Crane operation
11.1 Before operating the crane
Operating manual GMK 6400 3 112 993 en 11 - 9
12.07.2013
11.1.4 Checking the safety equipment
Rated capacity
limiter
• Switch on the rated capacity limiter, do all of the checks and enter the cur-
rent rigging mode;
à Switching on the RCL, p. 11 - 20.
The rated capacity limiter is working correctly at this point in time if no error
message is pending and if crane movements have been enabled.
If the rated capacity limiter is not working correctly, do not start work with
the crane but notify Manitowoc Crane Care.
Lifting limit switch
• Raise the main boom until the hook block is lifted off the ground.
• Slowly perform the Raise movement until the hook block lifts the lifting
limit switch weight.
• Now check whether the Raise movement is switched off and lamp (1)
lights up.
• Check that the Lower and Extend movements are also switched off.
The lifting limit switch is working correctly at this point in time if the lamp
(1) lights up and the
Raise, Lower and Extend movements are switched off.
If the lift limit switch is not working correctly, do not start work with the
crane but notify Manitowoc Crane Care.
s
G
Risk of accident when working with faulty safety devices
It is prohibited to operate the crane with safety devices that are faulty, over-
ridden or out of service.
Have faulty safety devices repaired immediately by Manitowoc Crane Care.
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