Operator`s manual

Service Charts 157
Tire Record
Tire Hints
Hints on How to Avoid Unnecessary Tire Wear
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Maintain correct tire pressure
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Check the tire pressure when the tires are cold
•
Check that valve caps are not missing
•
Keep the wheels balanced
•
Tire wear increases with speed
•
Overloading not only decreases tire life but also creates a hazard
•
Incorrect front end alignment causes increased wear
•
Unnecessary tire rotation may cause excessive wear
Note: A cold weather initial driving period will increase the life of new or retreaded tires.
Dual mounted wheels should always be of the same type and diameter (maximal diameter
difference allowed is 1/4 in. [6 mm]).
VTNA is committed to repair procedure 642
(RP 642), American Tire Association (ATA)
and The Maintenance Council (TMC).
Representatives from VTNA actively
participated, along with twenty-two
companies, in developing recommended
practice 642 entitled “Total Vehicle
Alignment:” Recommendations for
Maximizing Tire and Alignment related
Component Life.” Recommended Practice
642 (RP 642) is published by the
Maintenance Council, American Trucking
Associations, Inc.
Companies that participated in the
development of RP 642 are listed in the RP.