Manitowoc GROVE GMK5150L

Malfunctions during crane operation
14.4 Troubleshooting
14 - 24 3 302 709 en Operating manual
GMK5150L
12.01.2018
14.4.13 Malfunctions of the outriggers
14.4.14 Malfunctions on the turntable lock
Malfunction Cause Solution
Outrigger cylinders and
beams can neither be
extended nor retracted
and the inclination indica-
tor does not work
Control unit fuse blown Replace blown fuses;
à Fuses in the driver's cab,
p. 8 - 50
When operating from the
crane cab
– Hand-held control con-
nected to the superstruc-
ture or a bridging plug
not inserted
– Parking brake not applied
– Slewing gear switched on
Disconnect hand-held con-
trol or insert bridging plug;
à p. 12 - 25
Lock the parking brake;
à p. 5 - 46
Switching the slewing gear
off;
à p. 11 - 120
When operating from the
control units
Display fields switched off Switch on display fields;
à p. 12 - 45
Hand-held control con-
nected to the superstruc-
ture or a bridging plug not
inserted
Disconnect hand-held con-
trol or insert bridging plug;
à p. 12 - 25
None of the specified
causes apply
Solenoid valves are not
switching electrically
Inform
Manitowoc Crane Care
Malfunction Cause Solution
Turntable locking or unlock-
ing function not working
Control unit fuse blown Replace the blown fuse;
à p. 14 - 75