Switch off the crane.
Before performing any work on the crane:
Switch off the crane.
Otherwise, components of the crane electrical system will be carrying voltage.
It could also happen that another person inadvertently uses the crane, resulting in objects being thrown from the crane or persons falling from the lifting platforms.
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Danger to persons from electric shock! If an emergency stop button has been pressed, there will still be voltage in the panel and in the pendant control. This voltage could injure or kill people. Completely switch off the crane and secure it against being switched back on before working on it! |
If the crane must remain switched on for maintenance work (e.g. changing the wire rope):
Take other measures to ensure
that the risk of electric shock is prevented and that other persons do not
inadvertently use the crane.
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Mains switch | |
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Padlock | |
Turn the mains switch to
0.
Secure with one or more
padlocks.
This section only applies if the crane has a crane panel (e.g. overhead travelling cranes and, depending on the version and options, possibly also jib cranes and HB cranes).
This is primarily useful if the entire crane installation cannot be switched off with a general mains switch.
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Mains disconnector plug |
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Socket | |
Pull the mains disconnector plug out of the socket on the
crane panel.
Secure the socket with a padlock
to ensure it is not plugged back in accidentally.
Only with chain hoists: The bayonet coupling on the chain hoist cannot be secured against switching back on and is therefore not suitable as a mains disconnector plug.
