Manitowoc Grove GMK4090 Operating Manual page 812

Rigging work
12.9 Rigging/unrigging the counterweight
Automatic mode
rigging
12 - 108
While the automatic mode is being executed, you can always
– Cancel the automatic mode;
– Interrupt the automatic mode by letting go of the control lever. After mov-
ing the lever in the displayed direction once more, the automatic mode is
continued.
Pre-tensioning
When the symbol (5) is red, you must pre-ten-
sion the counterweight. Slewing is blocked –
symbol display (2).
•
Select and confirm the symbol (3) until the
symbol (4) becomes green. The slewing is
released – display symbol (1).
à
Cancel automatic mode , p. 12 - 111.
prerequisites
– The counterweight combination must be
assembled.
– The lifting cylinders must be fully retracted –
symbol (4) green.
– The slewing gear is switched – symbol (1)
green.
– The superstructure must be in the rigging
range:
– Symbol (3) active,
– Symbol (2) displayed.
3 302 736 en Operating manual
GMK4090