SET-UP AND INSTALLATION GRT8100 OPERATOR MANUAL
4-38 Published 3-25-2020, Control # 595-10
Installing Optional Counterweight Slab
1. Position crane on a firm level surface. Fully extend and
set outriggers.
2. Operate crane to place slab on rear deck centering pins.
NOTE: Pinned slab weighs 2,268 kg (5,000 lb) and
increases 9,979 kg (22,000 lb) Counterweight to
12,247 kg (27,000 lb).
3. Follow operating instructions for Remove and Install
Counterweight on previous page, except DO NOT
remove lock pins and retaining pins from lift cylinders
and counterweight.
NOTE: Operate left or right cylinder as needed to align
holes in slab and counterweight.
4. Remove attach pins from slab stowage bushings (2) and
install them in counterweight lugs (1).
5. Push in on pins and turn to lock pin in notch.
6. Raise and lock counterweight and slab assembly in
normal operating position.
7. Adjust three counterweight leveling bolts and jam nuts to
reduce movement between counterweight and slab.
Maintain a gap of 2 mm - 3 mm to allow for easy pin
removal when counterweight is lowered.
8. Select proper counterweight operating code on the RCL.
9. Crane is now ready for operation with counterweight
slab installed.
Removing Optional Counterweight Slab
1. Follow operating instructions for Remove and Install
Counterweight on previous page, except DO NOT
remove lock pins and retaining pins from lift cylinders
and counterweight.
NOTE: Pinned slab weighs 2,268 kg (5,000 lb). Removal
reduces counterweight from 12,247 kg (27,000 lb) to
9,979 kg (22,000 lb).
2. Lower counterweight and slab assembly to rear deck
centering pins.
3. Push in on pins and turn to remove from counterweight
lugs (1).
4. Install pins in slab stowage bushings (2).
5. Raise and lock counterweight in normal operating
position.
6. Operate crane to remove slab from rear deck to
transport vehicle.
7. Select proper counterweight operating code on the RCL.
8. Crane is now ready for operation with counterweight
slab removed.
DANGER
Travel is not permitted with removable counterweight slab
on carrier deck.