Manitowoc Grove GMK6300L Operating Manual page 680

Crane operation
11.3 Crane operation with main boom
11 - 68
1. Unlocking the telescoping cylinder
The locking pins (5) retract – the telescoping
cylinder is unlocked.
2. Moving and locking the telescoping
cylinder
The telescoping cylinder moves into the
section to be telescoped, e.g. telescopic
section III (3).
The locking pins (5) extend – the telescoping
cylinder is locked.
3. Unlocking 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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