Crane operation
11.3 Crane operation with main boom
11 - 100 3 112 993 en Operating manual GMK 6400
12.07.2013
Slewing The following prerequisites must be fulfilled before slewing:
– Houselock is switched off;
à p. 11 - 15.
– The superstructure is unlocked.
– Slewing is permissible with the current rigging mode;
à p. 12 - 89.
– The current rigging mode is entered on the RCL.
If slewing is not permissible with the current rigging mode, the slewing gear
will be disabled.
You can adjust the sensitivity of the control levers to suit the operating con-
ditions;
à Setting the characteristic curves for the control levers, p. 11 - 108.
G
Danger of overturning when slewing with an incorrectly set RCL
Before slewing, always check whether the RCL code valid for the current
rigging mode is displayed.
This prevents slewing operations from being enabled within impermissible
ranges, which would cause the truck crane to overturn.
G
Risk of crushing during slewing!
Before slewing, operate the horn and ensure there are no persons in the
slewing range.
In this way, you prevent persons from getting crushed between the super-
structure and the carrier or between the superstructure and other parts.
S
Risk of the main boom buckling
Do not accelerate the slewing speed to such a degree that the load starts
swinging.
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