OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 6 Cranes, Hoists and Lifting Devices

Section 110 Hoist cage

Subsection 110(1)

A car locking device is a method of securing the cage when it is at the landing. The device stabilizes the cage and prevents it from slipping. Where such a device is part of a friction hoist, it must be operated in accordance with the manufacturer’s specifications to ensure that the hoisting rope does not slacken.

In addition to guiding the movement of the cage, guide rails are part of an emergency braking system. Should the cage descent speed exceed the specified limit, the overspeed limit device actuates roller arms extending outward to engage rollers against the guide rail and prevent or stop the hoist from falling.

Subsection 110(2)

The hoist cage must have a capacity plate similar to that shown in Figure 6.45.

Figure 6.45 Example of hoist cage capacity plate

Subsection 110(3)

An open hook cannot be used to attach the hoist cage to the hoist rope since any slack in the hoisting line might cause the line to come off the hook.