Checking The Safety Equipment - Manitowoc Grove GMK6300L Operating Manual

11.1.4
G
Rated capacity
limiter
Lifting limit switch
Operating Manual GMK6300L

Checking the safety equipment

Risk of accidents when working with faulty safety devices!
It is prohibited to operate the crane with safety devices that are faulty,
overridden or out of service!
Have faulty safety devices repaired immediately by Manitowoc Crane Care.
•
Switch on the rated capacity limiter, do all of the checks and enter the
current rigging mode;
The RCL is working correctly at this point in time if no error message is
pending and if crane movements have been enabled.
If the RCL is not working correctly, do not start work with the crane but
notify Manitowoc Crane Care.
•
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 that the Raise movement is switched off and the 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 movements Raise , Lower and Extend are
switched off.
If the lift limit switch is not working correctly, do not start work with the
crane but notify Manitowoc Crane Care.
à
Switch on the RCL , p. 11 - 20.
3 112 xxx en
Crane operation
11.1 Before operating the crane
s
11 - 9