Disassembly and Assembly

DISASSEMBLY

CAUTION: When removing wheel hub or wheel bearing from knuckle, replace wheel bearing assembly (outer race, inner races and grease seals) with a new one.

Wheel Hub





Drive out hub with inner race (outside) from knuckle with a suitable tool.

Wheel Bearing
When replacing wheel bearing, replace complete wheel bearing assembly (Inner races and outer race).





1. Remove bearing inner race (outside), then remove outer grease seal.





2. Remove inner grease seal from knuckle.





3. Remove snap rings.





4. Press out bearing outer race.

INSPECTION
Wheel Hub and Knuckle
Check wheel hub and knuckle for cracks by using a magnetic exploration or dyeing test.

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

ASSEMBLY
- When removing baffle plate, replace it with a new one.





- When installing the baffle plate, press new plate so that it is in contact with knuckle wall. Refer to figure.





1. Install inner snap ring into groove of knuckle.
2. Press new wheel bearing assembly into knuckle until it contacts snap ring.
Maximum load P: 49 kN (5 ton, 5.5 US ton, 4.9 Imp ton)

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

3. Install outer snap ring into groove of knuckle.





4. Pack grease seal lip with multi-purpose grease.
5. Install outer grease seal.





6. Install inner grease seal.





7. Press wheel hub into knuckle.
Maximum load P: 49 kN (5 ton, 5.5 US ton, 4.9 Imp ton)
Be careful not to damage grease seal.
8. 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, 3.44 - 4.92 Imp ton)





b. Spin knuckle several turns in both directions.
c. Make sure that wheel bearings operate smoothly.