Document ID: chunk:federal_register_of_legislation:F2018C00339:body:0:p10
Version: federal_register_of_legislation:F2018C00339
Segment Type: other
Provision Reference: 
Character Range: 29304–32649

applied over the same section, and the two results averaged to determine the final result.
         9.3.2.                               Where the difference in start and finish elevations for a brake test, expressed as a percentage of the  'Stopping Distance', is known, the brake test need only be completed in one direction and the result corrected for any difference in elevation exceeding 1 percent.
9.4.                                    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.
9.5.                                    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.
9.6.                                    All road tests must be conducted with energy storage devices charged to 'Nominal Minimum Energy Level' and the 'Axle Groups' loaded to the following,  unless otherwise required by this rule:
         9.6.1.                              For trailers not fitted with a 'Variable Proportioning Brake System', at 'GTM' and in a separate test to the values allowed by Table 1 if this results in a trailer  mass lower than 'GTM'.
         9.6.2.                              For trailers fitted with a 'Variable Proportioning Brake System', at 'GTM' and in a separate test to the 'UTM'.
9.7.                                    The test surface must be either concrete or bitumen pavement and must be free from loose material.
9.8.                                    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.
9.9.                                    The 'Brakes' may be burnished before conducting any effectiveness tests according to the brake manufacturer's recommended procedures.
9.10.                                The 'Brake System' must be adjusted in accordance with the brake manufacturer's recommendations before performance tests are conducted.
9.11.                                The performance requirements must be met with no deviation of the vehicle from its course greater than 300 millimetres.
9.12.                                No part of the 'Brake System' must exceed 100°C immediately prior to the commencement of a brake test sequence.
10.                                      SERVICE BRAKE EFFECTIVENESS TEST CONDITIONS
10.1.                                The initial speed at the point where trailer braking commences must be:
         10.1.1.                           for trailers having an 'Aggregate Trailer Mass' up to 45 tonnes and not being restricted by design speed limitations, 58 to 64 km/h.
         10.1.2.                           for trailers having a 'Aggregate Trailer Mass' greater than 45 tonnes, or special trailers having a design speed less than 58 km/h, not less than the 'Manufacturer's' nominated design speed.
10.2.                                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