Group 34, Uprights
34-7-4 • Fork and Carriage Removal and Replacement SM 765, Nov ’06
WARNING
!
Never attempt to move or align the carriage
or bearings by hand. Use a pry bar.
6. Lower the upright until the inner rail clears all of the
carriage rollers.
N
TE
If the rail or bearings bind, raise the upright,
back away from the carriage and check to be
sure the carriage rollers are installed prop-
erly.
7. When the inner rail has cleared the carriage rollers,
continue to lower the upright until the lift cylinders
are lowered completely.
8. Reset the truck in a safe position:
• Ignition off
• Parking brake applied
• Directional lever in neutral
• Forks completely lowered
• Block steer wheels.
9. Reinstall the carriage lift chains to the base of the
carriage.
• Set anchor bolts so that no twist develops in the
chains.
• Anchor pin heads must be pointing to the inside of
the upright.
• Use new cotter pins.
IMP
RTANT
Always use new anchor pins when replacing
chain sets.
10. Reconnect the hoses and mounting strap to the car-
riage auxiliary component if the carriage is so
equipped.
• Lubricate all O-rings with a light coating of system
hydraulic fluid or a compatible oil.
• Use two wrenches to tighten hose fittings to pre-
vent hoses from twisting.
• See Group 40 for hydraulic fitting tightening pro-
cedures.
11. Adjust carriage height according to Section 6 and
chain tension according to Section 3.
12. Remove the “C” clamp from the pallet and check the
operation of the carriage and the upright. Carefully
check for oil leaks. Make sure the carriage and
upright work smoothly and correctly before returning
the truck to service.
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