Malfunctions in driving mode
8.4 Troubleshooting
8 - 24 3 302 690 en Operating manual
GMK4100L-1
23.11.2017
8.4.6 Malfunctions of the steering
H
Further information; Ã Warning messages on the CCS display, p. 8 - 13.
Malfunction Cause Solution
Steering wheel hard to
turn, grating noises when
steering
Lights 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 failure, for
example, pump defective
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
approx. 5 km/h (3 mph)
Slow down or stop the
truck crane
Separate steering cannot
be switched off
Current speed above
approx. 5 km/h (3 mph)
Separate steering not
working
Control unit fuse blown Replace blown fuses;
à p. 8 - 49
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