Document ID: chunk:federal_register_of_legislation:F2025C00108:front:0:p19
Version: federal_register_of_legislation:F2025C00108
Segment Type: other
Provision Reference: 
Character Range: 54519–57760

for each test conducted according to Table 1 must not be below that specified by more than 1 km/h or above that specified by more than 5 km/h.
 5.                                 Where an 'Antilock System' is fitted, it must be engaged throughout all tests except the partial failure tests where a failure in the 'Antilock System' is simulated.
     1.                           Additional tests may be optionally conducted with the 'Antilock System' disengaged to demonstrate that the vehicle meets the performance requirements of all tests specified in clause 8 when a failure in the 'Antilock System' is simulated.
 6.                                 Where a 'Retractable Axle' is fitted, a vehicle has a number of 'Configurations'. Except as per clause 7.14.1 and 7.14.2 below, it must be demonstrated that in each 'Configuration', the vehicle complies with the laden and the lightly laden condition requirements of this rule for that 'Configuration'.
     1.                           For vehicles not fitted with a 'Variable Proportioning Brake System', the 'Service Brake System' compatibility requirements need only be demonstrated in the 'Configuration' with all 'Axles' in the 'Fully Down' position and in the maximum laden condition as specified in clause 8.13.
     2.                           The requirements of this clause 7.14 do not apply to the Service Brake Actuation Time Tests as described in clause 8.12.
     3.                           The laden condition for a 'Configuration' with the 'Axle' retracted must be considered to be when the 'Axle Group' is laden to the 'Prescribed Transition Mass' for the 'Configuration' being considered.
     4.                           As the vehicle must automatically change its 'Configuration' no later than at the 'Prescribed Transition Mass' by lowering an 'Axle', the automatic system for lowering the 'Axle' may be defeated, for the purposes of demonstrating compliance with the requirements of this clause 7.14.
 7.                                 In the case of a 'Prime Mover', any test required to be performed with the vehicle laden, may be performed while towing an un-braked 'Semi-trailer' loaded such that the required mass and mass distribution of the 'Prime Mover' is achieved.
     1.                           Except as provided in clause 7.15.1.1 below, allowance must be made for the effect of the increased rolling resistance resulting from the combination of vehicles being used to carry out the tests.
         1.                     Rolling resistance may be ignored for service brake laden effectiveness tests in accordance with Table 5 (Item 6A), where a single un-braked, flatbed 'Semi-trailer' with one 'Axle' only, a 'GALR' of at least 8,000 kg and a static load on its 'Axle' of at least 2,000 kg, is used.

 1.                                           PARTICULAR TEST CONDITIONS
     1.                                     Pre-test Instrumentation Check
         1.                               The number of decelerations for the purpose of instrumentation checks must not exceed 20.
         2.                               Such decelerations must be conducted from a speed of not more than 40 km/h and any instantaneous deceleration must not