|
|
marked permanently on the inside of the rim in the Before dismounting a tire from its wheel, a refer- ence mark should be placed on the tire at the valve (1) Remove the tire and wheel assembly from the vehicle and mount on a service dynamic balance (2) Measure the total runout on the center of the tire tread rib with a dial indicator. Record the indi- (3) Break down the tire and remount it 180 degrees on the rim (Fig. 5). (4) Measure the total indicator runout again. Mark the tire to indicate the high spot. (5) If runout is still excessive, the following proce- dures must be done. • If the high spot is within 101.6 mm (4.0 in.) of the first spot and is still excessive, replace the tire. • If the high spot is within 101.6 mm (4.0 in.) of the first spot on the wheel, the wheel may be out of • If the high spot is NOT within 101.6 mm (4.0 in.) of either high spot, draw an arrow on the tread Fig. 4 First Measurement On Tire 1 - REFERENCE MARK Fig. 5 Remount Tire 180 Degrees 1 - VALVE STEM VA TIRES/WHEELS 22 - 3 |