Visit the NZ Transport Agency website
www.nzta.govt.nz

Accessibility | Help | Site index | Contact us



You are here: HomeCommercialHvbr › Brake testing

Did you know?

  • 79 truck crashes between 2002 and 2007 were due to brake problems.
  • 23% of CoF inspection failures in 2007 were due to brake problems.
  • 21% of Police CVIU roadside check failures in 2007 were due to brake problems.
  • 13% of the heavy vehicles ordered off the road in 2007 were lacking basic maintenance.

The Heavy Vehicle Brakes Rule and its implementation

In-service brake testing

In-service brake testing changes
The brake testing component of the CoF inspection will change and vehicles will be tested in a semi-laden condition to a minimum of 60 percent of the manufacturer’s axle rating or the statutory axle limit. This loading can be achieved by an actual load or simulated load by axle or chassis tie down.

The brake testing method
The new in-service brakes testing regime will be available from December 2008 and will be progressively rolled out through to early 2009. Operators need to start considering which testing method will be applied by their current Transport Service Delivery Agent (TSDA) testing station.

The test method options are:

  1. Load simulation by axle or chassis tie-down
  2. Actual load (this option may require more than one visit to the testing station).

Load simulation
Load simulation is a technique where an artificial load is applied directly by hydraulic or mechanical pressure to a vehicle's axles or chassis using strops or clamps.

Page created: 7 March 2008