Manitowoc GROVE GMK 6400 User Manual

Malfunctions in driving mode
7.7 Troubleshooting
7 - 30 3 112 993 en Operating manual GMK 6400
12.07.2013
7.7.3 Malfunctions in the transmission
7.7.4 Malfunctions in the hydraulic drive (MegaDrive)
Malfunction Cause Remedy
Transmission only shifts up
to second gear
Gear oil too hot
à On the transmission,
p. 7 - 7
Transmission oil colder
than approx. –7°C (20°F)
Wait until transmission oil
temperature rises
Transmission no longer
shift up at speeds over
approx. 20 km/h (12 mph)
A locking procedure is not
yet completed
Lock the differential locks
Transmission not shifting Retarder switched on
à Switching off the addi-
tional brakes
, p. 5 - 45
The transmission does not
react to the operating ele-
ments
Fuse F1/6 on carrier blown Replace blown fuse;
à p. 7 - 19
Symbol
A is red Transmission cannot shift
down since the maximum
permissible engine speed
would otherwise be
exceeded
Slow down the truck crane
until the symbol goes out
Driving display has a mal-
function
The electronic gear system
has detected a malfunction
à Procedure during trans-
mission malfunctions
,
p. 7 - 41
Transmission diagnostics
plug not working
Fuses F1/2, F4/7 blown Replace blown fuse;
à p. 7 - 19
Malfunction Cause Remedy
– Lights up – Loss of oil Checking the hydraulic
lines
– Solenoid valve faulty Manitowoc Crane Care
must be notified
– Malfunction in the elec-
tronics
Switch off the ignition and
switch it back on again
after around 15 seconds.
If error persists, notify
Manitowoc Crane Care
The hydraulic drive cannot
be switched on
Current speed over approx.
20 km/h (12 mph)
Slow down or stop the
truck crane
Fuse F9/1, F9/2, F9/3, F9/4,
F9/5, F9/6 or F9/7 blown
Replace blown fuse;
à p. 7 - 19

Manitowoc GROVE GMK 6400 Specifications

General

Brand	Manitowoc
Model	GROVE GMK 6400
Category	Construction Equipment
Language	English