Malfunctions during crane operation
14.5 Emergency operations and programs
14 - 30 3 302 736 en Operating manual
GMK4090
xx.xx.xxxx
Unlocking lock
• (A) – Extend about 35 mm (0.11 ft), so that
the cutout (4) is accessible.
• (B) – Screw a screw into the hole (1) or (2),
depending on the execution. The locking
pins (2) must retract behind the telescopic
section (3).
If necessary, give the locking pin (3) a slight
knock to help this procedure.
• Unlock the lock on other side of the tele-
scopic section as well.
Locking the telescopic section
• (A) – Retract the telescoping until the locking
pin (3) is in the middle of the opening.
• Depending on the execution, unscrew the
screw from the hole (1) or (2) until the lock-
ing pin (2) is extended completely.
• Remove the screw from the hole (1) or (2). If
necessary, install the lubricating nipple
again.
• (B) – Retract the telescoping further until the
telescopic section is set down.
S
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.
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