Hummer H1 Service Manual page 387

6-4 Wheels and Tires/Central Tire Inflation System (CTIS)
13. Remove O-ring from insert. Discard O-ring.
14. Remove O-ring seal from inner rim half. Discard O-ring
seal.
15. Remove tire from inner rim half.
WARNING: Balance weights contain lead. Wash hands
after handling.
16. Remove balance weights from rim halves. Discard balance
weights.
17. Lay tire flat.
WARNING: To avoid injury, ensure runflat compres-
sor strap is centered around runflat.
18. Position runflat compressor on an outer edge of runflat
with handle assembly facing up and strap centered around
runflat (Figure 6-5).
CRANK
HANDLE
RUNFLAT
Figure 6-5: Runflat Compressor
Operation
NOTE: Compress runflat by rotating the handle assembly in a
clockwise direction. Rotate handle assembly counterclockwise
to loosen.
19. Using runflat compressor, compress runflat.
NOTE: It may be necessary to use a tire spoon and tire lube to
remove runflat from tire. When using runflat compressor, it
may be necessary to remove handle before removing runflat.
20. Remove runflat from tire and remove runflat compressor
from runflat (Figure 6-6).
RUNFLAT
COMPRESSOR
J–39250
COMPRESSOR
STRAP
Figure 6-6: Runflat Appearance After Removal
Inspection and Cleaning
CAUTION: Do not reuse a tire which has been run flat without
thoroughly inspecting for damage. Failure to follow these in-
structions may result in damage to equipment.
1. Remove any existing lubricant that has been previously
applied to the inside of the tire using a mild detergent soap
and water.
2. Dry all wheel and tire parts. Ensure inside of tire is free of
any runflat lubricant, dirt, debris, rust, or moisture.
WARNING: Thorough tire inspection is critical. Con-
tinued use of worn or damaged tires could result in
equipment damage, serious injury or death.
3. Inspect inside of tire for cord or belt separation and inner
liner damage. Replace tire if damaged.
4. Inspect tire bead for abrasions. Replace tire if damaged.
5. Check for protruding objects inside tire which may not be
visible from outside. If tire is punctured yet repairable,
repair with internal (05710215) or external (05710216)
tire repair kit.
6. Check tread depth on tire. Tread should not be worn below
level of wear bars (Figure 6-7). Markings on the sides of
the tires (e.g., the letters "TWI" or a triangle) show the
location of wear bars. Replace tire if tread is worn below
wear bars or 3/32 inch (2.38 mm).
7. Inspect runflat for splitting, cracking, wear, or excessive
chafing. Damaged runflat performance will be non-
existent or greatly reduced. Replace runflat if damaged
(Figure 6-6).
_________________
RUNFLAT
®