Specifications

Brake assessment manual Ver 1.0 Published October 2013 40 (48 pages)
Test H: Spike stops
[Based on: ADR 31/00, Clause 31.3.2, Item 25 and Clause 31.5.25.]
This test is intended to highlight any problems with structural elements of the vehicle
modifications by applying a sudden and instantaneous load to the vehicle. Increasing the
braking performance places additional stress on original components which may not have
been designed for increased loadings
For modifications 6-12, travelling at 55 km/h and the gear selector in the ‘neutral’ position,
the vehicle shall do either:
five stops at MLTM; or
ten stops at LLTM.
For other modifications requiring this test, travelling at 55 km/h and the gear selector in the
‘neutral’ position, the vehicle shall do ten stops at MLTM.
In all cases, the maximum Pedal Effort must not be less than 500 N must be achieved within
400 milliseconds of pedal application and must be maintained until the vehicle is stationary
provided the wheels are not locked, In the event that one or more wheels lock, the pedal
effort shall be relaxed sufficient to allow the locked wheel or wheels to rotate.
When doing these series of tests, the vehicle should be driven and the Brakes applied in a
manner that avoids locking the wheels. If the wheels do lock, it is not necessary to bring the
vehicle to a stop but the test shall be repeated. Bringing the vehicle to a stop while the
wheels are locked risks damaging the tyres.