Crane operation
11.3 Crane operation with main boom
11 - 84 3 112 993 en Operating manual GMK 6400
12.07.2013
Extending/retract-
ing the telescop-
ing cylinder
Operating the telescoping cylinder (without telescopic section) is required
when the telescoping cylinder needs to be moved into a different telescopic
section.
Requirements
– Telescoping mechanism on – symbol (3) is
green,
– Telescopic section locked – symbol (2) is
grey,
– Telescoping cylinder unlocked – symbol (1)
is yellow.
Extending/retracting
• Move the control lever in the corresponding
telescoping direction:
The telescoping cylinder (1) retracts/extends.
The display (2) shows the currently extended
length, e.g. 1500 mm (4.92 ft).
Near a locking point, the display (3) shows:
– The distance to the locking point
and
– The direction of travel to the locking point:
– Extend: Extending
– Retract: Retracting
A Yellow: approx. 1 m (3.3 ft)
B Yellow less than 1 m (3.3 ft)
C Green: At the locking point
1 Extending
2 Retracting
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