Manitowoc Grove GMK4100L-1 Operating Manual page 951

Operating manual
GMK4100L-1
Checking functioning of emergency program
The procedure to follow depends on the current status of the telescoping
mechanism.
•
Check the current status of the telescoping mechanism and follow the
cross reference which corresponds to the current status.
– Status 1 – Telescoping cylinder at locking point;
– Status 2 – Telescoping cylinder moving with telescopic section;
à
p. 14 - 36.
– Status 3 – Telescoping cylinder on return run (without telescopic
à
section); p. 14 - 36.
Status 1 – Telescoping cylinder at locking point
•
Carry out the check for the current locking status and observe the result.
– Result
If the required symbol (1) is displayed, you can operate the emergency
à
Retracting with emergency program , p. 14 - 38.
program;
If the symbol (2) is still displayed, the emergency program will be
disabled. Contact
– Telescoping cylinder and telescopic section
locked
•
Select and confirm one of the symbols for
unlocking, e.g. the symbol (2) for the
telescopic cylinder.
•
Check that the symbol (1) is displayed.
– Telescoping cylinder or telescopic section
unlocked
•
Select and confirm one of the symbols
for locking, e.g. the symbol (2) for the
telescopic cylinder.
•
Check that the symbol (1) is displayed.
Manitowoc Crane Care
3 302 690 en
Malfunctions during crane operation
14.5 Emergency operations and programs
à
p. 14 - 35.
.
s
14 - 35