Malfunctions Of The Steering - Manitowoc Grove GMK6300L Operating Manual

Malfunctions in driving mode
7.6 Troubleshooting
7.6.6
Malfunction
Steering wheel hard to turn,
grating noises when steering
d e
Symbol or is red
d e
Symbol and are red
Separate steering cannot be
activated
Separate steering cannot be
switched off
Separate steering not
working
Separate steering not work-
ing and the ECOS display
shows an error message
7 - 32

Malfunctions of the steering

Oil level in the hydraulic oil
tank too low
Oil level in the hydraulic oil
tank too low
Steering circuit has failed,
e. g. pump faulty
Both steering circuits have
failed
Current speed above approx.
5 km/h (3 mph)
Current speed above approx.
5 km/h (3 mph)
Fuse F7/1, F7/2 or F7/3 blown
ECOS malfunction
Cause
3 112 xxx en
Remedy
Check hydraulic oil level;
à
Maintenance Manual .
Stop and check whether oil
has run out
à
If oil has escaped , p. 5 - 40
à
If no oil has escaped , p. 5 - 40
The truck crane cannot be
driven any further, since it can
no longer be steered!
Slow down or stop the truck
crane
Replace blown fuses;
à
p. 7 - 20
Read out error messages
à
( p. 7 - 35) and notify
Manitowoc Crane Care
Operating Manual GMK6300L