Airstream 2012 INTERSTATE Owner's Manual page 37

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 inef-
fective, and the difference in ride quality is not significant. When minimum
inflation pressure requirements are not met, tire durability and optimum operat-
ing 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.
• 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 pres-
sures, a special gauge will be required designed for larger tires.
• Don't bleed air from warm tires to reduce pressure buildup
• Don't inflate tires to cold PSI rating beyond rim specifications
HOW OVERLOADING AFFECTS YOUR TIRES
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 can-
not handle the load, lighten the weight of the load on your tires.
TIRES and WHEELS (partially excerpted from the Sprinter Van Operator's
Manual)
Check tires regularly for even tread wear; tread depth (note legal requirements)
and signs of external damage.
Use only wheels and tires of the same size, make and pattern.
Do not install tires that are not approved for the size and type of wheel installed
on the vehicle itself. Only use those wheel sizes that were delivered to you buy
your authorized Sprinter dealer.
Use only wheels and tires that have been tested and approved by the vehicle
C - 5
SPRINTER vAN
C