Group 22, Wheels and Tires
SM 765, Nov ’06 Pneumatic Wheels and Tires • 22-2-3
Inspection and Minor Repair
Inspect pneumatic tires and wheels carefully for.
1. Low inflation pressure.
2. Damaged tires. Check tires for cuts and breaks.
3. Damaged wheels or loosening of the lock ring on
multi-piece rims.
4. Check for loose nuts or bolts not in position.
5. Check the nuts or bolts for damage.
6. Check the surface of the wheels for bent flanges.
7. Check all parts for rust or corrosion.
8. Mark the damaged areas with chalk so that the parts
can be removed from operation.
9. Remove all parts that are damaged and install new
parts in the same position.
10. Replace parts with the correct sizes and types. See
your parts manual.
11. Include your truck serial number when ordering
replacement parts.
Wheel Dismounting and Remounting
Refer to “Lifting, Jacking, and Blocking” in Group SA for
information on jacking up or raising the truck for wheel
removal. Always start with the truck parked safely.
Drive and Steer Wheel Dismounting
1. Remove the valve core from the valve stem to be sure
all air is removed from the tire.
2. Loosen the five lug nuts on the wheel.
3. Use a portable jack of adequate capacity placed
under the frame of truck to raise drive or steer wheels
off floor.
4. Once tire is off the ground enough to rotate freely,
remove the lug nuts and lift the wheel from the hub.
Use caution when lifting tire and wheel.
Drive and Steer Wheel Remounting
IMP
RTANT
See “Tire Installation” in this Section to
make sure the wheel and tire mounting orien-
tation is correct. Check the information for
correct tire-to-wheel mounting and wheel-to-
hub mounting.
1. Make sure the truck is parked on a flat, hard surface
and the jacking and blocking devices are secure to
hold the truck in a safe position.
2. Inspect the removed lug nuts for damage to the
threads. Also inspect all hub studs for thread damage.
Wheel
wedge
Lock
ring
Steering
Axle hub
Drive
Axle hub
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