Service Charts 157 Tire Record Tire Hints Hints on How to Avoid Unnecessary Tire Wear Maintain correct tire pressure 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.