SECTION 16
TIRE INFLATION
STAGES OF INFLATION
Review the following descriptions and diagrams carefully.
Refer to them as necessary during, bead sealing, bead
seating, and inflation to verify that you are proceeding
properly and safely.
This machine is not intended to be a restraining
devise for exploding tires, tubes, or rims.
KEEP HANDS AND BODY CLEAR
at all times and
as far back as possible during inflation.
DO NOT lean over the tire while inflating.
An exploding tire, rim or other wheel component
can cause death to operator and/or bystander.
REMAIN CLEAR AT ALL TIMES.
STAGE ONE / BEAD SEALING
1. Position valve stem in front of operator and connect
the Inflation Hose. (See Fig. 16.1)
2. Hold tire up against upper edge of the wheel. Be sure
tires top bead is over the bottom of the valve stem.
(See Fig. 16.2)
3. Pull the Inflation Trigger and hold about to begin air flow
through tire valve, the blast of air will expand tire and seal the
beads. (See Fig. 16.3)
4. Release the Inflation Trigger. Verify that both beads are
completely sealed to the wheel. Repeat these steps if beads
have not sealed. If tire and wheel are properly lubricated
and operator cannot achieve bead seal after a few attempts,
the valve core may be removed from the valve stem to allow
more air flow into the tire to assist with bead seal. After bead
seal is achieved, remove the chuck and reinstall the valve
core.
STAGE TWO / BEAD SEATING
Bead seating usually occurs on the long tapered side of
the wheel first and the shorter side last. Bead seating will
usually require at least 7 PSI in the tire. 40 PSI is the
maximum safe pressure at this stage regardless of tire
operating pressure. Most European import cars and many
aftermarket alloy wheels are very tight and can be difficult to
bead seat. Also note that asymmetrical hump and
run-flat tires are extremely difficult to bead seat. Follow tire
manufacturer’s recommended procedure for bead seating.
26
Fig. 16.2
Fig. 16.1
Fig. 16.3
WARNING!
Operator should keep hands, arms, and entire body
away from the tire during the following bead seat
and inflation procedures. Do not stand over tire,
as personal injury could result from inflating tire.
Avoid distraction during inflation. Check tire
pressure frequently to avoid over inflation.
Excessive pressure can cause tires to explode,
causing serious injury or death to operator or
bystander.
Summary of Contents for R715
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