Crane operation
11.5 Crane operation with main boom
11 - 120 3 302 690 en Operating manual
GMK4100L-1
23.11.2017
Switching off the
slewing gear
If the slewing gear is not required, it should be switched off to avoid unin-
tentional use.
• Press the button (1) once.
– The lamp in the button (1) will light up dimly.
– Symbol (2) will be red if the slewing gear is switched off.
– The slewing gear brake is applied – lamp (3) lights up.
S
Risk of damage to the main boom
Brake the slewing movement down to a standstill before you switch off the
slewing gear. The slewing gear brake is automatically applied when the
slewing gear is switched off.
This prevents excessive lateral forces affecting the main boom due to
heavy deceleration or swinging loads.
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