The Importance of Proper Air Pressure
The amount of air pressure in a tire determines the load that can be carried
safely. Every tire will have the maximum load and inflation molded into the
sidewall of the tire. This load and inflation ratio should never be exceeded
since this can cause handling problems, irregular wear, and component failure.
The proper amount of air pressure is always determined by the weight of
your RV fully loaded. This weight takes into account all liquids, supplies, and
passengers.
Tire pressure is what enables your RV tire to support loads. Overloading your
tires can have serious consequences for passengers and your RV. Too much
weight can cause stress on your RV’s suspension system, brake failure, shock
absorber damage, handling and steering problems, irregular tire wear and
possible tire failure. Excessive loads or under inflation can lead to an excessive
amount of heat and tire failure. If you discover that your tires cannot handle the
load, lighten the weight of the load on your tires.
The level of air in your tires affects your vehicle’s overall performance. Not
even the highest quality tire will perform well if it’s not inflated properly. The
correct pressure varies from vehicle to vehicle and depends in part upon driver
preference. Each vehicle has a recommended inflation pressure, usually found
on a placard on the door section, doorpost, glove door, or fuel door.
Under Inflation
Under inflation brings a higher risk of susceptibility to damage due to road
hazards, reduces casing durability, and causes a loss in fuel economy, plus
uneven or irregular tire wear. Severe under inflation brings about an increased risk
of tread separation, handling difficulties, and possibly tire failure, which is caused
by overheating.
IMPORTANT: It’s a common practice for RV owners to lower tire pressure in their
search for a smoother ride. This is not only dangerous, it’s relatively ineffective,
and as the difference in ride quality is not significant. When minimum inflation
pressure requirements are not met, tire durability and optimum operating
conditions are compromised. Tire inflation pressure should always meet at least
the minimum guidelines for vehicle weight.
It may be necessary to inflate your tires at a truck stop or truck
•
service center in order to achieve adequate air pressure for your
coach’s needs
Only permanent air seal metal valve caps should be used.
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Be safe - if a tire has been run 20% under inflated, it must be
•
dismounted and inspected by a trained professional. It should not be
aired up without a full inspection or without using a safety cage. Use
a calibrated gauge. If your tire is rated for higher inflation pressures, a
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