Specifications
Brake assessment manual Ver 1.0 Published October 2013 37 (48 pages)
Test C: Park brake
The park brake efficiency shall be tested as follows:
(a) with the vehicle is stationary, apply the park brake;
(b) start the engine and engage low gear;
(c) attempt to move the vehicle forward under light throttle;
(d) engage reverse gear;
(e) attempt to move the vehicle backward.
The park brake shall be deemed to have passed the test if the vehicle remains stationary.
When doing this test on a transmission handbrake, the throttle should be applied smoothly
and gradually to prevent damage to the transmission.
This function test should only apply to a modified vehicle if the donor vehicle park brake
system components are from a vehicle that has been tested and known to comply with the
ADR or other applicable standard, and the modified vehicle is of a lesser mass than the
donor vehicle.
The components comprise the foundation park brake assemblies, equalisers, cables and the
like. The park brake lever may be either from the donor vehicle or one of the same ratio
equivalent.
Cables manufactured by a recognised park brake cable manufacturer either OEM or
aftermarket may be used.
If the components do not meet the above criteria, the modified vehicle must be tested in
accordance with the ADR that applies to the modified vehicle, or a later version of the ADR.
For pre-ADR vehicles, the vehicle must be tested in accordance with any version of ADR 31
or ADR 35 as applicable.
For more information, see Appendix 2.