OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 36 Mining

Section 582 Auxiliary air reservoirs

In the event of a failure in the main braking pressure supply circuit, there must be a sufficient energy reserve available in the auxiliary system to bring the equipment to a safe stop.

This minimum volume for auxiliary air reservoirs used for modulated emergency braking is six times the actuator’s displacement capacity. This volume is considered sufficient for auxiliary brakes and is approximately half the requirement for normal service braking systems. This requirement allows for repeated pumping of the brake pedal which could be required to stop the machine in an emergency.