Malfunctions during crane operation
14.5 Emergency operations and programs
14 - 34 3 302 819 en Operating manual
GMK3060
13.12.2018
Determining the
error type
• Check which emergency program procedure is suitable for the current error:
– If the display (1) shows no value, there is an
error on the length indicator of the CCS crane
control system.
– If the display (2) shows no value, there is an
error on the length indicator of the RCL rated
capacity limiter.
• If no values are shown on displays (1) and (2)
you must not start the telescoping process.
Contact
Manitowoc Crane Care.
– If a symbol (3) is violet, there is an error at the
proximity switch.
The symbols (4) and (5) are active. After selection
and confirmation, locking or unlocking is
performed immediately.
G
Risk of damage to the telescoping mechanism!
Ensure that you always have an overview of the current status of the telescoping
mechanism before you initiate locking or unlocking.
In emergency mode, there is no monitoring of prerequisites – the function is
performed immediately after pressing the button.
G
Risk of damage to the telescoping mechanism!
Never telescope the main boom if errors exist simultaneously in the length indi-
cators of the crane control system CCS and the rated capacity limiter RCL.
It would then not be possible for you to monitor operations, and components 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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