Manitowoc GROVE GMK 6400 User Manual

Malfunctions in driving mode
7.7 Troubleshooting
7 - 32 3 112 993 en Operating manual GMK 6400
12.07.2013
7.7.6 Steering malfunctions
Malfunction Cause Remedy
Steering wheel hard to
turn, grating noises when
steering
Oil level in the hydraulic oil
tank too low
Check hydraulic oil level;
à Maintenance manual
Symbol
d or e is red Oil level in the hydraulic oil
tank too low
Stop and check whether oil
has run out
à If oil has leaked out,
p. 5 - 38
à If no oil has leaked out,
p. 5 - 38
Steering circuit has failed,
e.g. pump faulty
Symbol
d and e are red Both steering circuits have
failed
The truck crane cannot be
driven any further, since it
can no longer be steered.
Separate steering cannot
be activated
Current speed over approx.
5 km/h (3 mph)
Slow down or stop the
truck crane
Separate steering cannot
be switched off
Current speed over approx.
5 km/h (3 mph)
Separate steering not
working
Fuse F7/1, F7/2 or F7/3
blown
Replace blown fuse;
à p. 7 - 20
Separate steering not
working and the
ECOS dis-
play shows an error mes-
sage
ECOS malfunction Read out error messages
(à p. 7 - 35) and notify
Manitowoc Crane Care

Manitowoc GROVE GMK 6400 Specifications

General

Brand	Manitowoc
Model	GROVE GMK 6400
Category	Construction Equipment
Language	English