Manitowoc GROVE GMK 6400 User Manual

Malfunctions during crane operation
14.4 Troubleshooting
Operating manual GMK 6400 3 112 993 en 14 - 15
12.07.2013
14.4.5 Malfunctions in the derricking gear
s
Malfunction Cause Solution
Derricking gear not working
or malfunctions
Derricking gear off, lamp in
button lights up dimly
Switching on the derricking
gear;
à p. 11 - 64
Dead man's switch not actu-
ated
Press the dead man's switch.
Emergency stop switch on
à Resetting the emergency stop
switch
, p. 4 - 26
Fuses F1/1, F1/2, F2/2,
F2/3, F3/1, F3/2, F3/5, F3/6
blown
Replace blown fuse;
à p. 14 - 5
Fuse blown on circuit board Replace blown fuse;
à p. 14 - 7
Control unit faulty, error mes-
sage is displayed
Acknowledge error message
once;
à p. 14 - 32 – if error
persists, notify Manitowoc
Crane Care
Fuse F3/7 blown Replace blown fuse;
à p. 14 - 6
Lowering function not
working
Lifting limit switch
approached, lamp
# lights up
Leave the shutdown range
and lower the auxiliary hoist
RCL shutdown, lamp
+ lights
up
Leave the shutdown range;
à p. 11 - 37
Fuse F3/3 blown Replace blown fuse;
à p. 14 - 9
Derricking function not
working
Function disabled by ECOS If necessary, acknowledge
error once and briefly turn off
the ignition – if error persists,
notify Manitowoc Crane Care
Fuse RCL F6 blown Replace blown fuse;
à p. 14 - 11
Fuse F3/3 blown Replace blown fuse;
à p. 14 - 9
Derricking not possible, or
only at low speed
Speed limited Increase limit;
à p. 11 - 107
Derricking cannot be
switched off
ECOS malfunction Emergency stop switch;
à p. 14 - 1
No response to control lever
movements
ECOS malfunction concerning
operating elements in the
crane cab
Unrig using hand-held con-
trol;
à p. 14 - 55

Manitowoc GROVE GMK 6400 Specifications

General

Brand	Manitowoc
Model	GROVE GMK 6400
Category	Construction Equipment
Language	English