Malfunctions during crane operation
14.4 Troubleshooting
14 - 20 3 302 819 en Operating manual
GMK3060
13.12.2018
14.4.7 Malfunctions in the slewing gear
Operation with the
teleautomation menus
is blocked
Diverse errors, e.g. length indi-
cator 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 inter-
rupted
Manitowoc Crane Care must
be notified
No response to control
lever movements
CCS malfunction for operating
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 - 122.
Superstructure locked Unlock the superstructure;
à p. 11 - 18.
Dead man's switch 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
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 - 70.
In case of emergency –
override the shutdown;
p. 14 - 50
Slewing function not
working
Function disabled by CCS If required, acknowledge
error message once and
briefly switch off the ignition –
it if occurs again, notify
Manitowoc Crane Care
To Next Page
Loading...
