Manitowoc GROVE GMK5150L User Manual

Malfunctions during crane operation
14.4 Troubleshooting
14 - 18 3 302 709 en Operating manual
GMK5150L
12.01.2018
14.4.5 Malfunctions on the derricking gear
Malfunction Cause Solution
Derricking gear not work-
ing or malfunctions
Derricking gear off, lamp in
button lights up dimly
Switching on the derrick-
ing gear;
à p. 11 - 85
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 - 19
Control unit fuse blown Replace the blown fuse;
à p. 14 - 75
Control unit faulty, error mes-
sage is displayed
Acknowledge error mes-
sage once;
à p. 14 - 8 – if
error persists, notify
Manitowoc Crane Care
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 - 58
Control unit fuse blown Replace the blown fuse;
à p. 14 - 75
Derricking function not
working
Function disabled by CCS If required, acknowledge
error message once and
briefly turn off the ignition –
it if occurs again, notify
Manitowoc Crane Care
Control unit fuse blown Replace the blown fuse;
à p. 14 - 75
Derricking not possible,
or only at low speed
Speed limited Increase limit;
à p. 11 - 125
Derricking cannot be
switched off
CCS malfunction Emergency stop switch;
à p. 14 - 1
No response to control
lever movements
CCS malfunction for operat-
ing elements in the crane cab
Unrig using hand-held
control;
à p. 14 - 43

Manitowoc GROVE GMK5150L Specifications

General

Brand	Manitowoc
Model	GROVE GMK5150L
Category	Construction Equipment
Language	English