Document ID: chunk:federal_register_of_legislation:F2006L03061:body:0:p8
Version: federal_register_of_legislation:F2006L03061
Segment Type: other
Provision Reference: 
Character Range: 22278–25401

brake torque rating of all 'Axles'.

38.2.2.6.                    The 'Established Retardation Coefficients' of the 'Service Brake System' shall be between the upper and lower bounds of Figure 1 (Service Brake Effectiveness Requirement) when tested according to clause 38.3.3 (Service Brake Effectiveness).

38.2.2.7.                    Where a trailer is fitted with a 'Variable Proportioning Brake System' it shall meet the requirements of clause 38.2.2.6 with the brake proportioning device/s set in the 'LTM' position.

38.2.2.8.                    Notwithstanding clause 38.2.2.6 where a trailer is fitted with an 'Antilock System', the 'ERCs' need only exceed the lower bound described in Figure 1.

38.2.3.                          'Emergency Brake System'

38.2.3.1.                    The 'Emergency Brake System' may utilise parts of the 'Service Brake System' on the condition that any one failure of a 'Brake Device' in the 'Service Brake System' does not prevent the 'Emergency Brake System' from achieving its performance requirement. For the purpose of this clause, the 'Brakes' and any mechanical linkage connected directly thereto, shall be considered as not subject to failure.

38.2.3.2.                    The 'Established Retardation Co-efficient' of the 'Emergency Brake System' shall be shown to be not less than 0.18 according to the requirements and limitations of clause 38.3.5 ('Emergency Brake System').  The 'Brakes' force required to obtain an 'ERC' of 0.18
shall be able to be sustained for a period not less than 15 minutes.

38.2.3.3.                    In the case of 'Semi-Trailers', when disconnected from the 'Prime-Mover', the failure of any structure designed to support the front of the trailer shall not reduce the effectiveness of the 'Emergency Brake System' to less than half that required by clause 38.2.3.2.

38.2.3.4.                    'Emergency Brake Systems' that employ 'Stored Fluid Energy' to hold them in the release position shall be provided with an auxiliary release mechanism that is not dependent on fluid energy provided by the tow vehicle. The auxiliary device, control or tool shall be attached to the trailer chassis rail, or equivalent structure, in an inconspicuous position forward of the forward most 'Axle' on the rear 'Axle Group' on the right-hand side of the trailer.

38.2.4.                          'Parking Brake System 38/00'

38.2.4.1.                    The 'Parking Brake System 38/00' shall be independent of the 'Service Brake System' except that the brakes and any mechanical system attached directly thereto may be common.

38.2.4.2.                    The 'Parking Brake System 38/00' shall be able to be applied by means of a single 'Control' and once applied, shall be able to be held in position by purely mechanical means. It shall not be possible to release the Parking Brake unless a means of immediately reapplying it is available. If the parking brake is held in the released position by 'Stored Fluid Energy' the provisions of clause 38.2.3.4 shall apply. Additional parking brake facilities are permitted provided that