8
2
Dimension
checks
(continued)
Tire wear or ride problems
If you experience tire wear or ride problems it may be helpful to check radial run out.
Remove the wheel from the vehicle, deflate and remove the tire (see 3-5, page 22 for
recommendations and instructions for demounting tubeless tires and 6-5, page 43 for
recommendations and instructions for demounting tube-type tires).
Remount the wheel on the vehicle without the tire. Be sure to follow proper mounting
procedures to assure the wheel is well centered on the hub. Place a dial indicator as
illustrated below to trace the bead seats of the wheel. Rotate the wheel noting the amount
of variation shown on the dial indicator. Note: Alcoa aluminum wheels should be tested
for radial run out only at the bead seat surface. A total indicator reading of .045 inches
is acceptable.
Tire wear can also be caused by improperly seated tires. Inspect the tire for proper seating
on the wheel. The tire beads may not be seated properly. If so, remove the wheel from
the vehicle, deflate and break the bead seats (see 3-5, page 22 for recommendations
and instructions for demounting tubeless tires and 6-5, page 43 for recommendations
and instructions for demounting tube-type tires). Adequately lubricate the bead seats
and properly reseat the tire beads. Reinflate the wheel in a safety cage or other suitable
restraint (refer to OSHA rule 1910.177, paragraph b, see Section 7, page 44).
Cracked or
damaged
wheel checks
2-4
WARNING
Cracked or damaged wheels may cause wheels to fail
or come off the vehicle while the vehicle is moving.
Wheels that fail or come off the vehicle while it is moving can cause
serious injury or death.
Immediately remove cracked or damaged wheels from service.
Inspect wheels for cracks or damage according to the following sections of Chapter 2.
Remove wheels from service with known or suspected damage.
WARNING
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