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Underinflation
When an underinflated tire is run at normal high-
way speeds, it flexes too much and builds up
heat. This heat damages the inner liner, casing
and outer sidewall of the tire. If not remedied
quickly, the tire will be irreparably damaged.
In extreme cases, the sidewall of the tire is
destroyed, both from the excessive heat it endured
due to the weight of the vehicle pressing on the
tire casing without the cushioning load carrying
effect of the correct air pressure, and the crush-
ing/cutting action of the wheel as it rolls on the
underinflated sidewall. According to guidelines
put out by the Rubber Manufacturers Association
(RMA), any tire that has been run at less than
80% of recommended air pressure for the load it
is carrying should be inspected for possible
damage.
When one tire in a dual configuration comes out
of service due to underinflation damage, the
other tire in the dual configuration should be
inspected immediately. If the unserviceable tire
was underinflated, that means the serviceable
tire was carrying more and more of the load for
that wheel position. Consequently, it too may
have suffered some casing damage due to over-
loading.
Air Pressure Check
You should check the air pressure every two
weeks or at least once each month and before any
trip. Your RV tires’ air pressure should be
checked every “drive” morning on long trips. On
short trips of a day or less driving each way, your
tires should be checked before you leave on your
trip and again before you start your trip home.
Check your tires when they are “cold” and have
not been driven for more than one mile. The
stated load capacity for a given cold inflation
pressure is based on ambient outside tempera-
ture. If you must check your tires when they are
warm or hot, do allow for a slight increase in air
pressure and make sure they are within a couple
of pounds of each other on the same axle.
Frequently check tires. If a tire picks up a nail or
screw that creates a slow leak and causes some
air pressure loss, you might eventually spot it
visually if it is a front tire. If it is an outside rear
dual, you might also spot it with a visual inspec-
tion. However, if it is an inside rear dual, the
chances of spotting it without an air pressure
check are very slim. If you begin driving without
finding it, very quickly (in most cases a few
miles) your outside rear tire next to the low air
pressure tire is going to heat up from carrying
double its load, which if left un-remedied will
eventually will cause both tires to fail.
Tire Replacement
Replacement tires must be the same size, type
and tread depth per axle, and have at least the
same weight carrying capacity as the original
equipment. Tires supplied by various manufac-
turers of the same size and rating may not have
the same weight carrying capacity and maxi-
mum cold inflation pressures. Consult your tire
dealer. The original equipment wheels and tires
supplied on your motor home have weight car-
rying capacities to support Gross Axle Weight
Ratings (GAWR) as stated on the Federal
Certification Tag attached in the driver’s com-
partment.
If You Get a Flat Tire
In case of sudden tire failure:
• Apply the accelerator to maintain direc-
tional stability, then gradually release the
accelerator.
• Use moderate brake pedal pressure. Do
not pump the brake. The vehicle is
equipped with Anti-lock Brakes (ABS)
which will help control braking.
• Firmly hold the steering wheel while
avoiding abrupt steering inputs and move
On The Road
04-12
NOTE
The motor home will tend to “pull” toward the side with
the flat tire.
Содержание 2011 American Eagle
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