Crane operation
11.3 Crane operation with main boom
11 - 70 3 112 993 en Operating manual GMK 6400
12.07.2013
1. Unlocking the telescoping cylinder
The locking pins (5) retract – the telescoping
cylinder is unlocked.
2. Moving and locking the telescoping cylin-
der
The telescoping cylinder moves into the sec-
tion to be telescoped, e.g. telescopic section
III
(3).
The locking pins (5) extend – the telescoping
cylinder is locked.
3. Unlock the telescopic section
(A) – The telescoping cylinder extends until
the locking pins (7) are clear.
(B) – The mechanism (10) retracts the locking
pins (7) – the telescopic section is unlocked.
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