Document ID: chunk:federal_register_of_legislation:F2021C00434:body:0:p15
Version: federal_register_of_legislation:F2021C00434
Segment Type: other
Provision Reference: 
Character Range: 42771–46141

of this Rule for that 'Configuration'.  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.  As the vehicle must automatically change its  'Configuration' at the 'Prescribed Transition Mass' by lowering an 'Axle', for the purposes of demonstrating compliance with the requirements of this clause, the automatic system for lowering the 'Axle' may be defeated.
6.14.1.                          The requirements of clause 6.14 do not apply to;
6.14.1.1.                    the 'Service Brake System' compatibility requirements for vehicles capable of drawing a trailer as described in clause 4.1.9.  For vehicles not fitted with a 'Variable Proportioning Brake System', this requirement 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 7.13; or
       6.14.1.2.        the Service Brake Actuation Time Test as described in clause 7.12.
6.14.2.                          It must be demonstrated that in each 'Configuration', including with the 'Retractable Axle' manually lowered if the manual 'Control' for lowering of 'Retractable Axle' is fitted, the vehicle complies with the requirements of this rule in the lightly laden condition.
6.15.                                In the case of a 'Prime Mover', any test required to be performed with the vehicle fully laden, may be performed while towing an unbraked 'Semi-trailer' loaded such that the required mass and mass distribution of the 'Prime Mover' is achieved.
6.15.1.                          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.
7.                                          PARTICULAR TEST CONDITIONS
7.1.                                    Pre-test Instrumentation Check
7.1.1.                              The number of decelerations for the purpose of instrumentation checks must not exceed 20.
7.1.2.                              Such decelerations must be conducted from a speed of not more than 40 km/h and any instantaneous deceleration must not exceed 3 m/s2.
7.2.                                    Service Brake Burnishing Procedure
7.2.1.                              Burnishing, if conducted, consists of any desired number of decelerations to the 'Manufacturer's' recommendation.
7.2.2.                              On completion of the burnishing procedure, if conducted, the brake system may be adjusted in accordance with the 'Manufacturer's' recommendation.
7.3.                                    Service Brake Lightly Laden Effectiveness Test
           A series of tests must be conducted in the manner described in Table 1 (Item 3).  The vehicle will be deemed to satisfy the requirements of this test, if all the parameters specified are met on at least one test within a number of tests that must not exceed 6.
7.4.                                    Lightly Laden Secondary Brake Test
7.4.1.                              Where the secondary brake is not applied by the service brake 'Control', the vehicle must be decelerated using only the 'Secondary Brake System' and deemed to satisfy the requirements of this test, if