Manitowoc Grove GMK4100L-1

Malfunctions during crane operation
14.4 Troubleshooting
Operating manual 3 302 690 en 14 - 13
GMK4100L-1
23.11.2017
14.4 Troubleshooting
14.4.1 Malfunctions on the engine
H
Observe all specifications in the section Malfunctions on the engine;
à p. 8 - 19.
14.4.2 Malfunctions on the main hoist/auxiliary hoist
Malfunction Cause Solution
Engine does not start –
Starter does not turn
Ignition switched on in the
driver's cab
Switch off the ignition in
the driver's cab;
à p. 10 - 1
Symbol red Engine malfunction
à Malfunctions on the
engine
, p. 8 - 19
Malfunction Cause Solution
Main hoist not working or
malfunctioning
Main hoist off, lamp in button
lights up dimly
à Switching on the main
hoist
, p. 11 - 76,
à Switching on the
auxiliary hoist
, p. 11 - 79
Dead man's switch 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 mes-
sage is displayed
Acknowledge error mes-
sage once;
à p. 14 - 7 – if
error persists, notify
Manitowoc Crane Care
Only the lifting function
works
Lowering limit switch
approached
Leave the shutdown
range and raise the hoist.
s