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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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4. Verification

4.1.Verification of components

The brake specification of the vehicle to be type approved shall comply with the requirements laid down in points 3.7, 3.8 and 3.9.

4.2.Verification of brake energy absorbed
4.2.1.The brake forces (T) for each subject brake (for the same control line pressure pm) necessary to produce the drag force specified for both Type-I and Type-III test conditions shall not exceed the values Te as stated in the test report, which were taken as a basis for the test of the reference brake.
4.3.Verification of hot performance
4.3.1.The brake force (T) for each subject brake for a specified pressure (p) in the actuators and for a control line pressure (pm) used during the Type-0 test of the subject towed vehicle is determined as follows:
4.3.1.1.

The predicted actuator stroke (s) of the subject brake is calculated as follows:

This value shall not exceed sp.

4.3.1.2.

The average thrust output (ThA) of the actuator fitted to the subject brake at the pressure specified in point 4.3.1 is measured.

4.3.1.3.

The brake input torque (C) is then calculated as follows:

C shall not exceed Cmax.

4.3.1.4.

The predicted brake performance for the subject brake is given by:

R shall not be less than 0,8 Re.

4.3.2.The predicted brake performance for the subject towed vehicle is given by:
4.3.3.The hot performances following the Type-I or Type-III tests shall be determined in accordance with points 4.3.1.1 to 4.3.1.4. The resulting predictions given by point 4.3.2 shall satisfy the requirements of this Regulation for the subject towed vehicle. The value used for the figure recorded in the Type-0 test as prescribed in point 2.3.3 or 2.5.5 of Annex II shall be the figure recorded in the Type-0 test of the subject towed vehicle.

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