Manitowoc GROVE GMK 6400, Operating Manual

Page: 783 / 960

Rigging work
12.7 Rigging/unrigging the counterweight
Operating manual GMK 6400 3 112 993 en 12 - 67
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2
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7.
201
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12.7.6 Assembling counterweight combination
Set down 15 t (33,069 lbs) base plate
•
Place the 15 t base plate ( 1 ) so that it fits into
the guides ( 2 ).
For larger counterweight combinations, now
set additional counterweight sections onto the
15 t base plate.
s
G
Danger of overturning when slewing with a rigged counterweight
When a counterweight version is rigged, check whether slewing is permit-
ted with the current rigging mode (outrigger span, working radius). Correct
the rigging mode if necessary;
à
Slewing with rigged counterweight
,
p. 12 - 89.
G
Danger of crushing when setting down the counterweight sections
Make sure the helpers keep a sufficient distance away from the counter-
weight sections with any parts of their body when setting down the coun-
terweight sections.
Remove all objects from the counterweight platform that could become
jammed or crushed!
G
Danger of crushing when slewing the superstructure
Anyone who climbs onto the carrier using one of the access ladders is
within the slewing range of the superstructure.
Make sure nobody uses the access ladders (e.g. helpers) while you lift a
section onto the carrier.
G
Risk of accident due to falling counterweight sections
Only attach the counterweight sections to the appropriate slinging points
and use lifting gear of sufficient lifting capacity.
The counterweight sections should be lifted only one at a time. The slinging
points are not designed for hoisting stacked counterweight sections.