Danger, Inflation, Mis-matched tires and wheels – COATS Extended Mobility (EMT) RunFlat Tires User Manual

Page 27

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Mis-Matched Tires and Wheels

–NEVER attempt to mount and inflate mis-matched tires and wheels.

Mis-matched tires and wheel combinations can explode, causing personal injury or death
to operator and bystanders. For safety reasons, do not attempt to mount and inflate mis-
matched tires and wheels.

Inflation

H–5

This completes Section H.

Bead Sealing–A 140 PSI air blast from the tabletop jets creates an air
curtain to aid in bead sealing. NEVER exceed 10 PSI in the tire during
bead sealing. The tire will contain about

1

2

to 2 PSI when bead seal is

obtained.

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. If the tire is in an approved safety cage,
80 PSI is the maximum safe pressure at this stage, regardless of operat-
ing pressure.

Most European import cars and many aftermarket alloy wheels are very
tight and may be difficult to bead seat. Also note that asymmetric hump
and run flat tires are extremely difficult to bead seat. Follow tire manu-
facturer’s recommended procedure for bead seating.

Inflation–After the beads are seated, the tire is inflated. DO NOT inflate
the tire above the manufacturer’s recommended pressure as stamped
on the tire sidewall. The typical inflation pressure for automobile tires is
between 24 and 45 PSI. Light truck inflation pressure typically covers a
wider range.

DANGER

!

A safety cage must be used for bead seating and inflation of EMT/RunFlat tires.

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