Manitowoc Grove GMK 4100L-1, Operating Manual

Page: 948 / 1016

Malfunctions during crane operation
14.5 Emergency operations and programs
14 - 32 3 302 690 en Operating manual
GMK4100L-1
2
3
.1
1.
201
7
Telescoping emer-
gency program
menu
•
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.
•
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.
H
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.
H
If the main boom is telescoped using the emergency program, the current
telescoping must be re-entered;
à
Entering the current telescoping
, p. 14 - 43.