Manitowoc Grove GMK 4100L-1, Operating Manual

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Rigging work
12.9 Rigging/unrigging the counterweight
Operating manual 3 302 690 en 12 - 69
GMK4100L-1
2
3
.1
1.
201
7
12.9 Rigging/unrigging the counterweight
Counterweight
display rigged For driving the counterweight must either be stored on the
rear
/
front
counterweight platform, or taken off;
à
p. 6 - 1,
à
p. 12 - 69.
•
Check that the symbol ( 1 ) has gone out.
•
if the symbol ( 1 ) is displayed;
à
Setting down counterweight for driving
,
p. 12 - 92.
12.9.1 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
during the rigging process.
The rigging process for a single counterweight section is described.
Proceed in the same manner when rigging other counterweight sections
or blocks.
When rigging 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.
s