- If there is any doubt as to whether lifting can be carried out safely, the crane driver must always stop the lift.
- Neither the crane nor the hooking equipment may be overloaded or damaged.
- Sufficient and suitable hooking equipment must be available.
Signals when working with cranes
Construction workers can be seriously injured when lifting heavy loads with a crane. They risk being crushed if the load swings or is dropped. Therefore, it is important that hooking is carried out so that neither the ground assistant nor people nearby are endangered.
The ground assistant and the crane driver must always maintain safe and clear
communication with one another during the work. They must have full control of the movements of the load, and they must make sure that no loads are carried over people. Communication may be via hand signals or radio. For hand signals, the ground assistant must use the signals illustrated in this folder.
1 For short distances between hooker and crane driver
2 Use at long distances
Note that we have only highlighted the signals you should use when working with cranes. Learn more about safety during crane work in the WEA Guidelines and Executive Orders as well as the MANUAL – Working Environment for Building and Construction prepared by the Sector Council on OSH in the building and construction industry.
The Danish Working Environment Authority (WEA)
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