Rigging work
12.9 Rigging/unrigging the counterweight
12 - 86 3 302 690 en Operating manual
GMK4100L-1
23.11.2017
The Counterweight menu opens.
Errors and warning messages can be shown
for operation.
Extending/
retracting the
lifting cylinders
This section describes how to operate the lifting cylinders manually,
– for correcting the displayed rigging mode and
– for pre-charging the counterweight afterwards.
H
Always lift and lower the counterweight in automatic mode, otherwise
slewing with extended lifting cylinders will be blocked;
à Automatic
mode rigging
, p. 12 - 88, Ã Automatic mode unrigging, p. 12 - 90.
1 Slewing blocked – pre-clamp the counter-
weight;
à p. 12 - 88.
2 Slewing and counterweight hoist unit
blocked. Lock the
rear counterweight
platform;
à p. 12 - 95.
3 Contact
Manitowoc Crane Care.
4 If the pre-tensioning pressure continues to
drop, the message (1).
S
Risk of damage to the counterweight
With the override switch actuated, the functions are always enabled.
Slew the superstructure only when the lifting cylinders are fully retracted.
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