OHS Code Explanation Guide

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

Section 67 Preventing collisions

Whenever two or more lifting devices are on site and close enough that a collision might happen (see Figure 6.9), the employer must:

(a) prepare procedures to prevent collisions. Section 8 of the OHS Regulation requires the procedures to be in writing and available to workers. Such procedures can take into consideration the following:

  • provision of adequate, qualified supervision
  • ground conditions
  • the use of proximity sensing and warning devices
  • exact load weight and configurations
  • the longest expected load radius of each crane
  • boom length and boom angles of each crane
  • line, swing and boom speeds
  • the need to travel with a load; and

(b) ensure that operators are familiar with these procedures as required by section 13 of the OHS Regulation.

Unless specifically required elsewhere in this Part, the employer should

(a) ensure that operators are kept aware of operating conditions, including the location and proximity of other lifting devices;
(b) ensure that all workers involved know exactly what they must do and what movements will be made before the lift begins; and
(c) ensure that operators are provided with a visual or auditory means of communicating with each other.

Only one person should direct and control operations involving multiple cranes. That person should be positioned to view the total operation and should maintain contact with the operators.

Figure 6.9 Example of multiple cranes in service