Manitowoc Grove GMK4100L-1 Operating Manual page 653

To raise the boom
H
H
Operating manual
GMK4100L-1
You can release the raise boom function for derricking again within the per-
mitted working range.
This function is only active if the current degree of utilisation lies above
100% and the crane movements are switched off.
The raising of the main boom will be shut down if the main boom angle is
too great. Then all you can do is set the load down.
Switch off function
– For degree of utilisation above 100%
The function will be switched off if you:
– press button (1) again, or
– switch off the ignition.
– For degree of utilisation below 100%
The function is switched off automatically.
11.4 Operation of the rated capacity limiter
Raising the main boom
•
Press the button (1) once – the information
message (2) is displayed.
– Raising is enabled.
– The speed is reduced to 50%.
•
Raise the main boom until the degree of
utilisation is less than 100%.
– The crane movements will then be
enabled again.
– The button (1) has no function.
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Crane operation
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