) No 167/2013 of the European Parliament and of the Council as regards the list of requirements for vehicle EU type-approval, and amending and correcting Commission Delegated Regulations (EU) No 1322/2014, (EU) 2015/96, (EU) 2015/68 and (EU) 2015/208 with regard to vehicle construction and general requirements, to environmental and propulsion unit performance requirements, to vehicle braking requirements and to vehicle functional safety requirements (Text with EEA relevance).

(1)

OJ L 60, 2.3.2013, p. 1.

(2)

Council Decision 97/836/EC of 27 November 1997 with a view to accession by the European Community to the Agreement of the United Nations Economic Commission for Europe concerning the adoption of uniform technical prescriptions for wheeled vehicles, equipment and parts which can be fitted to and/or be used on wheeled vehicles and the conditions for reciprocal recognition of approvals granted on the basis of these prescriptions (Revised 1958 Agreement) (OJ L 346, 17.12.1997, p. 78).

(3)

Regulation (EC) No 595/2009 of the European Parliament and of the Council of 18 June 2009 on type-approval of motor vehicles and engines with respect to emissions from heavy duty vehicles (Euro VI) and on access to vehicle repair and maintenance information and amending Regulation (EC) No 715/2007 and Directive 2007/46/EC and repealing Directives 80/1269/EEC, 2005/55/EC and 2005/78/EC (OJ L 188, 18.7.2009, p. 1).

(4)

Commission Regulation (EU) No 582/2011 of 25 May 2011 implementing and amending Regulation (EC) No 595/2009 of the European Parliament and of the Council with respect to emissions from heavy duty vehicles (Euro VI) and amending Annexes I and III to Directive 2007/46/EC of the European Parliament and of the Council (OJ L 167, 25.6.2011, p. 1).

(5)

Council Directive 80/720/EEC of 24 June 1980 on the approximation of the laws of the Member States relating to the operating space, access to the driving position and the doors and windows of wheeled agricultural or forestry tractors (OJ L 194, 28.7.1980, p. 1).

(6)

Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (OJ L 157, 9.6.2006, p. 24).

(7)

Directive 2003/37/EC of the European Parliament and of the Council of 26 May 2003 on type-approval of agricultural or forestry tractors, their trailers and interchangeable towed machinery, together with their systems, components and separate technical units and repealing Directive 74/150/EEC (OJ L 171, 9.7.2003, p. 1).

(8)

[F1 Unless otherwise stated, the text of the requirements and the numbering set out in point B are identical with the text and numbering of the OECD standard Code for the official testing of protective structures on agricultural and forestry tractors (dynamic test), OECD standard Code 3, Edition 2017 of February 2017.]

(9)

Users are reminded that the seat index point is determined according to ISO 5353 and is a fixed point with respect to the tractor that does not move as the seat is adjusted away from the mid-position. For purposes of determining the clearance zone, the seat shall be placed in the rear and uppermost position.

(10)

Council Directive of 28 June 1977 on the approximation of the laws of the Member States relating to safety belts and restraint systems of motor vehicles (OJ L 220, 29.8.1977, p. 95).

(11)

OJ L 230, 31.8.2010, p. 119.

(12)

[F3 Commission Delegated Regulation (EU) 2015/68 of 15 October 2014 supplementing Regulation (EU) No 167/2013 of the European Parliament and of the Council with regard to vehicle braking requirements for the approval of agricultural and forestry vehicles ( OJ L 17, 23.1.2015, p. 1 ).]

(13)

Directive 2007/46/EC of the European Parliament and of the Council of 5 September 2007 establishing a framework for the approval of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles (OJ L 263, 9.10.2007, p. 1).

Textual Amendments

F1 Substituted by Commission Delegated Regulation (EU) 2018/830 of 9 March 2018 amending Annex I to Regulation (EU) No 167/2013 of the European Parliament and of the Council and Commission Delegated Regulation (EU) No 1322/2014 as regards the adaptation of the vehicle construction and general requirements for the approval of agricultural and forestry vehicles.

F3 Substituted by Commission Delegated Regulation (EU) 2016/1788 of 14 July 2016 amending Regulation (EU) No 167/2013 of the European Parliament and of the Council as regards the list of requirements for vehicle EU type-approval, and amending and correcting Commission Delegated Regulations (EU) No 1322/2014, (EU) 2015/96, (EU) 2015/68 and (EU) 2015/208 with regard to vehicle construction and general requirements, to environmental and propulsion unit performance requirements, to vehicle braking requirements and to vehicle functional safety requirements (Text with EEA relevance).