Malfunctions Of The Outriggers; Malfunctions On The Turntable Lock - Manitowoc Grove GMK4100L-1 Operating Manual

Malfunctions during crane operation
14.4 Troubleshooting
14.4.14
Malfunction
Outrigger cylinders and
beams can neither be
extended nor retracted
and the inclination indica-
tor does not work
When operating from the
crane cab
When operating from the
control units
None of the specified
causes apply
14.4.15
Malfunction
Turntable locking or unlock-
ing function not working
14 - 22

Malfunctions of the outriggers

Control unit fuse blown
– Hand-held control con-
nected to the superstructure
or a bridging plug not
inserted
– Parking brake not applied
– Slewing gear switched on
Display fields switched off
Hand-held control connected
to the superstructure or a
bridging plug not inserted
Solenoid valves are not
switching electrically

Malfunctions on the turntable lock

Control unit fuse blown
Cause
Cause
3 302 690 en
Solution
Replace blown fuses;
à
Fuses in the driver's cab ,
p. 8 - 50
Disconnect hand-held
control or insert bridging
à
plug; p. 12 - 25
Lock the parking brake;
à
p. 5 - 46
Switching the slewing
à
gear off; p. 11 - 120
Switch on display fields;
à
p. 12 - 43
Disconnect hand-held
control or insert bridging
à
plug; p. 12 - 25
Inform
Manitowoc Crane
Care
Solution
Replace the blown fuse;
à
p. 14 - 73
Operating manual
GMK4100L-1