Rigging/Unrigging The Counterweight; Information On Rigging - Manitowoc Grove GMK4090 Operating Manual

12.9
12.9.1
When rigging
Operating manual
GMK4090

Rigging/unrigging the counterweight

Information on rigging

Rigging the counterweight is a challenging task. Only experienced person-
nel who are familiar with the valid accident prevention regulations are
authorised to sling counterweight sections and instruct the crane operator.
When the engine is running for crane operation, the rigging personnel may
only climb on the truck crane when the slewing gear is switched off and the
slewing gear brake is applied.
The crane operator and rigging personnel must maintain visual contact dur-
ing the rigging process.
The rigging process for a single counterweight section is described. Pro-
ceed in the same manner when rigging other counterweight sections or
blocks.
As the crane operator
•
Lift the counterweight section onto the counterweight platform as
described in the section Assembling counterweight combination .
•
Now inform the rigging personnel that they can climb on the truck crane.
As the rigging personnel
•
Do not climb on the truck crane until permitted by the crane operator.
•
Position the counterweight if necessary.
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12.9 Rigging/unrigging the counterweight
Rigging work
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