Document ID: chunk:federal_register_of_legislation:F2014C01118:front:0:p8
Version: federal_register_of_legislation:F2014C01118
Segment Type: other
Provision Reference: 
Character Range: 23264–26643

to less than half that required by clause 7.1.
7.4.                                     'Emergency Brake Systems' that employ 'Stored Fluid Energy' to hold them in the release position must be provided with an auxiliary release mechanism. The auxiliary device, control or tool, may rely on fluid energy stored within the trailer brake system, and must be attached to the trailer chassis rail, or equivalent structure, forward of the forward most 'Axle' on the rear 'Axle Group' on the right hand side of the trailer.
         7.4.1.                               If the auxiliary device utilises stored energy then, with the energy storage devices initially charged to '1.0 E' the release system must have sufficient reserve to provide at least 3 applications and releases of the "Emergency Brake system" when the towing vehicle is disconnected.
8.                                          PARKING BRAKE SYSTEM
8.1.                                    The 'Parking Brake System 38/...' must be independent of the 'Service Brake System' except that the brakes and any mechanical system attached directly thereto may be common.
8.2.                                    The 'Parking Brake System 38/...' must be able to be applied by means of a single 'Control' and once applied, must be able to be held in position by purely mechanical means.
8.3.                                    It must not be possible to release the Parking Brake unless a means of immediately reapplying it is available.
8.4.                                    The parking brake must operate when the 'Supply Line' energy level drops below 0.24 'E' (155 kpa). The provisions of clause 8.3 do not apply to the auxiliary release mechanism required by clause 7.4 but the other   provisions of clause 7.4 must apply.
8.5.                                    Additional parking brake facilities are permitted provided that the requirements of clauses 8.2, 8.3 and 8.4 are met.
8.6.                                    Each 'Unique' trailer 'Parking Brake System    38/...' must be shown to be capable of holding the trailer stationary on an 18 percent gradient in either direction by either:
         8.6.1.                               test in accordance with part 9 and clause 14.1; or
         8.6.2.                              test in accordance with part 9 and clause 14.2; or
         8.6.3.                              calculation based on data for 'Approved' components in part 19.
9.                                          GENERAL PERFORMANCE ROAD TEST CONDITIONS
9.1.                                    The ambient temperature at the test site must be greater than 0°C and less than 40°C.
9.2.                                    All road tests must be conducted with tyres fitted of the size specified by the 'Manufacturer' as original equipment and must be inflated to pressures not less than those recommended by the 'Manufacturer'.
9.3.                                    Braking tests must be carried out on approximately level surfaces.
         9.3.1.                               Where the levels are unsurveyed, the test must be completed in both directions, the brakes being 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