3.7 Checking And Truing Wheels

CHECKING AND TRUING WHEELS                                                                                                      3.7
GENERAL                                                                  1557816

Check wheels for lateral and radial runout before installing a
new tire, tube or rim seal. Checking cast or laced wheels is
performed using the same procedure.
Laced wheels having excess runout can be trued. However,
cast wheels must be replaced. Never attempt to straighten cast
wheels.

Always check condition of the wheel bearings before checking
or adjusting wheel runout. See SEALED WHEEL BEARINGS
(Page 3-19).

CHECKING WHEEL RUNOUT

 PART NUMBER                    TOOL NAME
HD-99500-80           WHEEL T RUING STAND

Check wheels for both radial runout and lateral runout. If either
measurement is not within specification:                                   1.      Wheel truing and balancing stand
                                                                           2.      Radial runout
• Cast wheel: Replace the wheel.
                                                                           3.      Gauge rod
• Laced wheel: Adjust spokes to true the wheel. See steps                  4.      Bead safety hump
  in this section.                                                                 Figure 3-13. Checking Radial Runout

Checking Radial Runout                                              Checking Lateral Runout
1.   See Figure 3-13. Mount wheel in WHEEL TRUING STAND             1.     See Figure 3-14. Mount wheel in WHEEL TRUING STAND
     (PART NUMBER: HD-99500-80).                                           (PART NUMBER: HD-99500-80).
2.   Adjust gauge rod or dial indicator to the rim's tire bead                                 NOTE
     safety hump.
                                                                    Dial indicators are more accurate than gauge rods.
3.   Rotate wheel and measure distance at several locations.
     Runout must not exceed specification.                          2.     Place a gauge rod near, or dial indicator on the rim bead
     • Cast Wheels: 0.030 in (0.76 mm)                                     flange.

     • Laced Wheels: 0.050 in (1.27 mm)                             3.     Measure distance at several locations. Lateral runout must
                                                                           not exceed specification.
                                                                    • Cast Wheels: 0.030 in (0.76 mm)
                                                                    • Laced Wheels: 0.050 in (1.27 mm)

                                                                         1557824

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                                                                           1.      Wheel truing and balancing stand
                                                                           2.      Lateral runout
                                                                           3.      Gauge rod
                                                                                   Figure 3-14. Checking Lateral Runout