Manitowoc Grove GMK4100L-1 User Manual

Malfunctions during crane operation
14.4 Troubleshooting
Operating manual 3 302 690 en 14 - 17
GMK4100L-1
23.11.2017
14.4.6 Malfunctions in the telescoping mechanism
Malfunction Cause Solution
Telescoping mechanism
not working or
malfunctioning
Telescoping mechanism off,
lamp in button lights up dimly
Switch on the telescoping
mechanism;
à p. 11 - 89
Dead man's switch system
not actuated
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 - 73
Control unit faulty, error
message is displayed
Acknowledge error mes-
sage once;
à p. 14 - 7 – if
error persists, notify
Manitowoc Crane Care
Extending function not
working
Control unit fuse blown Replace the blown fuse;
à p. 14 - 73
RCL shutdown, lamp lights up Leave the shutdown
range;
à p. 11 - 58
Lifting limit switch
approached, lamp lights up
Leave the shutdown
range, retract boom
Retracting function not
working
Insufficient lubrication Lubricate 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 - 7 – if
error persists, notify
Manitowoc Crane Care
The swing-away lattice is not
in position for telescoping
à Lattice extension operat-
ing manual
Control unit fuse blown Replace the blown fuse;
à p. 14 - 73
Telescoping not possible
or only possible at very
low speed
Speed limited Increase limit;
à p. 11 - 125
s

Manitowoc Grove GMK4100L-1 Specifications

General

Brand	Manitowoc
Model	Grove GMK4100L-1
Category	Construction Equipment
Language	English