Malfunctions during crane operation
14.5 Emergency operations and programs
14 - 50 3 112 xxx en Operating Manual GMK6300L
xx.xx.xxxx
• Check the positions of the locking pins as
usual, i.e. on the displays (1) and (2).
• Check that the display (3) shows the RCL
measured value for the extended length of
the telescoping cylinder
.
• Check the telescoping on the RCL.
Checks before telescoping
• Before telescoping, check that the following conditions are met:
– The telescoping cylinder is locked,
symbol (3) is grey.
– The telescopic section is unlocked (press
not more than twice), symbol (1) is yellow.
– Locking is not selected, symbol (2) is grey.
– The telescoping cylinder is at the locking
point, the arrows (4) are green.
G
Risk of accidents from sudden retraction of a telescopic section!
Press the
* button for unlocking the telescopic section not more than
twice. If this does not start the unlocking procedure, contact
Manitowoc Crane Care.
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