Wheel Hub: Testing and Inspection

INSPECTION

Wheel Bearing Play





1. Jack up the vehicle and support it with safety stands. Check if there is noticeable bearing play with the hands held at the top and bottom of the tire.

Wheel bearing play: Omm (0 in)

2. Check whether the tire rotates smoothly when rotated, and whether there is a rough feeling or abnormal noise from the bearing.
3. Replace the wheel bearing or adjust the wheel bearing preload, if necessary.

ADJUSTMENT





1. Remove the wheel and tire.
2. Remove the disc brake caliper assembly, and suspend it with a rope.
3. Remove the hubcap, cotter pin, and set cover.
4. Loosen the locknut.
5. Tighten the locknut and turn the hub 2 or 3 times to seat the bearing.

Tightening torque:
20-29 N.m (2.0-3.0 m-kg, 14-22 ft-lb)

6. Loosen the locknut until it can be turned by hand.





7. Attach a pull scale to a hub bolt and measure the frictional force.





8. Tighten the locknut until the reading (initial turning torque) reaches the specified amount. Insert set cover, and secure with a cotter pin.

Preload: Frictional Force Plus
3.9-9.8 N (0.4-1.0 kg, 0.9-2.2 lb)