Front

WHEEL HUB AND KNUCKLE






REMOVAL

CAUTION: Before removing the front axle assembly, disconnect the ABS wheel sensor from the assembly. Then move it away from the front axle assembly area. Failure to do so may result in damage to the sensor wires and the sensor becoming inoperative.

1. Remove wheel bearing lock nut.





2. Remove brake caliper assembly and rotor. Brake hose need not be disconnected from brake caliper. In this case, suspend caliper assembly with wire so as not to stretch brake hose. Be careful not to depress brake pedal, or piston will pop out. Make sure brake hose is not twisted.





3. Separate tie-rod from knuckle with Tool. Install stud nut on stud bolt to prevent damage to stud bolt.
4. Remove kingpin cap and securing nut. Separate kingpin from knuckle.





5. Separate drive shaft from knuckle by lightly tapping it. If it is hard to remove, use a puller. Cover boots with shop towel so as not to damage them when removing drive shaft.





6. Loosen lower ball joint tightening nut.
7. Separate knuckle from lower ball joint stud with Tool.
8. Remove knuckle from transverse link.

INSTALLATION





1. Install knuckle with wheel hub.
2. Tighten wheel bearing lock nut.
Tightening Toque: 235 - 314 Nm (24 - 32 kg-m, 174 - 231 ft. lbs.)
3. Check that wheel bearings operate smoothly.





4. Check wheel bearing axial end play.
Axial end play: 0.05 mm (0.0020 inch) or less

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.

REASSEMBLY





- 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 at left.





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.