COATS 5030 A/E Tire Changer - Manual (Page 12)

8 • Important: Always read and follow operating instructions.
Bead Sealing
1. Connect the inflation hose to the tire valve stem.
Hold the tire up against the upper edge of the wheel.
Be sure the top bead of the tire is over the bottom of
the valve stem (Figure 15).
Figure 15 - Lift Tire Upwards for Bead Sealing
2. Depress the inflation pedal to position 2 and hold
about 1 second to begin air flow, then depress pedal to
position 3 and hold very briefly - less than 1 full second.
The blast of air from the jets will expand the tire and
seal the beads.
3. Remove your foot from the inflation pedal and
allow it to return to position 1. Verify that both beads are
completely sealed to the wheel. Repeat these steps if
beads have not sealed.
Note: If tire and wheel are properly lubricated and the
operator cannot achieve bead seal after 3 or 4 attempts,
the valve core may be removed from the valve stem
to allow more air into the tire to assist with bead seal.
After bead seal is achieved, remove the chuck and
reinstall the valve core.
Bead Seating
WARNING
Operator should keep hands, arms, and
entire body away from the tire during the
remaining bead seat and inflation proce-
dures. Do not stand over tire, as personal
injury could result.
WARNING
NEVER increase air pressure to exceed 40
PSI when attempting Bead Seat. If operator
is unable to obtain Bead Seat, something is
wrong. Deflate tire completely, inspect both
the tire and wheel, correct any problems
found, relubricate both tire beads, and reat-
tempt Bead Seal and Bead Seat procedures.
Follow all safety instructions in this manual
and on machine.
1. Once tire pressure is indicated on the air gauge
(inflation pedal in position 1; foot removed from pedal),
continue to inject air into the tire in short intervals.
Check the pressure frequently.
Stand back during bead seat. Keep hands, arms, and
entire body away from tire during this procedure.
Tire beads should move outward and “pop” into their
bead seat position as pressure inside the tire increases.
If this does not happen, a problem exists. Investigate
carefully.
WARNING
Check tire pressure frequently. Never exceed
40 PSI while seating beads. Once seated,
never exceed tire manufacturer’s recom-
mended air pressure. Tires can explode,
especially if they are inflated beyond their
limits. At all pressure levels when inflating
through the valve stem, keep hands, arms,
and entire body away from inflating tire.
An exploding tire, wheel, or bead sealing
equipment may propel upward and outward
with sufficient force to cause serious injury
or death to operator or bystander.