OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 36 Mining

Section 585 Periodic service brake testing

Subsection 585(1)

The service brakes on specified units of rubber-tired, self-propelled mobile equipment that have a GVW of more than 32,000 kilograms and travel more than 10 kilometres per hour during normal operation must be periodically tested. The purpose of regular testing is to provide a measure of the effectiveness of the brake maintenance program. This periodic brake testing must not be confused with brake certification testing that is required to demonstrate the competency of the original equipment design.

The periodic brake test provides
(a) a comparison of braking between machines,
(b) a measure of braking improvement, deterioration or consistency over time,
(c) workers with an opportunity to observe actual brake performance under simulated emergency conditions, and
(d) information relative to equipment maintenance program effectiveness.

Subsection 585(2)

This subsection gives the Director the authority to request that any piece of rubber-tired, self-propelled mobile equipment to be tested. Such a request will not arbitrarily be made unless worker complaints, site inspections, equipment incidents or other information provides evidence that a braking problem may exist.

In all cases, the expectation is that the mining equipment will be maintained in accordance with the manufacturer’s specifications.

Subsection 585(3)

Due to the increasing fleet size at some operations, the OHS Code has provided the employer with some discretion and flexibility with respect to periodic brake testing of the required units. A minimum of 30 percent of each fleet type of rubber-tired, self-propelled mobile equipment must be tested each year.

A “fleet” is defined by the individual model series or size of the respective units. For example, if a truck fleet consists of both Caterpillar and Komatsu 380 ton trucks, 30 percent of each type should be subjected to periodic brake testing.

If the fleet consists of a variety of truck sizes e.g. 400 ton, 300 ton and 200 ton units, 30 percent of each size will be brake tested in a given year to ensure an adequate sampling.

Subsection 585(4)

Despite subsection 585(3), all individual rubber-tired, self-propelled machines must be brake tested within a given 3-year period. For purposes of follow-up, records should be available to an occupational health and safety officer to show that the brake tests have in fact been completed.

Subsection 585(5)

The expectation of this section is that the braking performance of any given machine will fall within the standard established by the manufacturer. Should periodic brake testing reveal that braking capability has been reduced below an acceptable level, the machine must be removed from service until repairs or adjustments are completed. After repairs or adjustments have been completed, a re-testing of the machine should be performed and documented.

Subsection 585(6)

This section provides the authority for an occupational health and safety officer to request that a given unit of rubber-tired, self-propelled equipment be brake tested. Again, this provision would normally be used only where information or evidence justifies the officer’s request.