6
2
Excessive
heat damage
2-2
WARNING
Excessive heat from fire, brake malfunction, wheel bearing
failure or other sources may weaken the metal and cause the wheel/tire
assembly to separate explosively.
Exploding wheel/tire assembly can cause death or serious injury.
Immediately and permanently remove from service any wheel
that has been exposed to excessive heat.
Inspect for exposure to excessive heat. A wheel that has been subjected to excessive
heat may appear charred or burned. A wheel that has been exposed to excessive heat
may appear to be in good condition if it has been cleaned. Even if a wheel does not
appear to be obviously burned, check the valve hole and labels for evidence of charring,
melting, blistering or burning.
A wheel may discolor from excessive heat. It can appear a dull grayish color and will not
polish to a bright finish as a typical wheel would.
Any wheel run with a flat tire longer than the time necessary to immediately pull off
the road should be checked for excessive heat damage.
WARNING
A blistered, charred, blackened or cracked-looking logo decal on an Alcoa wheel may indicate
that the wheel has been exposed to excessive heat.
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