Overhaul

CAUTION:
^ When removing wheel hub or wheel bearing from steering knuckle, replace wheel bearing assembly (outer race, inner race and grease seals) with a new one.
^ Wheel bearing does not require maintenance. If any of the following symptoms are noted, replace wheel bearing assembly.
^ Growling noise is emitted from wheel bearing during operation
^ Wheel bearing drags or turns roughly. This occurs when turning hub by hand after bearing lock nut is tightened to specified torque.

DISASSEMBLY





Wheel Hub
^ Drive out wheel hub with inner race from steering knuckle with a suitable tool





Wheel Bearing
1. Remove bearing inner race, then remove outer grease seal.





2. Remove inner grease seal from steering knuckle.





3. Remove snap ring.





4. Press out bearing outer race.

NOTE: When replacing wheel bearing, replace wheel bearing assembly (including inner and outer races).

INSPECTION

Wheel Hub And steering knuckle
^ Check wheel hub and steering knuckle for cracks by using a magnetic exploration or dyeing test.

Snap Ring
^ Check snap ring for wear or cracks. Replace if necessary.





ASSEMBLY
1. Press new wheel bearing assembly into steering knuckle. Maximum load P: 29 kN (3 ton, 3.3 US ton)

CAUTION:
^ Do not press on inner race of wheel bearing assembly.
^ Do not apply oil or grease to mating surfaces of wheel bearing outer race and steering knuckle.

2. Install snap ring into groove of steering knuckle.





3. Pack grease seal lip with multi-purpose grease.





4. Install outer grease seal. Maximum load P.: 10 kN (1 ton, 1.1 US ton)





5. Install inner grease seal. Maximum load P: 10 kN (1 ton, 1.1 US ton)





6. Press wheel hub into steering knuckle. Maximum load P: 29 kN (3 ton, 3.3 US ton)

CAUTION: Be careful not to damage grease seal.

7. Check bearing operation.





a. Add load P with press. Load P: 34.3 - 49.0 kN (3.5 - 5.0 ton, 3.9 - 5.5 US ton)





b. Spin steering knuckle several turns in both directions.
c. Make sure that wheel bearing operates smoothly.