Malfunctions In The Counterweight Hoist Unit - Manitowoc Grove GMK6300L Operating Manual

14.4.9
Malfunction
Counterweight hoist unit not
working
Error symbol (!) is displayed
Retract/extend lifting
cylinder not working
Extend lifting cylinder not
working
Operating Manual GMK6300L

Malfunctions in the counterweight hoist unit

Emergency stop switch
engaged
In the Hoist submenu, the
symbol Auxiliary hoist lock
display lights up.
Fuse F1/1, F1/7
Control unit faulty, error mes-
sage is displayed
Function disabled by ECOS
Electronics has identified an
error
Superstructure in the interme-
diate position rigging range
Superstructure outside of
rigging range
Counterweight rigged and
Move lifting cylinders position
reached
Counterweight unrigged and
Lift/lower counterweight posi-
tion reached
14.4 Finding and eliminating malfunctions
Cause
3 112 xxx en
Malfunctions during crane operation
Remedy
à
Resetting the emergency stop
switch , p. 10 - 22
Mechanically lock the
auxiliary hoist correctly;
à
Extending the locking
cylinders , p. 6 - 99
Replace the blown fuse;
à
p. 14 - 6
Acknowledge error message
à
once; p. 14 - 36 – if
error persists, notify
Manitowoc Crane Care
If necessary, acknowledge
error once and briefly turn off
the ignition – if error persists,
notify Manitowoc Crane Care
Slew to Move lifting cylinders
or Lift/lower counterweight
à
position; p. 9 - 74
Slew into the rigging range
Slew to Lift/lower counter-
weight position
Slew to Move lifting cylinders
position
14 - 23