Volvo D11F Operator's Manual And Maintenance Instructions page 90

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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
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 6 mm [1/4 in.]).
Volvo Trucks North America is committed to repair procedure 642 (RP 642),
American Tire Association (ATA) and The Maintenance Council (TMC).
Representatives from Volvo Trucks North America 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.
Maintenance and Service