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Discovery, Discovery LXE, Pace Arrow, and Pace Arrow LXEt
090440b
Importance of Air Pressure
The most important factor
in maximizing the life of the
tires is maintaining proper
ination pressure. Driving with
an underinated or overinated
tire is dangerous and may cause
premature wear, tire damage,
sudden tire failure that can result in
loss of control of the motorhome.
A tire that is underinated will
cause excess heat that can exceed
operating limits of the tire and
could result in sudden failure and
re. An underinated tire will also
cause poor handling, rapid and/or
irregular tire wear and increases
rolling resistance and decreases
fuel economy.
WARNING:
Driving on a tire that is
underinflated can exceed
the design limits of the
tire and may damage
the sidewall. A damaged
sidewall can suddenly burst
upon inflation resulting
in serious damage, injury
or death. Aged tires are
also susceptible to sidewall
damage.
A tire that is overinated will
reduce the footprint/contact patch
with the road reducing traction,
brake effectiveness and handling.
Overination will also cause
a harsh ride, uneven tire wear
and make the tire susceptible
to impact damage. Maintaining
correct ination pressure is of
utmost importance for safety and
reliability and should be a part of
regular maintenance checks.
Underination can cause:
Tire squeal on turns.
Separations.
Rapid and uneven wear on
the edges of the tread.
Circumferential breaks.
Tire container may bruise
or rupture.
Higher risk of road hazard.
Tire cord breakage.
Loss of casing durability.
Excessive tire temperature.
High fuel consumption.
Reduced handling quality.
Overination can cause:
Hard ride.
Tire bruising or carcass
damage.
Rapid tread wear in the
center of the tire.
Unequal Tire Pressures on the
Same Axle Causes:
Uneven braking.
Swerve upon acceleration.
Torque steer.
Reduced handling quality.
Tire Inflation Information
Federal law requires the size
of the tire, the tire’s maximum
ination pressure and load
capacity as well as load range be
molded into the sidewall of the
tire. Ination pressure will vary
dependent upon the weight of the
motorhome when fully loaded
ready for travel. Always comply
with the tire manufacturer’s
recommended ination pressure.
This requires the motorhome be
weighed in a loaded, ready to
travel condition, to determine
actual weight carried by the tires.
Actual weight of the motorhome
can vary signicantly depending
on how it is loaded. For optimum
tire wear, ride and optimum
handling always comply with the
manufacturer’s suggested ination
pressure for the actual weight
of the motor home. From the
factory, the tires are inated to the
maximum pressure.
When the motorhome is loaded
ready for travel, check and adjust
ination pressure on each tire
as indicated in the load ination
table.