Crane operation
11.5 Crane operation with main boom
Operating manual 3 302 690 en 11 - 105
GMK4100L-1
23.11.2017
Extending/retract-
ing the telescop-
ing cylinder
Prerequisites
– Telescoping mechanism on – symbol (3)
green
– Telescopic section locked – symbol (1) green
– Telescoping cylinder unlocked – symbol (2)
red
Extending/retracting
• Move the control lever in the corresponding
telescoping direction:
The telescoping cylinder (2) extends/retracts.
The display (1) shows the currently extended
length, for example, 80%.
Near a locking point, the symbols (3) show:
– The direction of travel to the locking point:
s
–Extend: Extension
– Retract: Retraction of the telescoping
1 Extending
2 Retracting
3 At the locking point
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