Crane operation
10.4 Operation of the rated capacity limiter
10 - 58 3 302 633 en Operating Instructions GMK5250L
27.09.2017
10.4.8 RCL shutdown
There are different types of RCL shutdowns
– shutdown due to overload,
– Shutdown due to an error;
à p. 14 - 7.
Shutdown due
to overload
If approx. 100% of the maximum permissible load is exceeded, shutdown
will occur due to overload.
– All crane movements which increase the
load moment will be switched off.
– A continuous buzzer tone will sound.
After five seconds, you can switch off the
buzzer tone using button (6) or (7).
– Lamps (4) and (5) light up.
– The display (1) is in the red range.
– The value on display (3) is equal to or
greater than the value on display (2).
Cancelling a shutdown
• Turn off the buzzer tone if necessary.
• Leave the shutdown range by moving the crane according to the follow-
ing table.
H
Switched off crane movements Permitted crane movements
Lift loads Lower loads
Lower the main boom Raising the main boom
1)
Extend the main boom Retracting the main boom
1)
Slew to the left Slew to the right
Slew to the right Slew to the left
Lower the lattice extension Raise the lattice extension
1)
In some cases, the RCL will also switch off these movements. In this case,
leave the shutdown range through other enabled movements. If this is
not possible, set down the load.
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