Malfunctions Of The Steering - Manitowoc Grove GMK4100L-1 Operating Manual

Malfunctions in driving mode
8.4 Troubleshooting
8.4.6
Malfunction
Steering wheel hard to
turn, grating noises when
steering
One of the lamps lights up
Lights up (yellow)
lights up (red)
Symbol is displayed
Separate steering cannot
be activated
Separate steering cannot
be switched off
Separate steering not
working
H
8 - 24

Malfunctions of the steering

Lights can light up; oil level
in the hydraulic oil tank too
low
Steering circuit failure, for
example, pump defective
Steering malfunction
Steering system warning
Hydraulic oil filter dirty
Current speed above
approx. 5 km/h (3 mph)
Current speed above
approx. 5 km/h (3 mph)
Control unit fuse blown
Further information;
Cause
à
Warning messages on the CCS display , p. 8 - 13.
3 302 690 en
Solution
Check the hydraulic oil
à
Maintenance
level;
manual .
Then drive at low speed to
the nearest repair shop and
have the cause checked
Stop and perform required
à
inspections; p. 8 - 6.
Driving possible – observe
the subsequent informa-
tion for the next stop;
à
p. 8 - 7.
The steering is defective;
stop as quickly as possible
and observe the subse-
quent information;
à
p. 8 - 7
Replace the hydraulic oil
à
Maintenance
filter;
manual
Slow down or stop the
truck crane
Replace blown fuses;
à
p. 8 - 49
Operating manual
GMK4100L-1