TSE DP20-4H, Owner'S Manual

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Tires
Before mounting tires onto the wheels, make certain that the rim
size and contour is approved for the tire as shown in the Tire and
Rim Association Yearbook or the tire manufacturers catalog.
Also, make sure the tire will carry the rated load. If the load is not
equal on all tires due to trailer weight distribution, use the tire
rated for the heaviest wheel position.
Note: The capacity rating molded into the sidewall
of the tire is not always the proper rating for the tire
if used in a trailer application. Use the following
guidelines:
1. LT and ST tires. Use the capacity rating molded into the
tire.
2. Passenger Car Tires. Use the capacity rating molded into
the tire sidewall divided by 1.10 for trailer use.
Use tire mounting procedures as outlined by the Rubber
Manufacturer's Association or the tire manufacturers.
Tire inflation pressure is the most important factor in tire life.
Inflation pressure should be as recommended by the
manufacturer for the load. Pressure should be checked cold
before operation. Do not bleed air from tires when they are hot.
Check inflation pressure weekly during use to insure the
maximum tire life and tread wear. The following tire wear
diagnostic chart will help you pinpoint the causes and solutions of
tire wear problems.
CAUTION
Tire wear should be checked frequently because once a
wear pattern becomes firmly established in a tire it is
difficult to stop, even if the underlying cause is
corrected.
Wheels and Tires