UniCarriers 1F1 Operator's Manual page 106

4. Cushion: Loosen the retainer nut
one or two turns each by turning it
counterclockwise.
!
WARNING
• Do not remove retainer nut until the rear tires are raised off
the ground.
5. Jack up the lift truck slowly until the rear tires clear the ground.
Support the truck by putting wood blocks under each side of the
rear end of the frame as shown on page 101.
!
WARNING
• Stop jacking up the lift truck when the tires are slightly raised
off the ground. Jacking up the lift truck excessively high
could cause it to roll over.
• Use a jack with a capacity of 4.0 tons or more.
• Use hardwood blocks that do not slip easily and are strong
enough to withstand the lift truck weight. Do not use broken
or cracked blocks or metal blocks that slip easily.
6. Pneumatic: Remove the wheel nuts and the rear tire. Install
replacement tire.
6. Cushion: Remove the retainer nut and the rear tire. Install
replacement tire.
!
• Pneumatic: When removing the tire from the wheel rim, do
not remove the rim set bolts and nuts before releasing the
air.
• Never get under the lift truck while it is supported only by the
wood blocks.
7. Pneumatic: Reinstall the wheel nuts and temporarily tighten in the
sequence shown on page 103.
7. Cushion: Reinstall the retainer nut and tighten (refer to chart on
page 105).
8. Remove the wood blocks and lower the lift truck slowly until the
rear tires touch the ground. Remove chocks and jack.
9. Pneumatic: Tighten the wheel nuts to the specified torque in a
crisscross fastion (refer to page 105).
10. Pneumatic: Adjust the tire pressure to the value specified (refer to
page 100).
11. After replacing a tire, drive the lift truck and check the tightening
torque of each wheel nut again.
104
WARNING