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Commission Delegated Regulation (EU) 2015/68Show full title

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 (Text with EEA relevance)

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  1. Introductory Text

  2. CHAPTER I SUBJECT MATTER AND DEFINITIONS

    1. Article 1.Subject matter

    2. Article 2.Definitions

  3. CHAPTER II REQUIREMENTS APPLYING TO BRAKING DEVICES AND TRAILER BRAKING COUPLINGS

    1. Article 3.Fitting and demonstration requirements related to braking performance

    2. Article 4.Requirements applying to construction and fitting of braking devices and trailer braking couplings

    3. Article 5.Requirements applying to testing and performance of braking systems and trailer braking couplings and of vehicles fitted with them

    4. Article 6.Requirements applying to the measurement of the response time

    5. Article 7.Requirements applying to energy sources and energy storage devices of braking systems and trailer braking couplings and to vehicles fitted with them

    6. Article 8.Requirements applying to spring brakes and to vehicles fitted with them

    7. Article 9.Requirements applying to parking braking systems equipped with a mechanical brake-cylinder locking device

    8. Article 10.Alternative test requirements for vehicles for which Type-I, Type-II or Type-III tests are not mandatory

    9. Article 11.Requirements applying to the testing of inertia braking systems, braking devices and trailer braking couplings and of vehicles fitted with them as regards braking

    10. Article 12.Requirements applying to vehicles with hydrostatic drive and their braking devices and braking systems

    11. Article 13.Requirements applying to the safety aspects of complex electronic vehicle control systems

    12. Article 14.Requirements and test procedures applying to anti-lock braking systems and to vehicles fitted with them

    13. Article 15.Requirements applying to EBS of vehicles with compressed-air braking systems or of vehicles with data communication via pin 6 and 7 of ISO 7638 connector and to vehicles fitted with such EBS

    14. Article 16.Requirements applying to hydraulic connections of the single-line type and to vehicles fitted with them

  4. CHAPTER III OBLIGATIONS OF THE MEMBER STATES

    1. Article 17.Type-approval of vehicles, systems, components and separate technical units

    2. Article 18.National type-approval of vehicles, systems, components and separate technical units

  5. CHAPTER IV FINAL PROVISION

    1. Article 19.Entry into force and application

  6. Signature

    1. LIST OF ANNEXES

    2. ANNEX I

      Requirements applying to construction and fitting of braking devices and trailer braking couplings

      1. 1. Definitions

      2. 2. Construction and fitting requirements

        1. 2.1. General

          1. 2.1.1. Braking components, separate technical units and parts

            1. 2.1.1.1. The braking components, separate technical units and parts shall be...

            2. 2.1.1.2. In particular, the braking components, separate technical units and parts...

            3. 2.1.1.3. Brake linings shall not contain asbestos.

            4. 2.1.1.4. It is not permitted to fit any components, separate technical...

            5. 2.1.1.5. A towed vehicle shall be equipped with an automatic load...

          2. 2.1.2. Functions of the braking system

            1. 2.1.2.1. Service braking system

            2. 2.1.2.2. Secondary braking system

            3. 2.1.2.3. Parking braking system

          3. 2.1.3. The relevant requirements of Appendix 1 of Annex II shall be applied...

          4. 2.1.4. Connections, for compressed-air braking systems, between tractors and towed vehicles...

            1. 2.1.4.1. The connections of the compressed-air braking systems between tractors and...

          5. 2.1.5. Connections between tractors and towed vehicles with hydraulic braking systems...

            1. 2.1.5.1. Type of connections

              1. 2.1.5.1.1. Hydraulic control line: this is the connecting line with the...

              2. 2.1.5.1.2. Hydraulic supplementary line: this is the connecting line with the...

              3. 2.1.5.1.3. ISO 7638:2003 connector (optional). The ISO 7638:2003 connector may be used...

            2. 2.1.5.2. With the engine running and the parking braking system of...

            3. 2.1.5.3. With the engine running and the parking braking system of...

            4. 2.1.5.4. With the engine running and no brake control on the...

            5. 2.1.5.5. With the engine running and the service brake control device...

          6. 2.1.6. The flexible hoses and cables connecting tractors and towed vehicles...

          7. 2.1.7. Shut-off devices which are not automatically actuated shall not be...

          8. 2.1.8. Pressure test connections

            1. 2.1.8.1. For the purpose of determining the in-use braking forces of...

        2. 2.2. Requirements of braking systems

          1. 2.2.1. Vehicles of categories T and C

            1. 2.2.1.1. The set of braking systems with which a vehicle is...

            2. 2.2.1.2. The equipment providing service, secondary and parking braking may have...

            3. 2.2.1.3. Where there are separate control devices for the service and...

            4. 2.2.1.4. Where use is made of energy other than the muscular...

              1. 2.2.1.4.1. In the event of failure in any part of the...

              2. 2.2.1.4.2. Furthermore, storage devices located down-circuit of this device are such...

              3. 2.2.1.4.3. For hydraulic braking systems with stored energy, requirements of points...

              4. 2.2.1.4.4. In the case of a service braking system consisting of...

            5. 2.2.1.5. The requirements of points 2.2.1.2, 2.2.1.4 and 2.2.1.25 shall be...

            6. 2.2.1.6. On vehicles with a maximum design speed not exceeding 30 km/h,...

              1. 2.2.1.6.1. Performance of hydraulic lines and hose assemblies in case of...

            7. 2.2.1.7. If the service braking system acts on all wheels or...

              1. 2.2.1.7.1. In the case of vehicles with more than two axles,...

            8. 2.2.1.8. The action of the service braking system shall be distributed...

            9. 2.2.1.9. The service, secondary and the parking braking systems shall act...

            10. 2.2.1.10. It shall be possible for the wear of the service...

              1. 2.2.1.10.1. Automatic wear adjustment devices, if fitted, shall, after heating followed...

              2. 2.2.1.10.2. The requirements of 2.2.1.10 and 2.2.1.10.1 are not applicable to...

            11. 2.2.1.11. In hydraulic braking systems:

            12. 2.2.1.12. Warning device

              1. 2.2.1.12.1. Any vehicle fitted with a service braking system actuated by...

                1. 2.2.1.12.1.1. However, in the case of vehicles which are only considered...

              2. 2.2.1.12.2. This acoustic device may be rendered inoperative while the parking...

            13. 2.2.1.13. Without prejudice to the requirements of point 2.1.2.3, where the...

            14. 2.2.1.14. In the case of a tractor to which the coupling...

            15. 2.2.1.15. The pneumatic or hydraulic auxiliary equipment shall be automatically supplied...

            16. 2.2.1.16. A tractor authorised to tow a category R2, R3, R4...

            17. 2.2.1.17. Additional requirements in the case of tractors authorised to draw...

              1. 2.2.1.17.1. In the event of a failure (e.g. breakage) in one...

              2. 2.2.1.17.2. The automatic braking in point 2.2.1.17.1 shall be considered to...

              3. 2.2.1.17.3. In the event of a failure in one of the...

              4. 2.2.1.17.4. In the case of a pneumatic service braking system comprising...

            18. 2.2.1.18. Additional requirements in the case of tractors authorised to draw...

              1. 2.2.1.18.1. The pressure supplied at both coupling heads with the engine...

              2. 2.2.1.18.2. The pressure supplied at the coupling head of the control...

              3. 2.2.1.18.3. With the engine running it shall be possible to generate...

              4. 2.2.1.18.4. As a derogation from the requirement of point 2.2.1.16.1, a...

              5. 2.2.1.18.5. In the case of a failure (e.g. fracture or leak)...

              6. 2.2.1.18.6. In the case of a failure (e.g. fracture or leak)...

              7. 2.2.1.18.7. The pressure in the supplementary line shall fall from its...

              8. 2.2.1.18.8. In order to be able to connect and disconnect the...

              9. 2.2.1.18.9. Tractors towing a vehicle of category R or S and...

            19. 2.2.1.19. In the case of a tractor authorised to tow a...

              1. 2.2.1.19.1. By way of derogation from point 2.2.1.19, in order to...

            20. 2.2.1.20. If point 3.1.3 of Annex II can only be fulfilled...

            21. 2.2.1.21. Anti-lock braking systems for tractors of category Tb

              1. 2.2.1.21.1. Tractors of category Tb with a maximum design speed exceeding...

              2. 2.2.1.21.2. Tractors of category Tb with a maximum design speed exceeding...

            22. 2.2.1.22. Tractors authorised to tow a vehicle equipped with an anti-lock...

            23. 2.2.1.23. If tractors not mentioned in points 2.2.1.21.1 and 2.2.1.21.2 are...

            24. 2.2.1.24. The requirements of Annex X shall be applied to the...

            25. 2.2.1.25. In the case of category Tb tractors with a maximum...

              1. 2.2.1.25.1. The failure of a part of a hydraulic transmission system...

            26. 2.2.1.26. Special additional requirements for the electric transmission of the parking...

              1. 2.2.1.26.1. Tractors with a maximum design speed exceeding 60 km/h

                1. 2.2.1.26.1.1. In the case of a failure within the electric transmission,...

                2. 2.2.1.26.1.2. In the case of an electrical failure in the control...

              2. 2.2.1.26.2. Tractors with a maximum design speed not exceeding 60 km/h...

                1. 2.2.1.26.2.1. In the case of an electrical failure in the control...

              3. 2.2.1.26.3. Alternatively to the parking brake performance requirements according to points...

              4. 2.2.1.26.4. It shall also be possible to release the parking braking...

              5. 2.2.1.26.5. A break in the wiring within the electric transmission, or...

              6. 2.2.1.26.6. Auxiliary equipment may be supplied with energy from the electric...

              7. 2.2.1.26.7. After the ignition/start switch which controls the electrical energy for...

            27. 2.2.1.27. The requirements of Annex XII shall be applied with regard...

            28. 2.2.1.28. Special requirements for coupling force control

              1. 2.2.1.28.1. Coupling force control is only permitted in the tractor.

              2. 2.2.1.28.2. The action of the coupling force control shall be to...

                1. 2.2.1.28.2.1. The coupling force control may control the braking rate TM/FM...

                2. 2.2.1.28.2.2. The coupling force control shall not prevent the maximum possible...

              3. 2.2.1.28.3. The vehicle shall fulfil the laden compatibility requirements of Appendix...

              4. 2.2.1.28.4. A coupling force control failure shall be detected and indicated...

              5. 2.2.1.28.5. Compensation by the coupling force control system shall be indicated...

              6. 2.2.1.28.6. A coupling force control system shall control only the coupling...

            29. 2.2.1.29. Brake failure and defect warning signal

              1. 2.2.1.29.1. Tractors shall be capable of providing optical brake failure and...

              2. 2.2.1.29.2. Tractors equipped with an electric control line and/or authorised to...

                1. 2.2.1.29.2.1. In the case of a tractor equipped with an electric...

                2. 2.2.1.29.2.2. Tractors equipped with an electric connector conforming to ISO 7638:2003...

              3. 2.2.1.29.3. Except where stated otherwise:

              4. 2.2.1.29.4. The warning signals shall be visible, even by daylight; the...

              5. 2.2.1.29.5. The warning signal(s) mentioned above shall light up when the...

              6. 2.2.1.29.6. Non-specified failures or defects or other information concerning the brakes...

            30. 2.2.1.30. Malfunctions of the electric control transmission shall not apply the...

            31. 2.2.1.31. Tractors fitted with hydrostatic drive shall either comply with all...

          2. 2.2.2. Vehicles of categories R and S

            1. 2.2.2.1. Vehicles of categories R1a, R1b (where the sum of the...

            2. 2.2.2.2. Vehicles of categories R1b and S1b (where the sum of...

            3. 2.2.2.3. Where a towed vehicle belongs to category R3, R4 or...

              1. 2.2.2.3.1. By way of derogation from the requirement of point 2.2.2.3,...

            4. 2.2.2.4. The service braking system:

            5. 2.2.2.5. The action of every braking system shall be distributed between...

              1. 2.2.2.5.1. However, in the case of vehicle with significantly different wheel...

            6. 2.2.2.6. Malfunctions of the electric control transmission shall not apply the...

            7. 2.2.2.7. The braking surfaces required to attain the prescribed degree of...

            8. 2.2.2.8. Wear of the brakes shall be capable of being easily...

              1. 2.2.2.8.1. Wear adjustment shall be automatic for the service brakes. However,...

                1. 2.2.2.8.1.1. In the case of towed vehicles of categories:

                2. 2.2.2.8.1.2. In the case of towed vehicles of categories R3b, R4b,...

            9. 2.2.2.9. The braking system shall be such that the towed vehicle...

              1. 2.2.2.9.1. Vehicles of categories R1 and S1, without a braking system,...

              2. 2.2.2.9.2. Vehicles of categories R1, R2, R3a, S1 and S2a where...

              3. 2.2.2.9.3. On towed vehicles with a hydraulic braking system the connecting...

            10. 2.2.2.10. On every towed vehicle which is required to be fitted...

            11. 2.2.2.11. If the towed vehicle is fitted with a device enabling...

            12. 2.2.2.12. On every towed vehicle which is fitted with a hydraulic...

            13. 2.2.2.13. Vehicles of categories R3, R4 and S2 shall satisfy the...

            14. 2.2.2.14. Where the auxiliary equipment is supplied with energy from the...

            15. 2.2.2.15. In addition to the above, towed vehicles with hydraulic braking...

            16. 2.2.2.16. Towed vehicles with a maximum design speed exceeding 60 km/h...

            17. 2.2.2.17. If towed vehicles not mentioned in point 2.2.2.16 are fitted...

            18. 2.2.2.18. Towed vehicles equipped with an electric control line and R3b...

              1. 2.2.2.18.1. It is permitted to connect the braking system to a...

            19. 2.2.2.19. In addition to the requirements of points 2.2.1.17.2.2 and 2.2.1.19,...

      3. 3. Tests

    3. ANNEX II

      Requirements applying to testing and performance of braking systems and trailer braking couplings and of vehicles fitted with them

      1. 1. Definitions

      2. 2. Braking tests

        1. 2.1. General

          1. 2.1.1. The performance prescribed for braking systems shall be based on...

          2. 2.1.2. The stopping distance shall be the distance covered by the...

          3. 2.1.3. For the type-approval of any vehicle, the braking performance shall...

          4. 2.1.4. Behaviour of the vehicle during braking

            1. 2.1.4.1. In braking tests, and in particular in those at high...

            2. 2.1.4.2. Behaviour of the vehicle during braking on a road on...

        2. 2.2. Type-0 braking test (ordinary performance test with brakes cold)

          1. 2.2.1. General

            1. 2.2.1.1. The brake shall be cold. A brake is deemed to...

            2. 2.2.1.2. During the braking test, an axle without a brake, when...

            3. 2.2.1.3. The test shall be conducted under the following conditions:

          2. 2.2.2. Type-0 test for categories T and C vehicles

            1. 2.2.2.1. The test shall be carried out at the maximum design...

            2. 2.2.2.2. To check compliance with the requirements of point 2.2.1.2.4 of...

            3. 2.2.2.3. In the case of vehicles equipped with handlebar and straddle...

          3. 2.2.3. Type-0 test for categories R and S vehicles:

            1. 2.2.3.1. The braking performance of the towed vehicle can be calculated...

            2. 2.2.3.2. If the towed vehicle is fitted with a compressed-air braking...

            3. 2.2.3.3. If the towed vehicle is fitted with a hydraulic braking...

            4. 2.2.3.4. With the exception of cases according to points 2.2.3.5 and...

            5. 2.2.3.5. If a towed vehicle has a continuous or semi-continuous braking...

            6. 2.2.3.6. Alternatively, the evaluation of the braking rate of the towed...

        3. 2.3. Type-I test (fade test)

          1. 2.3.1. With repeated braking

            1. 2.3.1.1. The service braking system of tractors covered by this Regulation...

              1. 2.3.1.1.1. In the case of tractors with a maximum design speed...

            2. 2.3.1.2. If the characteristics of the vehicle do not allow for...

            3. 2.3.1.3. In these tests, the force applied to the control device...

            4. 2.3.1.4. During brake applications the highest gear ratio (excluding overdrive, etc.)...

            5. 2.3.1.5. For regaining speed after braking, the gearbox shall be used...

            6. 2.3.1.6. In the case of vehicles equipped with automatic brake adjustment...

          2. 2.3.2. With continuous braking

            1. 2.3.2.1. The service braking system of vehicles of categories R1, R2,...

            2. 2.3.2.2. The test may be carried out on a level road,...

            3. 2.3.2.3. In the case of towed vehicles equipped with automatic brake...

          3. 2.3.3. Hot performance

            1. 2.3.3.1. At the end of the type-I test (test described in...

            2. 2.3.3.2. For tractors this hot performance shall not be less than...

            3. 2.3.3.3. In the case of towed vehicles, the hot brake force...

          4. 2.3.4. Free running test

        4. 2.4. Type-II test (downhill behaviour test)

          1. 2.4.1. Laden tractor shall be tested in such a manner that...

          2. 2.4.2. For vehicles in which the energy is absorbed by the...

          3. 2.4.3. At the end of the test, the hot performance of...

        5. 2.5. Type-III test (fade test) for laden vehicles of categories:

          1. 2.5.1. R3b, R4b, S2b where the sum of the technically permissible...

          2. 2.5.2. R3a, R4a, S2a, when these vehicles have not been tested...

          3. 2.5.3. R3b, R4b, S2b where the sum of the technically permissible...

          4. 2.5.4. Track test

            1. 2.5.4.1. The adjustment of the brakes shall, prior to the type-III...

            2. 2.5.4.2. For the road test the conditions shall be as follows:...

          5. 2.5.5. Hot performance

          6. 2.5.6. Free running test

      3. 3. Performances of the braking systems

        1. 3.1. Vehicles of category T and C

          1. 3.1.1. Service braking systems

            1. 3.1.1.1. Under Type-0 conditions, the service braking system shall be tested...

            2. 3.1.1.2. In the case of a tractor authorised to tow an...

              1. 3.1.1.2.1. Required minimum combination performance

          2. 3.1.2. Secondary braking system

          3. 3.1.3. Parking braking system

            1. 3.1.3.1. The parking braking system shall, even if it is combined...

            2. 3.1.3.2. For vehicles of category T4.3, the parking braking system shall,...

            3. 3.1.3.3. Hot and cold parking braking performance test

            4. 3.1.3.4. On tractors to which the coupling of towed vehicles is...

              1. 3.1.3.4.1. The requirement of point 3.1.3.4 is considered to be fulfilled...

            5. 3.1.3.5. A parking braking system which has to be actuated several...

          4. 3.1.4. Residual braking after transmission failure

            1. 3.1.4.1. In the case of category Tb tractors with a maximum...

            2. 3.1.4.2. The residual braking effectiveness test shall be conducted by simulating...

        2. 3.2. Vehicles of the categories R and S

          1. 3.2.1. Service braking system

            1. 3.2.1.1. Requirement relating to tests of category R1 or S1 vehicles...

            2. 3.2.1.2. Requirement relating to tests of category R2 vehicles

            3. 3.2.1.3. Requirement relating to tests of category R3, R4 or S2...

            4. 3.2.1.4. Within an axle group, wheel locking on one axle during...

          2. 3.2.2. Parking braking system

            1. 3.2.2.1. The parking braking system with which the towed vehicle is...

            2. 3.2.2.2. The requirements set out in 3.2.2.1 shall be fulfilled even...

            3. 3.2.2.3. Hot and cold parking braking performance test

          3. 3.2.3. Automatic braking system

        3. 3.3. Response time for vehicles of categories T, C, R and...

          1. 3.3.1. Where a vehicle is fitted with a service braking system...

      4. Appendix 1

        Distribution of braking among the axles of vehicles and requirements for compatibility between tractor and towed vehicle

        1. 1. General requirements

          1. 1.1. Vehicles of categories T, C, R and S

            1. 1.1.1. Vehicles of categories Ta, Ca, R2a, R3a, R4a and S2a...

            2. 1.1.2. Vehicles of categories Tb, R2b, R3b, R4b and S2b shall...

            3. 1.1.3. However, vehicles of the categories mentioned in point 1.1.1 and...

            4. 1.1.4 Where the vehicle is installed with an endurance braking system,...

          2. 1.2. The requirements relating to the diagrams specified in points 3.1.6.1,...

          3. 1.3. Validation of the development of braking force.

            1. 1.3.1. At the time of type-approval it shall be checked that...

        2. 2. Symbols

        3. 3. Requirements for tractors of category T

          1. 3.1. Two-axle tractors

            1. 3.1.1. For all categories of tractors for k values between 0,2...

            2. 3.1.2. For all states of load of the vehicle, the adhesion...

            3. 3.1.3. For tractors authorised to tow vehicles of category R3b, R4b...

            4. 3.1.4. For tractors authorised to tow vehicles of category R3b, R4b...

            5. 3.1.5. Verification of the requirements of points 3.1.1. and 3.1.2.

              1. 3.1.5.1. In order to verify the requirements of points 3.1.1 and 3.1.2, the...

              2. 3.1.5.2. If it is not possible, for vehicles with permanent all-wheel...

                1. 3.1.5.2.1. However, for tractors which automatically apply the all-wheel drive when...

              3. 3.1.5.3. Procedure to verify the requirements of point 3.1.5.2.

                1. 3.1.5.3.1. The wheel lock sequence test shall be conducted on road...

                2. 3.1.5.3.2. Test speeds:

                3. 3.1.5.3.3. The pedal force applied may exceed the permissible actuation forces...

                4. 3.1.5.3.4. Pedal force is applied and increased such that the second...

              4. 3.1.5.4. The tests prescribed in point 3.1.5.2 shall be carried out twice...

            6. 3.1.6. Tractors authorised to draw towed vehicles other than rigid drawbar...

              1. 3.1.6.1. The permissible relationship between the braking rate TM/FM and the...

          2. 3.2. Tractors with more than two axles

        4. 4. Requirements for towed vehicles

          1. 4.1. For drawbar towed vehicles fitted with compressed-air and hydraulic braking...

          2. 4.2. For rigid drawbar towed vehicles and centre-axle towed vehicles fitted...

          3. 4.3. For drawbar towed vehicles with inertia braking system

            1. 4.3.1. The requirements according to point 4.1.1 apply also for drawbar...

            2. 4.3.2. For drawbar towed vehicles with inertia braking system and with...

            3. 4.3.3. For the calculation to verify the compliance with the provisions...

        5. 5. Requirements to be met in case of failure of the...

        6. 6. Markings

          1. 6.1 Vehicles which meet the requirements of this Appendix by means...

            1. 6.1.1. When a brake load sensing device is controlled via the...

          2. 6.2. When the requirements of this Appendix are met by means...

          3. 6.3. The markings referred to in points 6.1 and 6.2 shall...

          4. 6.4. Electronically controlled brake force distribution systems that cannot fulfil the...

        7. 7. Vehicle testing

          1. Diagram 1 Tractors of category Tb and drawbar towed vehicles of categories...(see points 3.1.2.1 and 4.1.1.2) Note: The lower limit k...

          2. Diagram 2 Permissible relationship between braking rate TM/PM and the coupling head...

          3. Diagram 3 Permissible relationship between braking rate TR/FR and the coupling head...

    4. ANNEX III

      Requirements applying to the measurement of the response time

      1. 1. General Requirements

        1. 1.1. The response time for the service braking systems shall be...

        2. 1.2. During the tests, the stroke of the brake cylinders of...

        3. 1.3. Response times obtained in conformity with points 2.2, 2.3, 2.4,...

        4. 1.4. The diagrams in Appendices 1 and 2 give examples of...

      2. 2. Tractors equipped with compressed-air braking systems

        1. 2.1. At the beginning of each test, the pressure in the...

        2. 2.2. The response times as a function of the actuating time...

        3. 2.3. The response time to be taken into consideration for the...

        4. 2.4. For an actuating time of 0,2 seconds, the time elapsing...

        5. 2.5. In the case of tractors having a pneumatic control line...

        6. 2.6. The time elapsing from the initiation of brake-pedal actuation to...

        7. 2.7. In the case of tractors authorised to tow vehicles of...

      3. 3. Tractors equipped with hydraulic braking systems

        1. 3.1. The response time tests shall be carried out at an...

        2. 3.2. At the beginning of each test, the pressure in the...

        3. 3.3. The response times as a function of the actuating time...

        4. 3.4. The response time to be taken into consideration for the...

        5. 3.5. For an actuating time of 0,2 seconds, the time elapsing...

        6. 3.6. Tractors equipped with a hydraulic control line for towed vehicles...

          1. 3.6.1. In addition to the requirements of point 1.1, the response...

          2. 3.6.2. The towed vehicle simulator shall have the following components and...

            1. 3.6.2.1. Supplementary line towed vehicle simulator

              1. 3.6.2.1.1. Supplementary line with a female coupling corresponding to ISO 16028:2006...

              2. 3.6.2.1.2. Piston accumulator (or equivalent device) complying with the following characteristics...

              3. 3.6.2.1.3. The piston accumulator (or equivalent device) is connected with the...

              4. 3.6.2.1.4. A testing port shall be provided as close as possible...

              5. 3.6.2.1.5. In order to be able to bleed the simulator before...

            2. 3.6.2.2. Control line towed vehicle simulator

              1. 3.6.2.2.1. Control line with a female coupling corresponding to ISO 5676:1983...

              2. 3.6.2.2.2. Energy storage device with piston (or equivalent device) complying with...

              3. 3.6.2.2.3. The energy storage device with piston (or equivalent device) is...

              4. 3.6.2.2.4. Testing ports shall be provided as close as possible to...

              5. 3.6.2.2.5. In order to be able to bleed air from the...

          3. 3.6.3. The test shall be performed under the following conditions:

          4. 3.6.4. With regard to the measuring of the response time according...

          5. 3.6.5. For an actuating time of 0,2 seconds, the time elapsing...

      4. 4. Towed vehicles equipped with compressed-air braking systems

        1. 4.1. The towed vehicle's response times shall be measured without the...

        2. 4.2. The pressure in the supply line shall be 650 kPa.

        3. 4.3. The simulator for pneumatic control lines shall have the following...

        4. 4.4. The simulator for checking the response to signals transmitted via...

        5. 4.5. Performance requirements

          1. 4.5.1. For towed vehicles with a pneumatic control line the time...

            1. 4.5.1.1. Towed vehicles equipped with a pneumatic control line and having...

          2. 4.5.2. For towed vehicles with an electric control line the time...

          3. 4.5.3. In the case of towed vehicles equipped with a pneumatic...

      5. 5. Towed vehicles equipped with hydraulic braking systems

        1. 5.1. The tests shall be carried out at an ambient temperature...

        2. 5.2. The response times of the towed vehicle shall be measured...

        3. 5.3. The tractor simulator shall have the following characteristics:

        4. 5.4. Performance requirements

          1. 5.4.1. When the calibrated tractor simulator (see point 5.3.6) is connected...

      6. 6. Tractors equipped with service braking system using spring brakes

        1. 6.1. The response time measurement has to be carried out with...

        2. 6.2. The time elapsing from the actuation of the service brake...

      7. Appendix 1

        Examples of pneumatic simulators

        1. 1. Setting the Simulator

        2. 2. Testing the Trailer

        3. 3. Example of a simulator for electric control lines

      8. Appendix 2

        Examples of hydraulic simulators

        1. 1. Towed vehicle simulator

          1. 1.1. Supplementary line towed vehicle simulator

          2. 1.2. Control line towed vehicle simulator

        2. 2. Tractor simulator

    5. ANNEX IV

      Requirements applying to energy sources and energy storage devices of braking systems and trailer braking couplings and to vehicles fitted with them

      1. 1. Definitions

      2. A. COMPRESSED-AIR BRAKING SYSTEMS

        1. 1. Capacity of energy storage devices (Energy reservoirs)

          1. 1.1. General requirements

            1. 1.1.1. Vehicles on which the operation of the braking system depends...

            2. 1.1.2. However, the reservoirs shall not be required to be of...

            3. 1.1.3. When verifying compliance with the requirements laid down in points...

          2. 1.2. Vehicles of category T

            1. 1.2.1. The air brake reservoirs of vehicles shall be so designed...

            2. 1.2.2. During the test, the following requirements shall be satisfied:

          3. 1.3. Vehicles of categories R and S

            1. 1.3.1. Reservoirs fitted to towed vehicles shall be such that after...

            2. 1.3.2. During the test, the following requirements shall be satisfied:

        2. 2. Capacity of energy sources

          1. 2.1. General provisions

          2. 2.2. Symbols specific to this section

          3. 2.3. Conditions of measurement

            1. 2.3.1. In all cases the speed of the compressor shall be...

            2. 2.3.2. The auxiliary equipment reservoirs shall be isolated during the tests...

            3. 2.3.3. On vehicles constructed to tow vehicles, the towed vehicle shall...

          4. 2.4. Interpretation of results

            1. 2.4.1. The time t1 recorded for the least favoured energy storage...

            2. 2.4.2. The time t2 for the least efficient reservoir shall not...

          5. 2.5. Additional test

            1. 2.5.1. When the vehicle is equipped with an auxiliary equipment reservoir...

            2. 2.5.2. The test shall be performed in the conditions prescribed in...

          6. 2.6. Tractors

            1. 2.6.1. Vehicles to which the coupling of a towed vehicle is...

        3. 3. Pressure test connections

          1. 3.1. A pressure test connection shall be fitted at the closest...

          2. 3.2. The pressure test connections shall comply with clause 4 of...

      3. B. VACUUM BRAKING SYSTEMS

        1. 1. Capacity of energy storage devices (energy reservoirs)

          1. 1.1. General

            1. 1.1.1. Vehicles on which the operation of the braking system requires...

            2. 1.1.2. However, the reservoirs shall not be required to be of...

            3. 1.1.3. In verifying compliance with the requirements laid down in points...

          2. 1.2. Vehicles of category T and C

            1. 1.2.1. The reservoirs of agricultural vehicles shall be such that it...

            2. 1.2.2. Testing shall be performed in conformity with the following requirements:...

          3. 1.3. Vehicles of categories R1, R2 and S1

            1. 1.3.1. The reservoir(s) with which towed vehicles are equipped shall be...

            2. 1.3.2. Testing shall be performed in conformity with the following requirements:...

        2. 2. Capacity of energy sources

          1. 2.1. General

            1. 2.1.1. Starting from the ambient atmospheric pressure, the energy source shall...

          2. 2.2. Conditions of measurement

            1. 2.2.1. The speed of the vacuum source shall be:

            2. 2.2.2. Where it is intended to couple to the vehicle a...

      4. C. HYDRAULIC BRAKING SYSTEMS WITH STORED ENERGY

        1. 1. Capacity of energy storage devices

          1. 1.1. General

            1. 1.1.1. Vehicles on which the operation of the braking system requires...

            2. 1.1.2. However, the energy storage devices shall not be required to...

            3. 1.1.3. In verifying compliance with the requirements laid down in points...

          2. 1.2. Vehicles of category T and C

            1. 1.2.1. Vehicles equipped with a hydraulic braking system with stored energy...

            2. 1.2.2. Tractors equipped with a hydraulic braking system with stored energy...

          3. 1.3. Vehicles of categories R and S

            1. 1.3.1. If towed vehicles are equipped with energy storage devices (energy...

            2. 1.3.2. During the test, the following requirements shall be satisfied:

        2. 2. Capacity of hydraulic fluid energy sources

          1. 2.1. Vehicles of category T and C

            1. 2.1.1 Symbols

            2. 2.1.2. Conditions of measurement

              1. 2.1.2.1. During the test to determine the time t, the feed...

              2. 2.1.2.2. During the test to determine the time t, energy storage...

            3. 2.1.3. Interpretation of results

          2. 2.2. Tractors equipped with a hydraulic control line for towed vehicles...

            1. 2.2.1. To determine the feed rate of the energy source the...

            2. 2.2.2. The test shall be performed under the following conditions:

            3. 2.2.3. With the engine running and the bleeding device fully closed,...

          3. 2.3. Vehicles of category R and S

            1. 2.3.1. The energy source shall be powered by the tractor simulator...

            2. 2.3.2. Symbols

            3. 2.3.3. Conditions of measurement

            4. 2.3.4. Interpretation of results

        3. 3. Characteristics of alarm devices

    6. ANNEX V

      Requirements applying to spring brakes and to vehicles fitted with them

      1. 1. Construction, fitting and inspection requirements

        1. 1.1. Definitions

      2. 2. General requirements

        1. 2.1. A spring braking system shall not be used as a...

          1. 2.1.1. Spring brakes may be used as secondary braking system independently...

          2. 2.1.2. Vacuum spring brakes shall not be used for towed vehicles....

        2. 2.2. On vehicles with a maximum design speed not exceeding 30...

        3. 2.3. A small variation in any of the pressure limits which...

        4. 2.4. The following requirements shall apply to tractors equipped with spring...

        5. 2.5. On tractors, the system shall be so designed that it...

        6. 2.6. In the case of tractors, the pressure in the spring...

        7. 2.7. In the case of towed vehicles with compressed-air braking systems,...

        8. 2.8. In case of towed vehicles with hydraulic braking systems not...

        9. 2.9. In case of towed vehicles with hydraulic braking systems using...

        10. 2.10. When the pressure in the line feeding energy to the...

        11. 2.11. If a tractor authorised to tow a vehicle of category...

        12. 2.12. Towed vehicles which utilise the compressed-air service braking system energy...

      3. 3. Auxiliary Release System

        1. 3.1. A spring braking system shall be so designed that, in...

          1. 3.1.1. For the purposes of the requirement laid down in point...

        2. 3.2. If the operation of the auxiliary device referred to in...

        3. 3.3. Where an auxiliary release system utilises stored energy to release...

        4. 3.4. If compressed air is used in the auxiliary release system,...

    7. ANNEX VI

      Requirements applying to parking braking systems equipped with a mechanical brake-cylinder locking device

      1. 1. Definitions

      2. 2. Requirements

        1. 2.1. The mechanical brake-cylinder locking device shall be designed in such...

        2. 2.2. When the pressure in the locking chamber approaches the level...

        3. 2.3. In the case of brake actuators fitted with a mechanical...

        4. 2.4. The locked brake cylinder may only be released if it...

        5. 2.5. In the event of a failure of the source of...

        6. 2.6. The control device shall be such that, when actuated, it...

    8. ANNEX VII

      Alternative test requirements for vehicles for which Type-I, Type-II or Type-III tests are not mandatory

      1. 1. Definitions

      2. 2. General requirements

      3. 3. Specific requirements for towed vehicles

      4. 4. Type-approval certificate

      5. 5. Documentation

      6. Appendix 1

        Alternative procedures for Type-I or Type-III tests for towed vehicle brakes

        1. 1. General

          1. 1.1. In accordance with point 2.4, the Type-I or Type-III test...

          2. 1.2. Tests carried out in accordance with the methods detailed in...

          3. 1.3. Tests carried out in accordance with point 3.6. and the...

          4. 1.4. The adjustment of the brake(s) shall, prior to the Type-III...

          5. 1.5. In the case of towed vehicles equipped with automatic brake...

        2. 2. Symbols used in this Annex are explained in the following...

          1. 2.1. Symbols

        3. 3. Test methods

          1. 3.1. Track tests

            1. 3.1.1. The brake performance tests should preferably be carried out on...

            2. 3.1.2. The results of tests on a combination of axles may...

              1. 3.1.2.1. This is ensured if the following are identical for each...

              2. 3.1.2.2. The documented result for a combination of axles will be...

            3. 3.1.3. The axle(s) should preferably be loaded with the maximum static...

            4. 3.1.4. Allowance shall be made for the effect of the increased...

            5. 3.1.5. The initial speed of the test shall be that prescribed....

          2. 3.2. Inertia dynamometer tests

            1. 3.2.1. The test machine shall have a rotary inertia simulating that...

            2. 3.2.2. The test shall be carried out with a complete wheel,...

              1. 3.2.2.1. By way of derogation from point 3.2.2, the test may...

            3. 3.2.3. Under the conditions specified in point 3.2.2, air cooling at...

            4. 3.2.4. Where the tyre rolling resistance is not automatically compensated for...

          3. 3.3. Rolling road dynamometer tests

            1. 3.3.1. The axle should preferably be loaded with the maximum static...

            2. 3.3.2. Air cooling at a velocity and air flow direction simulating...

            3. 3.3.3. The braking time shall be 1 second after a maximum...

          4. 3.4. Test conditions (General)

            1. 3.4.1. The test brake(s) shall be instrumented so that the following...

          5. 3.5. Test procedures

            1. 3.5.1. Supplementary cold performance test

              1. 3.5.1.1. Bedding in (burnishing) procedure

                1. 3.5.1.1.1. In the case of drum brakes the tests shall start...

                2. 3.5.1.1.2. In the case of disc brakes the tests shall start...

                3. 3.5.1.1.3. Make 20 brake applications from an initial speed of 60...

                4. 3.5.1.1.4. Carry out 30 brake applications from 60 km/h to 30 km/h with...

                5. 3.5.1.1.5. On completion of the 30 brake applications specified in point 3.5.1.1.4...

                6. 3.5.1.1.6. Make 20 brake applications from an initial speed of 60 km/h...

                7. 3.5.1.1.7. Carry out a performance check as follows:

                8. 3.5.1.1.8. Repeat the procedures laid down in point 3.5.1.1.6 and 3.5.1.1.7.3, where...

              2. 3.5.1.2. It is also permissible to carry out the two fade...

              3. 3.5.1.3. This test is carried out at an initial speed equivalent...

              4. 3.5.1.4. Three brake applications are made at the same pressure (p)...

            2. 3.5.2. Fade test (Type-I test)

              1. 3.5.2.1. This test is carried out at a speed equivalent to...

              2. 3.5.2.2. A braking rate is maintained at 7 per cent, including the...

              3. 3.5.2.3. The test is made during 2 minutes and 33 seconds...

              4. 3.5.2.4. Not later than 60 seconds after the end of the...

            3. 3.5.3. Fade test (Type-III test)

              1. 3.5.3.1. Test methods for repeated braking

                1. 3.5.3.1.1. Track tests (see Annex II, point 2.5)

                2. 3.5.3.1.2. Inertia dynamometer test

                3. 3.5.3.1.3. Rolling road dynamometer test

              2. 3.5.3.2. Not later than 60 seconds after the end of the...

          6. 3.6. Performance requirements for automatic brake adjustment devices

            1. 3.6.1. The following requirements shall apply to an automatic brake adjustment...

            2. 3.6.2. The following requirements shall apply to an alternative automatic brake...

              1. 3.6.2.1. Brake performance

              2. 3.6.2.2. On completion of the tests specified in point 3.6.2.1, the...

            3. 3.6.3. Free running test

          7. 3.7. Identification

            1. 3.7.1. The axle shall carry at a visible position the marking...

            2. 3.7.2. A non-integrated automatic brake adjustment device shall carry at a...

            3. 3.7.3. The make and type of each brake lining or pad...

          8. 3.8. Test criteria

            1. 3.8.1. If an automatic brake adjustment device deviates from a tested...

          9. 3.9. Test results

            1. 3.9.1. The result of tests carried out in accordance with points 3.5...

            2. 3.9.2. In the case of a brake installed with an alternative...

            3. 3.9.3. Information document

        4. 4. Verification

          1. 4.1. Verification of components

          2. 4.2. Verification of brake energy absorbed

            1. 4.2.1. The brake forces (T) for each subject brake (for the...

          3. 4.3. Verification of hot performance

            1. 4.3.1. The brake force (T) for each subject brake for a...

            2. 4.3.2. The predicted brake performance for the subject towed vehicle is...

            3. 4.3.3. The hot performances following the Type-I or Type-III tests shall...

    9. ANNEX VIII

      Requirements applying to the testing of inertia braking systems, braking devices and trailer braking couplings and of vehicles fitted with them as regards braking

      1. 1. General provisions

        1. 1.1. The inertia braking system of a towed vehicle comprises the...

        2. 1.2. The control device is the aggregate of the components integral...

        3. 1.3. The transmission is the aggregate of the components comprised between...

        4. 1.4. Braking systems in which accumulated energy (e.g. electric, pneumatic or...

        5. 1.5. Tests

          1. 1.5.1. Determination of essential characteristics of the brake.

          2. 1.5.2. Determination of essential characteristics of the control device and verification...

          3. 1.5.3. Checking on the vehicle:

      2. 2. Symbols

        1. 2.1. Units used

        2. 2.2. Symbols valid for all types of brakes (see Figure 1...

        3. 2.3. Symbols valid for mechanical-transmission braking systems (see Figure 5 of Appendix 1...

        4. 2.4. Symbols valid for hydraulic-transmission braking systems (see Figure 8 of Appendix 1)...

        5. 2.5. Symbols with respect to the braking requirements relating to overload...

        6. 2.6 Types of vehicle classes with regard to inertia braking systems...

          1. 2.6.1. Vehicle Class A

          2. 2.6.2. Vehicle Class B

          3. 2.6.3. Vehicle Class C

      3. 3. General requirements

        1. 3.1. The transmission of force from the coupling head to the...

        2. 3.2. All bolts at joints shall be adequately protected. In addition,...

        3. 3.3. Inertia braking devices shall be so arranged that in the...

        4. 3.4. The inertia braking system shall allow the towed vehicle to...

        5. 3.5. Any special device incorporated for the purpose of point 3.4...

        6. 3.6. Inertia braking systems may incorporate overload protectors. They shall not...

      4. 4. Requirements for control devices

        1. 4.1. The sliding members of the control device shall be long...

        2. 4.2. The sliding members shall be protected by a bellows or...

        3. 4.3. The stress threshold (KA) of the control device shall be...

        4. 4.4. The maximum insertion force D1 shall not exceed 0,10 g · G′A in...

        5. 4.5. The maximum tractive force D2 shall be not less than...

      5. 5. Tests and measurements to be carried out on the control...

        1. 5.1. Control devices submitted to the Technical Service conducting the tests...

        2. 5.2. The following shall be measured in respect of all types...

        3. 5.3. In the case of mechanical-transmission inertia braking systems, the following...

        4. 5.4. In the case of hydraulic-transmission inertia braking systems, the following...

        5. 5.5. In the case of inertia braking system on multi-axled drawbar...

      6. 6. Requirements for brakes

        1. 6.1. In addition to the brakes to be checked, the manufacturer...

        2. 6.2. Testing conditions

          1. 6.2.1. In the case when an overload protector is neither fitted...

          2. 6.2.2. In the case when an overload protector is fitted or...

      7. 7. Tests and measurements to be carried out on the brakes...

        1. 7.1. Brakes and components submitted to the Technical Service conducting the...

        2. 7.2. The following should be determined:

        3. 7.3. In the case of mechanical brakes, the following shall be...

        4. 7.4. In the case of hydraulic brakes, the following shall be...

        5. 7.5. Alternative procedure for the Type-I test

          1. 7.5.1. The Type-I test according to Annex II, point 2.3 does...

          2. 7.5.2. The alternative procedure for the Type-I test shall be carried...

      8. 8. Simulated gradient parking braking system force differential

        1. 8.1. Calculation method

          1. 8.1.1. The pivot points in the compensator shall lie in a...

          2. 8.1.2. Drawing details are to be provided to demonstrate that the...

      9. 9. Test reports

      10. 10. Compatibility between the control device and the brakes of a...

        1. 10.1. A check shall be made on the vehicle to verify...

        2. 10.2. General checks for all types of brakes

          1. 10.2.1. Any parts of the transmission not checked at the same...

          2. 10.2.2. Mass

            1. 10.2.2.1. The maximum mass GA of the towed vehicle shall not...

            2. 10.2.2.2. The maximum mass GA of the towed vehicle shall not...

          3. 10.2.3. Forces

            1. 10.2.3.1. The force threshold KA shall not be below 0,02 g · GA and...

            2. 10.2.3.2. The maximum insertion force D1 may not exceed 0,10 g · GA in...

            3. 10.2.3.3. The maximum tractive force D2 shall be between 0,1 g · GA and...

        3. 10.3. Check of braking efficiency

          1. 10.3.1. The sum of the braking forces exerted on the circumference...

            1. 10.3.1.1. In mechanical-transmission inertia braking systems:

            2. 10.3.1.2. In hydraulic-transmission inertia braking systems:

        4. 10.4. Check of control device travel

          1. 10.4.1. In control devices for multi-axled drawbar towed vehicles where the...

          2. 10.4.2. The effective (useful) travel of control device s′ shall be...

          3. 10.4.3. The following inequalities shall be applied to check whether control...

        5. 10.5. Additional checks

          1. 10.5.1. In mechanical-transmission inertia braking systems a check shall be made...

          2. 10.5.2. In hydraulic-transmission inertia braking systems a check shall be made...

          3. 10.5.3. The general behaviour of the vehicle when braking shall be...

      11. 11. General comments

      12. Appendix 1

        Explanatory diagrams

        1. Figure 1 Symbols valid for all types of brakes (See...

        2. Figure 2 Mechanical-transmission (See points 2.2.10 and 5.3.2 of this...

        3. η H0 = P′ X D x − K ×...

        4. Figure 3 Hydraulic-transmission (See points 2.2.10 and 5.4.2 of this...

        5. η H0 = P X D x − K ×...

        6. Figure 4 Brake checks (See point 2.2.22 and 2.3.4 of...

        7. Figure 5 Mechanical-transmission braking system (See point 2.3 of this...

        8. Figure 5A Mechanical-transmission braking system (See point 2.3 of this...

        9. Figure 6 Mechanical Brake (see point 2 of this Annex)...

        10. Figure 7 Hydraulic Brake (See point 2 of this Annex)...

        11. Figure 8 Hydraulic-Transmission Braking System (See point 2 of this...

    10. ANNEX IX

      Requirements applying to vehicles with hydrostatic drive and their braking devices and braking systems

      1. 1. Definitions

      2. 2. Scope

      3. 3. Special purpose vehicles

      4. 4. Classification of vehicles

      5. 5. Requirements

        1. 5.1. General

          1. 5.1.1. The drive control device shall be constructed in such a...

          2. 5.1.2. To facilitate vehicle recovery, a device is required disengaging the...

        2. 5.2. Design requirements for the braking systems.

          1. 5.2.1. Service braking system

            1. 5.2.1.1. It shall be possible to apply graduated braking action of...

            2. 5.2.1.2. The performance of the service braking system required under the...

              1. 5.2.1.2.1. This requirement is also deemed to be satisfied when the...

              2. 5.2.1.2.2. The control device of the service braking system shall be...

            3. 5.2.1.3. Contrary to point 5.2.1.1, with vehicles of Class I and Class II,...

          2. 5.2.2. Secondary braking system

            1. 5.2.2.1. With regard to the secondary braking system the relevant requirements...

            2. 5.2.2.2. If, in the case of a hydrostatic drive, the vehicle...

          3. 5.2.3. Parking braking system

        3. 5.3. Characteristics of the braking systems

          1. 5.3.1. The set of braking systems with which a vehicle is...

          2. 5.3.2. In the event of breakage of any component other than...

          3. 5.3.3. The systems providing service, secondary and parking braking may have...

          4. 5.3.4. The braking force distribution of the service brake system must...

          5. 5.3.5. The braking force distribution of the service braking system shall...

          6. 5.3.6. By way of derogation from point 5.3.2, in the event...

          7. 5.3.7. In the case of an inch device, or other comparable...

          8. 5.3.8. Warning signals and warning devices

          9. 5.3.9. The energy storage devices (energy reservoirs) of power-driven vehicles shall...

          10. 5.3.10. The pneumatic/hydraulic auxiliary equipment shall be supplied with energy in...

          11. 5.3.11. Wear of the brakes

          12. 5.3.12. In the case of a tractor equipped with a complex...

          13. 5.3.13. If a tractor with a hydrostatic drive is authorised to...

          14. 5.3.14. Response time

      6. 6. Braking tests

        1. 6.1. General

          1. 6.1.1. The relevant requirements of point 2.1 of Annex II shall...

          2. 6.1.2. During the brake test the drivability shall be assessed (e.g....

            1. 6.1.2.1. Lift-off is not permitted for Class III vehicles.

            2. 6.1.2.2. Lifting-off of an axle is permissible for vehicles of Class...

        2. 6.2. Type-0 test

          1. 6.2.1. General

            1. 6.2.1.1. The brake shall be cold. A brake is deemed to...

            2. 6.2.1.2. The test shall be conducted under the conditions as specified...

            3. 6.2.1.3. The road shall be level.

          2. 6.2.2. In the case of manually operated drive control device (Class...

          3. 6.2.3. Service braking system

            1. 6.2.3.1. a combination hydrostatic braking system shall also meet the requirements...

            2. 6.2.3.2. a combination friction braking system shall also meet the requirements...

            3. 6.2.3.3. Successive brake tests are performed

              1. 6.2.3.3.1 with the combination hydrostatic braking system with the friction brake(s)...

              2. 6.2.3.3.2 with the combination hydrostatic braking system with the friction brake(s)...

          4. 6.2.4. Secondary braking system

            1. 6.2.4.1. The secondary braking effectiveness test shall be conducted by either...

            2. 6.2.4.2. The system shall be tested with the appropriate control device....

            3. 6.2.4.3. The limits prescribed for minimum performance, both for tests with...

        3. 6.3. Performance tests of service and secondary braking system (Type-0)

        4. 6.4. Brake test Type-I (fade)

          1. 6.4.1. The service brakes shall be tested in such a manner...

          2. 6.4.2. Alternately, the test may be carried out on a level...

          3. 6.4.3. As an alternative to the procedure with continuous braking described...

          4. 6.4.4. Hot performance

            1. 6.4.4.1. The hot braking performance of the service braking system shall...

            2. 6.4.4.2. Minimum prescribed hot performance (Type-I test)

          5. 6.4.5. The type-I Test can be omitted provided that the following...

        5. 6.5. Parking braking system

          1. 6.5.1. With regard to the parking braking system the requirements of...

          2. 6.5.2. To check compliance with the requirement specified in point 2.2.1.2.4...

    11. ANNEX X

      Requirements applying to the safety aspects of complex electronic vehicle control systems

      1. 1. General

      2. 2. Requirements

    12. ANNEX XI

      Requirements and test procedures applying to anti-lock braking systems and to vehicles fitted with them

      1. 1. Definitions

      2. 2. General

        1. 2.1. This Annex lays down the required braking performance for agricultural...

        2. 2.2. The anti-lock braking systems known at present comprise a sensor...

        3. 2.3. Deviations from the prescribed test procedures are permitted in case...

      3. 3. Types of anti-lock braking systems

        1. 3.1. A tractor is deemed to be equipped with an anti-lock...

        2. 3.2. A towed vehicle shall be deemed to be equipped with...

      4. 4. General requirements

        1. 4.1. Failures within the electric control transmission of the anti-lock braking...

          1. 4.1.1. Sensor anomalies, which cannot be detected under static conditions, shall...

          2. 4.1.2. When the anti-lock braking system is energised with the vehicle...

        2. 4.2. Tractors equipped with an anti-lock braking system and authorised to...

          1. 4.2.1. The warning signal shall not light up when a towed...

        3. 4.3. In the event of a failure as described in point...

        4. 4.4. The operation of the system shall not be adversely affected...

        5. 4.5. A manual device shall not be provided to disconnect or...

        6. 4.6. In the case of vehicles which are equipped with an...

        7. 4.7. In the case of towed vehicles with pneumatic braking systems,...

      5. 5. Special provisions concerning tractors

        1. 5.1. Energy consumption

          1. 5.1.1. Test procedure

            1. 5.1.1.1. The initial energy level in the energy storage device(s) shall...

            2. 5.1.1.2. From an initial speed of not less than 50 km/h...

            3. 5.1.1.3. The vehicle's engine shall be then stopped or the supply...

            4. 5.1.1.4. The service braking control device shall be then fully actuated...

            5. 5.1.1.5. When the control device is applied for the fifth time,...

            6. 5.1.1.6. During the tests, in the case of a vehicle authorised...

          2. 5.1.2. Additional requirements

            1. 5.1.2.1. The coefficient of adhesion of the road surface is measured...

            2. 5.1.2.2. The braking test shall be conducted with the engine disconnected...

            3. 5.1.2.3. The braking time t shall be 15 seconds.

            4. 5.1.2.4. If the time t cannot be completed in a single...

            5. 5.1.2.5. If the test is conducted in several phases, no fresh...

            6. 5.1.2.6. The performance prescribed in point 5.1.1.5 shall be deemed to...

        2. 5.2. Utilisation of adhesion

          1. 5.2.1. The utilisation of adhesion by the anti-lock braking system takes...

          2. 5.2.2. The adhesion utilisation (ε) shall be measured on road surfaces...

          3. 5.2.3. The test procedure to determine the coefficient of adhesion (k)...

          4. 5.2.4. The utilisation of adhesion by the anti-lock braking system shall...

          5. 5.2.5. The condition ε ≥0,75 shall be checked with the vehicle...

        3. 5.3. Additional checks

      6. 6. Special provisions concerning towed vehicles

        1. 6.1. Energy consumption

          1. 6.1.1. Compliance with the above requirement shall be checked by the...

          2. 6.1.2. In the case of compressed-air braking systems, the initial energy...

          3. 6.1.3. With an initial vehicle speed of at least 30 km/h,...

          4. 6.1.4. At the end of the braking, with the vehicle stationary,...

        2. 6.2. Utilisation of adhesion

          1. 6.2.1. Towed vehicles equipped with an anti-lock braking system shall be...

          2. 6.2.2. To eliminate the effects of differential brake temperatures, it is...

        3. 6.3. Additional checks

          1. 6.3.1. At speeds exceeding 15 km/h, the wheels directly controlled by an...

          2. 6.3.2. The provisions of this point shall only apply to towed...

          3. 6.3.3. At vehicle speeds ≥15 km/h, the directly controlled wheels are...

      7. Appendix 1

        Symbols

        1. The following symbols are used in Appendices 2, 3 and...

      8. Appendix 2

        Utilisation of adhesion

        1. 1. Method of measurement for tractors

          1. 1.1. Determination of the coefficient of adhesion (k)

            1. 1.1.1. The coefficient of adhesion (k) shall be determined as the...

            2. 1.1.2. The brakes shall be applied only on one axle of...

            3. 1.1.3. A number of tests at increments of line pressure shall...

              1. 1.1.3.1. Wheel-lock may occur below 20 km/h.

              2. 1.1.3.2. Starting from the minimum measured value of t, called tmin,...

            4. 1.1.4. The braking forces shall be calculated from the measured braking...

            5. 1.1.5. The dynamic load on the axle shall be calculated from...

            6. 1.1.6. The value of k shall be rounded to three decimal...

            7. 1.1.7. Then, the test shall be repeated for the other axles(s)...

            8. 1.1.8. For example, in the case of a two-axle rear-wheel drive...

            9. 1.1.9. One coefficient shall be determined for the front axle kf...

          2. 1.2. Determination of the adhesion utilised (ε)

            1. 1.2.1. The adhesion utilised (ε) is defined as the quotient of...

            2. 1.2.2. From an initial vehicle speed of 55 km/h, or vmax...

            3. 1.2.3. The coefficient of adhesion kM shall be determined by weighting...

            4. 1.2.4. The value of ε shall be rounded to two decimal...

            5. 1.2.5. In the case of a vehicle equipped with an anti-lock...

            6. 1.2.6. In the case of a vehicle equipped with an anti-lock...

          3. 1.3. If ε > 1,00, the measurements of coefficients of adhesion...

          4. 1.4. For tractors equipped with three axles, any axles that are...

          5. 1.5. For tractors with a wheel base less than 3,80 m...

            1. 1.5.1. In that case, the adhesion utilised (ε) is defined as...

        2. 2. Method of measurement for towed vehicles

          1. 2.1. General

            1. 2.1.1. The coefficient of adhesion (k) shall be determined as the...

            2. 2.1.2. The brakes shall be applied on only one axle of...

            3. 2.1.3. A number of tests at increments of line pressure shall...

              1. 2.1.3.1. Wheel-lock may occur below 20 km/h.

              2. 2.1.3.2. Starting from the minimum measured value of t, called tmin,...

            4. 2.1.4. The adhesion utilised (ε) shall be calculated by means of...

            5. 2.1.5. If ε > 1,00 the measurements of coefficients of adhesion...

            6. 2.1.6. The maximum braking rate (zRAL) shall be measured with full...

          2. 2.2. Drawbar towed vehicles

            1. 2.2.1. The measurement of k (with the anti-lock braking system being...

            2. 2.2.2. The values of kf and kr shall be rounded to...

            3. 2.2.3. The coefficient of adhesion kR shall be determined proportionally according...

            4. 2.2.4. Measurement of zRAL (with the anti-lock braking system operative)

          3. 2.3. Rigid drawbar towed vehicles and centre-axle towed vehicles

            1. 2.3.1. The measurement of k (with the anti-lock braking system being...

            2. 2.3.2. The measurement of zRAL (with the anti-lock braking system operative)...

      9. Appendix 3

        Performance on differing adhesion surfaces

        1. 1. Tractors

          1. 1.1. The prescribed braking rate referred to in point 6.3.5 of...

          2. 1.2. The coefficient of adhesion (kH and kL) of the high-...

          3. 1.3. The braking rate (zMALS) for laden tractors shall be:

        2. 2. Towed vehicles

          1. 2.1. The braking rate referred to in point 6.3.2 of this...

          2. 2.2. The braking rate zRALS shall be:

      10. Appendix 4

        Method of selection of the low-adhesion surface

        1. 1. Details of the coefficient of adhesion of the surface selected,...

          1. 1.1. These data shall include a curve of the coefficient of...

            1. 1.1.1. The maximum value of the curve will represent kpeak and...

            2. 1.1.2. The ratio R shall be determined as the quotient of...

            3. 1.1.3. The value of R shall be rounded to one decimal...

            4. 1.1.4. The surface to be used shall have a ratio R...

        2. 2. Prior to the tests, the technical service shall ensure that...

          1. 2.1. The value of R shall be mentioned in the test...

    13. ANNEX XII

      Requirements applying to EBS of vehicles with compressed-air braking systems or of vehicles with data communication via pin 6 and 7 of ISO 7638 connector and to vehicles fitted with such EBS

      1. 1. Definitions

      2. 2. General requirements

        1. 2.1. The electric control line shall conform to ISO 11992-1 and 11992-2:2003...

        2. 2.2. The support of messages defined within ISO 11992-2:2003 including Amd.1:2007 is...

        3. 2.3. The functional compatibility of tractors and towed vehicles equipped with...

        4. 2.4. When a tractor is equipped with an electric control line...

      3. 3. Special requirements for the connections between tractors and towed vehicles...

        1. 3.1. The electric control line of the tractor shall provide information...

        2. 3.2. A tractor equipped according to point 2.1.4.1.3 of Annex I shall...

        3. 3.3. In the case of a tractor equipped with two control...

        4. 3.4. A towed vehicle may be equipped as described in point...

        5. 3.5. If the operation of the parking braking system on the...

      4. 4. Special additional requirements for service braking systems with electric control...

        1. 4.1. Tractors

          1. 4.1.1. With the parking braking system released, the service braking system...

          2. 4.1.2. In the case of a single temporary failure (< 40...

          3. 4.1.3. A failure within the electric control transmission, not including its...

          4. 4.1.4. A tractor electrically connected to a towed vehicle via an...

          5. 4.1.5. In the event of a failure of the energy source...

          6. 4.1.6. When the battery voltage falls below a value nominated by...

          7. 4.1.7. If auxiliary equipment is supplied with energy from the same...

          8. 4.1.8. If the auxiliary equipment is supplied with energy from the...

            1. 4.1.8.1. In the event of a failure in the energy source,...

            2. 4.1.8.2. In the event of a failure in the energy source,...

          9. 4.1.9. In the case of a failure in the electric control...

          10. 4.1.10. In the case of a failure in the electric control...

        2. 4.2. Trailers

          1. 4.2.1. In the case of a single temporary failure (< 40 ms)...

          2. 4.2.2. In the case of a failure within the electric control...

          3. 4.2.3. A failure within the electric control transmission of the towed...

      5. 5. Additional requirements

        1. 5.1. Tractors

          1. 5.1.1. Generation of a braking signal to illuminate stop lamps

            1. 5.1.1.1. Activation of the service braking system by the driver shall...

            2. 5.1.1.2. Requirements for vehicles that utilise electronic signalling to control initial...

            3. 5.1.1.3. In the case of vehicles equipped with a braking system...

            4. 5.1.1.4. The signal shall not be generated when deceleration is produced...

            5. 5.1.1.5. Activation of the service braking system by automatically commanded braking...

            6. 5.1.1.6. Activation of part of the service braking system by selective...

            7. 5.1.1.7. In the case of vehicles equipped with an electric control...

        2. 5.2. Towed vehicles

          1. 5.2.1. Whenever power supplied by the ISO 7638:2003 connector is used for...

          2. 5.2.2. In the case of a failure in one of the...

          3. 5.2.3. When the supply voltage to the towed vehicle falls below...

          4. 5.2.4. When the stored energy in any part of the service...

            1. 5.2.4.1. The low energy value referred to in point 5.2.4 shall...

          5. 5.2.5. Activation of the service braking system

            1. 5.2.5.1. In the case of towed vehicles equipped with an electric...

            2. 5.2.5.2. In the case of towed vehicles equipped with an electric...

      6. 6. Suppression of automatic braking

      7. Appendix 1

        Compatibility between tractors and towed vehicles with respect to ISO 11992 data communications

        1. 1. General

          1. 1.1. The requirements of this Appendix shall only apply to tractors...

          2. 1.2. The ISO 7638 connector provides a power supply for the braking...

          3. 1.3. This Appendix lays down requirements applicable to the tractor and...

        2. 2. The parameters defined within ISO 11992-2:2003 including Amd.1:2007 that are transmitted...

      8. Appendix 2

        Test procedure to assess the functional compatibility of vehicles equipped with electric control lines

        1. 1. General

          1. 1.1. This Appendix lays down a procedure that may be used...

          2. 1.2. The references to ISO 7638 within this Appendix apply to ISO 7638-1:2003...

        2. 2. Tractors

          1. 2.1. ISO 11992 towed vehicle simulator

          2. 2.2. Checking procedure

            1. 2.2.1. Confirm that the manufacturer's/supplier's information document demonstrates compliance with the...

            2. 2.2.2. Check the following, with the simulator connected to the motor...

              1. 2.2.2.1. Control line signalling:

              2. 2.2.2.2. Service/Secondary brake demand:

              3. 2.2.2.3. Failure warning:

              4. 2.2.2.4. Supply line braking request:

              5. 2.2.2.5. Response time:

              6. 2.2.2.6. Illumination of stop lamps

            3. 2.2.3. Additional checks

              1. 2.2.3.1. At the discretion of the Technical Service the checking procedures...

              2. 2.2.3.2. Point 2.4.1. of Appendix 1 defines additional messages that shall under...

        3. 3. Towed vehicles

          1. 3.1. ISO 11992 tractor simulator

          2. 3.2. Checking procedure

            1. 3.2.1. Confirm that the manufacturer's or supplier's Information Document, demonstrates compliance...

            2. 3.2.2. Check the following, with the simulator connected to the towed...

              1. 3.2.2.1. Service brake system function:

                1. 3.2.2.1.1. The towed vehicle response to the parameters defined in EBS 11...

                  1. 3.2.2.1.1.1. For towed vehicles equipped with pneumatic and electric control lines:...

                  2. 3.2.2.1.1.2. Towed vehicles equipped with pneumatic and electric control lines or...

                2. 3.2.2.1.2. For towed vehicles equipped with only an electric control line,...

                3. 3.2.2.1.3. For towed vehicles connected with only an electrical control line,...

              2. 3.2.2.2. Failure warning

                1. 3.2.2.2.1. Check that the appropriate warning message or signal is transmitted...

              3. 3.2.2.3. Response time checking

                1. 3.2.2.3.1. Check that, with no faults present, the braking system response...

              4. 3.2.2.4. Automatically commanded braking

              5. 3.2.2.5. Vehicle stability function

              6. 3.2.2.6. Support of the electric control line

            3. 3.2.3. Additional checks

              1. 3.2.3.1. At the discretion of the Technical Service the checking procedures...

              2. 3.2.3.2. Point 2.4.2 of Appendix 1 defines additional messages that shall under...

    14. ANNEX XIII

      Requirements applying to hydraulic connections of the single-line type and to vehicles fitted with them

      1. 1. General

        1. 1.1. In addition to at least one type of connection as...

        2. 1.2 Hydraulic connections of the single-line type shall be so designed...

        3. 1.3. The service braking system of the tractor shall be fitted...

      2. 2. Hydraulic connections of the single-line type between tractors and towed...

        1. 2.1. Type of connection: hydraulic control line with the male connector...

        2. 2.2. With the engine running and the control device of the...

        3. 2.3. With the engine running and no brake control device on...

        4. 2.4. The response time requirements of Annex III do not apply...

        5. 2.5. The compatibility requirements according to Appendix 1 to Annex II...

      3. 3. Alternative requirements

        1. 3.1. The hydraulic circuit shall be provided with a relief valve...

        2. 3.2. With no brake control device (including parking brake) applied on...

        3. 3.3. Applying tractor service brakes gradually, pressure at coupling head shall...

        4. 3.4. Permissible relationship between braking rate TM/FM and the coupling head...

        5. 3.5. The response time at the coupling head, measured connecting the...

        6. 3.6. In case of failure of the towed vehicle braking system...

        7. 3.7. In case of failure of the tractor service brakes, operator...

        8. 3.8. The tractor shall be equipped with the warning signal specified...

        9. 3.9. Braking valve and energy source shall be marked in accordance...

        10. 3.10. Towed vehicle simulator: The device simulating the towed vehicle braking...

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