Front Hub Service

FRONT HUB ASSEMBLY, RENEW

FRONT HUB BEARING END FLOAT CHECK AND ADJUST

FRONT HUB BEARING, RENEW

FRONT HUB OIL SEAL, RENEW


Disassemble

^ Disconnect vehicle battery ground lead.

^ Support the vehicle at the front and remove the appropriate road wheel (8)

^ Remove brake caliper and disc assemblies.

Note: Do not allow the caliper to hang by either harness or flexible hose.

Warning: DO NOT INHALE BRAKE PAD DUST, IT MAY DAMAGE YOUR HEALTH.





^ Prise off the hub grease cap (1 Fig. 3).

^ Remove and discard cotter pin (2 Fig. 3), pull off castellated nut retainer (3 Fig. 3).

^ Remove the hub nut and bearing washer. Carefully remove the hub assembly (4 Fig. 3) from the stub axle.

^ Hub oil seal. Prise the original seal from the spigot and discard.

^ Remove all traces of grease and dirt from the stub axle and back plate.





^ Lightly lubricate the stub spigot (to ease assembly of the seal) and assemble the seal to the spigot using special tool JD 179 (Fig. 4).






^ Pack the annular gaps of the oil seal lips with grease.
Ensure that the hub inner seal diameter is free of debris or damage and is lightly lubricated prior to assembly.

^ Bearing. Wash the hub assembly thoroughly and 'drift' the affected bearing cup(s) from the hub.

Note: Only replace complete bearings, never cup or race in isolation.

^ Hub. At this point the hub may be renewed if required.

Assembly

^ Bearing. Assemble the inner bearing track to the hub using service tool 18G 134 and adaptor JD 550-5/1.
Assemble the outer bearing cup to the hub using service tool 18G 134 and adaptor JD 550 - 5/2.
Pack each race with approximately 4 ml of grease and position the inner race onto the stub axle.
Apply a smear of grease to hub inner surfaces and bearing cups. Assemble the hub to the stub axle followed by outer race, bearing washer and hub nut.

Note: It is not necessary to fill the hub cavity with grease, merely protect from corrosion with a coat of lubricant. 'Seat' the bearings by slightly tightening the hub nut whilst rotating the hub. Do not apply load without rotation.





^ End float. Set a Dial Test Indicator (DTI) as shown in Fig. 1 and adjust the hub nut to achieve the correct end float. As the adjustment is made, continually load the hub axially in both directions,

^ Without disturbing the end float setting, fit the castellated nut retainer so that it aligns with both hub nut and stub axle drilling.

^ Secure nut retainer using a new cotter pin.

^ Assembly and fitting is the reversal of this procedure noting that; all fixings MUST be tightened to specification and operation of the braking system verified.