Hummer H1 Service Manual page 393

6-10 Wheels and Tires/Central Tire Inflation System (CTIS)
RIM
EDGE
Figure 6-17: Leak Check Areas
CORE HOUSING
INSERT
WHEEL HALF STUD REPLACEMENT
Removal
1. Remove wheel from vehicle.
2. Place wheel in tire inflation cage.
WARNING: Ensure the tire is totally deflated before
removing wheel locknuts. Failure to follow proper
safety precautions may result in serious injury or death.
3. Remove valve core from valve bore and deflate tire. Run a
wire through valve bore to ensure it is not plugged
(Figure 6-18).
WHEEL
LOCKNUT
TIRE
Figure 6-18: Valve Core and Valve Bore
NOTE: When replacing broken rim stud(s), replace studs on
both sides of broken stud(s).
4. When tire is fully deflated, loosen wheel locknuts on each
side of the broken stud(s). If you hear escaping air, do not
proceed. Wait until the sound stops and recheck valve
bore. When you are certain tire is fully deflated, proceed
to remove wheel locknut. Discard locknut.
5. Drive studs out of inner rim. Discard studs (Figure 6-19).
Cleaning and Inspection
1. Using wire brush, clean remaining studs. Clean all dirt and
foreign material from rim with soap and water and allow
to air dry.
WARNING: Never use wheel assemblies with studs
that are damaged, loose, or have damaged threads.
Damaged studs can cause improper assembly, which
could cause individual fasteners to fail. Any of these sit-
uations may result in serious injury or death.
_______________
VALVE CORE
VALVE
BORE
®