Manitowoc Grove GMK4100L-1 Operating Manual page 948

Malfunctions during crane operation
14.5 Emergency operations and programs
Telescoping emer-
gency program
menu
H
H
14 - 32
•
If possible, set down the load before starting the emergency program;
à
What to do when malfunctions occur during crane operation , p. 14 - 2.
•
Select and confirm the symbol (1) – the Telescoping emergency program is
opened.
In the emergency program, all functions for retracting the main boom are
enabled as long as there are no other faults (hydraulic or mechanical).
The speed is restricted to approximately 30% of the maximum speed.
If the main boom is telescoped using the emergency program, the current
telescoping must be re-entered;
•
Select and confirm the symbols (1) to (4).
•
Confirm the entry with the symbol (5).
You can cancel the entry at any time using
the (6) or (7) buttons.
Once the correct entry has been made, the
Telescoping emergency programme is started.
The emergency program has a time limit.
The display (1) counts down a time span of
about 360 seconds.
Within this time, you can operate the telescop-
ing mechanism using the emergency program.
If the time is not sufficient you must restart the
emergency program.
à
Entering the current telescoping , p. 14 - 43.
3 302 690 en Operating manual
GMK4100L-1