Airstream (nest) 2019, Owner'S Manual

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8-4
Tire Load and Inflation Information
Maintaining proper tire inflation pressure is essential for both tire
safety and performance.
• Proper Tire Inflation
The level of air in your tires affects your vehicle’s overall
performance. A maximum inflation pressure specification is found
on the trailer’s exterior on a metal tag riveted to the lower front,
roadside of the trailer as well as on the original equipment tires.
Air pressure should be checked based on the load on each
individual tire. Cold Inflation Pressure should be adjusted to
handle the maximum tire load and all tires on the axle should
carry the same inflation pressure. Cold tire inflation pressure is
the tire pressure checked in the morning before you drive more
than a few miles or before rising ambient temperatures or the
sun’s radiant heat affects it.
WARNING
Wheel separation can occur:
1. On first trip, tighten lug nuts at beginning of trip,
and at 10, 25 and 50 miles
2. Check lug nuts before each trip
3. Following winter storage, check lug nuts before
beginning a trip
4. Following excessive braking, inspect lug nuts
• Under-inflated Tires
Underinflation brings a higher risk of damage due to road
hazards, reduce casing durability, cause a loss in fuel economy
and will result in uneven or irregular tire wear. Severe under-
inflation brings about an increased risk of tread separation,
handling difficulties and possible tire failure caused by
overheating.
When minimum inflation pressure requirements are not met, tire
durability and optimum operating conditions are compromised.
Tire inflation pressure should always meet the guidelines for
vehicle weight.
Observe the following:
• 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 trailer’s needs.
• Only permanent air seal metal valve caps should be used.
• Be safe — if a tire has been run in a 20% under- inflated
condition, 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 special gauge
will be required that is designed for larger tires.
• Do not bleed air from warm tires to reduce pressure buildup.
• Do not inflate tires to cold PSI rating beyond rim
specifications.
• How Overloading Affects Your Tires
Tire pressure is what enables your trailer tire to support loads,
thus, overloading can have serious consequences. Too much
weight can cause stress on the suspension system components,
brake failure, handling and steering problems, irregular tire wear
and possible tire failure. If you discover that your tires cannot
handle the load, lighten the weight of the load on your tires.
• Weighing Your Trailer Or Towed Vehicle
Since a trailer or towed vehicle adds to the load on the tires, it is
crucial to properly weigh towed vehicles. Refer to Section 7 —
Towing section for important detailed information on loading and
weighing of the trailer.
Tire Care
The most important function of tires are to provide traction
while moving, and grip when steering or stopping. The tires on
your trailer are designed for highway use and must be properly
maintained in order to maximize tire life as well to provide a safe
mode of transportation.
WARNING
The maximum speed rating on the tires installed
on your trailer is 87 MPH. Do not exceed this
rating. Failure to heed this warning could cause
catastrophic tire failure resulting in property
damage, personal injury and/or death.
WARNING
Never attempt to change any trailer tire without
securely chocking the trailer’s other wheel. Never
position yourself in a manner where a raised
trailer can come down on you if it should become
dislodged from a jack or ramp.
WARNING
When removing aluminum-forged wheels from
spindle, it is very important to mark them to ensure
the wheel is placed in the same position of the
drum when reinstalling. If wheel is to be mounted
on a different drum, it is important to sand all loose
corrosion from the mating surfaces.