Every time you check inflation, you
should also examine the tyres for
damage, foreign objects, and wear.
You should look for:
Bumps or bulges in the tread or
side of the tyre. Replace the tyre if
you find either of these conditions.
Cuts, splits, or cracks in the side
of the tyre. Replace the tyre if you
can see fabric or cord.
Excessive tread wear.
If you check air pressures when the
tyres are hot [driven for several
kilometers (miles)], you will see
readings 30 to 40 kPa (0.3 to 0.4
kgf/cm , 4 to 6 psi) higher than the
cold reading. This is normal. Do not
let air out to match the
recommended cold air pressure. The
tyre will be underinflated.
While tubeless tyres have some
ability to self-seal if they are
punctured, you should look closely
for punctures if a tyre starts losing
pressure.
You should use your own tyre
pressure gauge whenever you check
your tyre pressures. This will make it
easier for you to tell if a pressure
loss is due to a tyre problem and not
due to a variation between gauges.
For convenience, the recommended
tyre sizes and cold tyre pressures are
on a label on the driver’s doorjamb.
Your tyres have wear indicators
moulded into the tread. When the
tread wears down, you will see a 12.7
mm (1/2 inch) wide band across the
tread. This shows there is less than
1.6 mm (1/16 inch) of tread left on
the tyre.
A tyre this worn gives very little
traction on wet roads. You should
replace the tyre if you can see three
or more tread wear indicators.
Tyre Inspection
Tyres
Maintenance
275
INDICATOR LOCATION MARKS
TREAD WEAR INDICATORS
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