Manitowoc GROVE GMK3060 User Manual

Malfunctions during crane operation
14.4 Troubleshooting
Operating manual 3 302 819 en 14 - 19
GMK3060
13.12.2018
14.4.6 Malfunctions in the telescoping mechanism
Malfunction Cause Solution
Telescoping mechanism
not working or malfunc-
tioning
Telescoping mechanism off,
lamp in button lights up dimly
Switch on the telescoping
mechanism;
à p. 11 - 95.
Dead man's switch system not
actuated
Press dead man's switch
Emergency stop switch
engaged
à Resetting the emergency
stop switch, p. 4 - 20
Control unit fuse blown Replace blown fuse;
à p. 14 - 71.
Control unit faulty, error
message is displayed
Acknowledge error mes-
sage once;
à p. 14 - 8 –
if error persists, notify
Manitowoc Crane Care
Extending function not
working
Control unit fuse blown Replace blown fuse;
à p. 14 - 71.
RCL shutdown, lamp lights up Leave the shutdown range;
à p. 11 - 62
Lifting limit switch approached,
lamp lights up
Leave the shutdown range,
retract boom
Retracting function not
working
Insufficient lubrication Lubricate the main boom;
à Maintenance manual
Main boom is not steep enough Leave the shutdown range
and raise the boom
Telescoping function not
working
Function disabled by CCS,
error message is displayed
Acknowledge error mes-
sage once;
à p. 14 - 8 –
if error persists, notify
Manitowoc Crane Care
Control unit fuse blown Replace blown fuse;
à p. 14 - 71.
Telescoping not possible
or only possible at very
low speed
Speed limited Increase the limit;
à p. 11 - 131.
Telescoping cannot be
switched off
Malfunction in crane control Emergency stop switch;
à p. 10 - 12
s

Manitowoc GROVE GMK3060 Specifications

General

Brand	Manitowoc
Model	GROVE GMK3060
Category	Construction Equipment
Language	English