Malfunctions during crane operation
14.5 Emergency operations and programs
14 - 34 3 302 633 en Operating Instructions GMK5250L
27.09.2017
• Retract the telescopic section slowly and as
far as possible;
à Locking points for the tele-
scopic sections
, p. 14 - 37.
• Extend to approx. 28 mm (0.09 ft).
• Select and confirm the symbol (2).
The telescopic section is now locked. In the
Locked position, the locking pins (1) are green.
• Set down the telescopic section and retract
it as far as it will go.
Unlocking the telescoping cylinder
If the telescopic section (1) is locked, you can now unlock the telescoping
cylinder.
• Select and confirm the symbol (1).
The telescoping cylinder is now unlocked.
In the
Unlocked position, the locking pins (2)
are red.
You can now move the telescoping cylinder
into the next telescopic section;
à Locking
points for the telescoping cylinder
, p. 14 - 36.
G
Risk of accidents from sudden retraction of a telescopic section!
You can select and confirm the symbol for unlocking the telescoping cylin-
der only a maximum of 2 times. If this does not start the unlocking proce-
dure, contact
Manitowoc Crane Care.
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