Malfunctions during crane operation
14.5 Emergency operations and programs
14 - 50 3 302 819 en Operating manual
GMK3060
13.12.2018
14.5.6 Slewing with an overridden slewing gear shutdown
If the slewing gear is not switched off due to the load torque, slewing can be
released within the permissible working range. For example, for emergency
unrigging when the counterweight cannot be fully pre-stressed.
Overriding shutdown
• Press the button (2) in at the top.
– The lamp (1) lights up.
– The lifting limit switch is overridden.
– Slewing in permissible working range will be released.
– The slewing speed is limited to about 6%.
Cancelling the override
• Release button (2).
– The lamp (1) goes out.
– The lifting limit switch override is cancelled.
– The slewing will be blocked (if the shutdown is still pending).
S
Risk of damage due to overridden slewing gear shutdown!
The slewing is not monitored if the shutdown is overridden.
Before slewing, always make sure that the superstructure and the counterweight
(partially lowered if necessary) cannot damage any parts in the slewing range.
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