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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 ination pressure is the most important factor in tire life. Ination 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 ination pressure weekly during use to ensure 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
Proper matching of the tire/wheel combination is essential to
proper function of your trailer running gear. Some tires may call for a
maximum inflation pressure above the rim or wheel capacity. DO NOT
EXCEED MAXIMUM INFLATION PRESSURES FOR RIMS OR WHEELS.
Catastrophic failure may result.
Wheels and Tires
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