Malfunctions during crane operation
14.5 Emergency operations and programs
Operating Manual GMK6300L 3 112 xxx en 14 - 49
xx.xx.xxxx
– If the display (1) shows no value, there is an
error on the length indicator.
– If a symbol (2) is violet, there is an error on
the proximity switch.
The buttons next to the symbols (3) are active.
After pressing the button, locking or unlocking
is performed immediately.
• Note the error code (4) first if you intend to
contact Manitowoc Crane Care before exe-
cuting the emergency program.
H
In the Telescoping emergency program, all functions for retracting the main
boom remain enabled as long as there are no other errors (hydraulic or
mechanical).
The speed is restricted to approximately 30% of the maximum speed.
– When an error occurs on the proximity switch;
à p. 14 - 53.
– If there is an error on the length indicator;
à next section.
Error at the length
indicator
First register the current status of the telescoping mechanism.
s
G
Risk of damage to the main boom!
Never telescope the main boom if at the same time there is an error at both
the length indicator and the proximity switch.
It would then not be possible for you to monitor operations, and compo-
nents in the main boom could be damaged, or a situation could arise in
which the main boom can no longer be extended or retracted.
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