Rigging work
11.9 Rigging/unrigging the counterweight
11 - 68 3 302 633 en Operating Instructions GMK5250L
27.09.2017
As the crane operator
• Use only the Raise/lower hoist or Raise/lower derricking gear movements for
setting down the counterweight.
Execute the movement as slowly as
possible.
Notify the rigging personnel if the superstructure need to be slewed for
positioning the counterweight.
• Set down the counterweight section.
As the rigging personnel
• Remove the lifting gear and set down the ends so that the clearance is
clearly visible to the crane operator.
• Leave the slewing range of the counterweight and the load.
As the crane operator
• Perform the Raise hoist movement at the lowest possible speed until the
lifting gear is free.
When unrigging As the crane operator
• Lift the lifting gear over the counterweight section.
• 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.
• Sling the counterweight section at the provided slinging points.
As the crane operator
• Wind on the hoist rope until the lifting gear is tensioned – do not continue
lifting the counterweight section.
As the rigging personnel
• Leave the slewing range of the counterweight and the load.
As the crane operator
• Lift the counterweight section off the counterweight platform.
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