Use run out gauge D-128-TR to determine run out
(Fig. 5).
Relocate wheel on the mounting, two studs over
from the original position.
Retighten wheel nuts until all are properly
torqued. This will prevent brake distortion.
Check the radial run out of the wheel. If still excessive,
mark tire sidewall, wheel, and stud at point of maximum
run out (Fig. 6) and proceed to Method 2.
METHOD 2 (RELOCATE TIRE ON WHEEL)
Rotating tire on wheel is particularly effective
when there is run out in both tire and wheel.
Remove tire from wheel and remount wheel on hub
in former position.
Check the radial run out of the wheel (Fig. 7). The
radial run out of the wheel should be no more than
1.524 mm (0.060 inch).
Check the lateral run out of the wheel (Fig. 8). The
lateral run out of the wheel should be no more than
0.762 mm (0.030 inch).
If point of the most wheel radial run out is near
original chalk mark, remount tire 45 degrees from its
original spot. Recheck run out.
Fig. 5 Run Out Gauge
Fig. 6 Chalk Marking On Wheel, Tire And Stud
1 – STUD
2 – TIRE
3 – CHALK MARK LOCATIONS
Fig. 7 Checking Radial Run Out Of Wheel
1 – MOUNTING CONE
2 – SPINDLE SHAFT
3 – WING NUT
4 – PLASTIC CUP
5 – DIAL INDICATOR
6 – WHEEL
7 – DIAL INDICATOR
Fig. 8 Checking Lateral Run Out Of Wheel
1 – MOUNTING CONE
2 – SPINDLE SHAFT
3 – WING NUT
4 – PLASTIC CUP
5 – DIAL INDICATOR
6 – WHEEL
7 – DIAL INDICATOR
22 - 10 TIRES AND WHEELS LH
DIAGNOSIS AND TESTING (Continued)