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A
CAUTION:
Rust or dirt on a wheel, or on the parts to which
it is fastened, can make wheel nuts become loose
after a time. The wheel could come off and cause
an accident. When you change
a
wheel, remove
any rust or dirt from places where the
wheel
attaches to the vehicle. In an emergency, you can
use a cloth or a paper towel to do this; but be
sure to use a scraper or wire brush later,
if you
need to, to get all the rust or dirt off. (See
"Changing a Flat Tire" in the Index.)
When
It's
Time for
New
Tires
One way to tell when it's
time for new tires is to
check the treadwear
indicators, which will
appear when your tires have
only 1/16
inch (1.6 mm) or
less of tread remaining.
Some commercial truck
tires may not have
treadwear indicators.
You need a new tire if any of the following statements
are true:
0
You can see the indicators at three or more places
0
You can see cord or fabric showing through the
tire's rubber.
0
The tread or sidewall is cracked, cut or snagged deep
enough to show cord or fdbric.
0
The tire has a bump, bulge or split.
The tire has a puncture, cut or other damage that
around the tire.
can't be repaired well because of the size or location
of the damage.
6-44
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