Manitowoc Grove GMK6300L Operating Manual page 944

Malfunctions during crane operation
14.5 Emergency operations and programs
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Risk of damage due to a mechanically released lock!
Under no circumstances may you operate the telescoping cylinder whilst
the lock is mechanically released. Unscrew all bolts out of the bores imme-
diately after finishing the repair work.
This prevents damage to the telescoping cylinder and the locking system.
3 112 xxx en
Releasing the lock
•
(A) – Telescope out approx. 35 mm (0.11 ft),
so that the cutout (4) is accessible.
•
(B) – Screw a bolt into the bore (1). The lock-
ing pins (2) must retract behind the tele-
scopic section (3).
If necessary, give the locking pin (2) a slight
knock to help this procedure.
•
Unlock the other side of the telescopic
section as well.
Locking the telescopic section
•
(A) – Retract the telescoping until the locking
pin (2) is in the middle of the opening.
•
Screw the screw out of the bore (1) until the
locking pin is fully extended.
•
Remove the bolt from the bore hole.
•
(B) – Retract the telescoping further until the
telescopic section is set down.
Operating Manual GMK6300L