Document ID: chunk:federal_register_of_legislation:F2025C00113:front:0:p12
Version: federal_register_of_legislation:F2025C00113
Segment Type: other
Provision Reference: 
Character Range: 33741–37050

result corrected for any difference in elevation exceeding 1 per cent.
     4.                                 The wind speed difference between two tests in opposite directions, or against the direction of travel in the case of a single brake test, must not exceed 15 km/h.
     5.                                 The towing vehicle used to facilitate the tests must be of a type normally employed to tow the particular trailer under test and must have enough power to attain the initial speed required for the specified braking tests.
     6.                                 All road tests must be conducted with energy storage devices charged to 'Nominal Minimum Energy Level' and the 'Axle Groups' loaded, unless otherwise required by this rule, to:
             1.           The 'GTM' and in a separate series of tests to the values allowed by Table 1 if this results in a trailer mass lower than 'GTM'; and
             2.           In the case of trailers fitted with a 'Variable Proportioning Brake System' in a separate test to the 'UTM'; and
             3.           In the case of trailers not equipped with an 'Antilock System', solely in accordance with clause 7.2.1.1 above, but if fitted with a 'Variable Proportioning Brake System', in a separate series of tests to the 'UTM'.
             1.                                 The test surface must be either concrete or bitumen pavement and must be free from loose material.
             2.                                 No towing vehicle braking system or other contrived means must contribute to braking effort and the towing vehicle engine must be declutched or neutral engaged, during the braking tests required by this rule.
             3.                                 The 'Brakes' may be burnished before conducting any effectiveness tests according to the brake manufacturer's recommended procedures.
             4.                             The 'Brake System' must be adjusted in accordance with the brake manufacturer's recommendations before performance tests are conducted.
             5.                             The performance requirements must be met with no deviation of the vehicle from its course greater than 300 millimetres.
             6.                             No part of the 'Brake System' shall exceed 100°C immediately prior to the commencement of a brake test sequence.

 1.                                       SERVICE BRAKE EFFECTIVENESS TEST CONDITIONS
     1.                                 Except as provided in clause 11.1.1 below, the initial speed at the point where trailer braking commences must be, 58 to 64 km/h.
         1.                           For special trailers having a design speed less than 58 km/h, the initial speed at the point where trailer braking commences must not be less than the 'Manufacturer's' nominated design speed.
     2.                                 The trailer must be braked to a stop from initial speed starting with a 'Control Signal' of 0.2 'E' and in increasing increments of not greater than 0.2 'E' for subsequent stops until an 'Established Retardation Coefficient' of not less than 0.45 is achieved.
     3.                                 In the case of a compressed air 'Brake System' the 'Control Signal', applied to the 'Control Line' at