Manitowoc GROVE GMK5150L User Manual

Malfunctions during crane operation
14.4 Troubleshooting
14 - 20 3 302 709 en Operating manual
GMK5150L
12.01.2018
14.4.7 Malfunctions on the slewing gear
Operation with the
teleautomation menus is
blocked
Diverse errors, e.g. length
indicator failed
Retract main boom with the
emergency program;
à p. 14 - 33
The main boom can no
longer be telescoped; the
telescoping cylinder can
no longer be moved
The hydraulic supply is
interrupted
Inform
Manitowoc Crane Care
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
Malfunction Cause Solution
Malfunction Cause Solution
Slewing gear not func-
tioning
Slewing gear off, lamp in
button lights up dimly
Switch on the slewing gear;
à p. 11 - 116
Superstructure locked Unlock superstructure;
à p. 11 - 15
Dead man's switch system
not engaged.
Press 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
message is displayed
Acknowledge error mes-
sage once;
à p. 14 - 8 –
if error persists, notify
Manitowoc Crane Care
Rigging mode for position
0° to the rear or 180° to the
front
confirmed.
Confirm rigging mode for a
slewing range
Counterweight not
pre-tensioned.
Pre-tension counterweight;
à p. 12 - 105.
In case of emergency –
shutdown bypassed;
p. 14 - 49
Slewing 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

Manitowoc GROVE GMK5150L Specifications

General

Brand	Manitowoc
Model	GROVE GMK5150L
Category	Construction Equipment
Language	English