Heavy Fabricated Counterweight Installation; Heavy Fabricated Counterweight Removal - Manitowoc Grove RT9150E Operator's Manual

SET-UP AND INSTALLATION

Heavy Fabricated Counterweight Installation

Read and understand the following when removing and
installing the counterweight or counterweight stand, to
avoid serious injury or death.
• Outriggers must be fully extended and set and crane
level before installation or removal of counterweight.
• Lifting operations are not permitted with any
counterweight on the carrier deck except for the
removal or installation of the counterweight.
• Boom is not permitted over carrier deck when the
boom angle is less than 30° and any counterweight is
positioned on deck.
• Hookblock is not permitted to come in contact with
counterweight during removal or installation.
• Travel is not permitted with any counterweight on
carrier deck.
CAUTION
Counterweight assembly must be completed on the
ground; not on the carrier counterweight stand.
Outrigger boxes must be installed and outrigger beams
must be fully extended.
1. Rig the crane with five parts of line.
2. The heavy 63,000
counterweight may be lifted in one of the following boom
configurations.
Boom Configuration
0-0-0-0-50
0-0-0-0-0
(20 ft radius)
3. Enter RCL code 1100. Refer to RCL Main Menu, page 3-
75.
4. Connect sling assembly to the 24,000 lb (10,886 kg)
counterweight insert using the lifting eyes on the insert.
5. Lift and place the counterweight insert into the standard
fabricated counterweight.
6. Connect sling assembly to the heavy fabricated
counterweight assembly using the installation lifting
holes (Figure 4-14).
4-14
DANGER
lb (28,576 kg) fabricated
0-0-0-50-0
Published 2-23-2017, Control # 644-00
RT9150E OPERATOR MANUAL
7. Lift and place the counterweight assembly onto the
carrier stands.
8. Swing turntable to place the boom over the rear of the
crane.
9. Set the turntable lock pin in the down position.
10. Using the ECOS display lower the counterweight
cylinders into the tubes in the counterweight, refer to
RCL Main Menu, page 3-75.
11. Rotate the cylinders to lock into the counterweight.
12. Raise the counterweight until the display indicates the
counterweight is pre-tensioned.
13. Using the ECOS display, extend the locking cylinders
until the display indicates the counterweight is locked in
place.

Heavy Fabricated Counterweight Removal

1. Rig the crane with five parts of line.
2. The 63,000 lb (28,576
counterweight may be lifted in one of the following boom
configurations.
Boom Configuration
0-0-0-0-50
0-0-0-0-0
(20 ft radius)
3. Enter RCL code 1100. Refer to RCL Main Menu, page 3-
75.
4. Swing turntable to place the counterweight over the front
of the crane.
5. Set the turntable lock pin in the down position.
6. Using the ECOS display, retract the locking cylinders
until the display indicates the cylinders are fully
retracted.
7. Lower the counterweight until the display indicates the
counterweight is fully lowered onto the stands.
8. Rotate the cylinders to unlock from the counterweight.
9. Raise the counterweight cylinders from the tubes in the
counterweight.
10. Connect sling assembly to the heavy counterweight
assembly using the installation lifting holes.
11. Lift and remove the counterweight from the carrier
stands.
12. Place the counterweight on the ground.
13. Disassemble the counterweight, if necessary.
kg) heavy fabricated
0-0-0-50-0