Manitowoc GROVE GMK5150L, Operating Manual

Page: 380 / 1040

Malfunctions in driving mode
8.4 Troubleshooting
8 - 24 3 302 709 en Operating manual
GMK5150L
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2
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8.4.6
Malfunctions of the steering
H
Further information;
à
Warning messages on the CCS display
, p. 8 - 13.
Malfunction Cause Solution
Steering wheel hard to
turn, grating noises when
steering Lamps can light up
Oil level in the hydraulic oil
tank too low Check the hydraulic oil
level;
à
Maintenance
manual
.
Then drive at low speed to
the nearest repair shop and
have the cause checked
One of the lamps lights up Steering circuit has failed,
e. g. pump faulty Stop and perform required
inspections;
à
p. 8 - 6.
Lights up (yellow) Steering malfunction Driving possible – observe
the subsequent informa-
tion for the next stop;
à
p. 8 - 7.
lights up (red) Steering system warning The steering is defective;
stop as quickly as possible
and observe the subse-
quent information;
à
p. 8 - 7
Symbol is displayed Hydraulic oil filter dirty Replace the hydraulic oil
filter;
à
Maintenance
manual
Separate steering cannot
be activated Current speed above about
5 km/h (3 mph) Slow down or stop the
truck crane
Separate steering cannot
be switched off Current speed above about
5 km/h (3 mph)
Separate steering not
working Control unit fuse blown Replace blown fuses;
à
p. 8 - 49