Document ID: chunk:federal_register_of_legislation:F2025C00107:reg:4:p3
Version: federal_register_of_legislation:F2025C00107
Segment Type: reg
Provision Reference: reg 4 (pt 3/26)
Character Range: 92518–95634

rear axle is at least 250 mm.

 2.                                  Load and checking conditions
     1.                            The measurements referred to clause 2.1 of this appendix are determined with the vehicle loaded to its 'Gross Vehicle Mass'.
     2.                            When measuring the 'Approach Angle' and the 'Departure Angle', no account is taken of underrun protective devices.

APPENDIX 2

      'Antilock System' requirements

 1.                                  General requirements for all vehicles incorporating an 'Antilock System'
     1.                            At speeds exceeding 15 km/h, the wheels on at least one axle in each axle group must remain unlocked when a 'Control' force of 685 N is suddenly applied on the 'Control' or in the case of a 'Control' which solely modulates 'Stored Energy', full stroke of the 'Control' is suddenly applied, when braking from an initial speed of 40 km/h (+5 to -1 km/h) and also from an initial speed of 80 km/h (or greater) on a road surface having approximately uniform surface friction on both sides of the vehicle.
         1.                     These tests are to be performed according to the general test conditions of clause 7, with the vehicle laden to 'Lightly Loaded Test Mass 35/...' and again with the vehicle laden to 'Maximum Loaded Test Mass 35/...'.
         2.                     Brief periods of locking of the wheels will, however, be allowed but stability must not be affected.

         3.                     The transmission condition and the minimum 'Average Deceleration' achieved, for each combination of initial speed and vehicle mass, must be as set out in Table 6.

         4.                     These tests can be combined with those required in clauses 8.3 and 8.6, and can be conducted at any point in the brake test sequence.
     2.                            Any break in the supply of electricity to the 'Antilock System' and any electrical failure of the 'Antilock System' must be signalled to the driver by an optical warning signal appropriately labelled and located in accordance with clause 5.2.12 of this standard.  The lamp may be common with or distinct and separate from any 'Service Brake System' failure 'Visible Indicator' lamp.
         1.                     In case of category NC vehicles, the warning signal must be:
             1.                 red or yellow if after the failure of 'Antilock System', the vehicle meets the performance requirements of all tests specified in clause 8.
             2.                 red, if after the failure of 'Antilock System', the vehicle does not meet the performance requirements of all tests specified in clause 8.
         2.                     In case of vehicles other than category NC vehicles, the warning light must be red or yellow.
         3.                     The warning signal must light up when the 'Antilock System' is energised and must go off after not less than 2 seconds or at the latest when the vehicle reaches a speed of 15 km/h and no defect is present.

 1.                                  Specific