PIB TIP: PERFORM ROUTINE MAINTENANCE. Proper maintenance of tires, wheels, axles and the steering column also will help keep your tire costs down. Wheels naturally lose alignment and balance. Bushings, shocks, bearings and valve stems wear out. Checking wheel alignment periodically can pay big dividends. Whenever you start seeing a heavy spot or a flat spot, the tire has ceased to be centered on the hub. When you need to scrap a tire, inspect it to determine the cause of the failure, and keep records. The Partners in Business program is produced by Overdrive and the consultants at ATBS, the nation’s largest owner-operator business services firm, and is sponsored by Schneider National Inc. and Freightliner Trucks.