Lexus SC300 / Lexus SC400. Service manual — part 820

FRONT AXLE HUB

COMPONENTS

SA003–0B

SA–16

–

SUSPENSION AND AXLE

FRONT AXLE HUB

STEERING KNUCKLE WITH AXLE HUB
REMOVAL

SA01Y–08

1.

JACK UP VEHICLE AND REMOVE FRONT WHEEL

2.

REMOVE FRONT BRAKE CALIPER AND BRAKE DISC

(a) Remove the 2 bolts and remove the brake caliper from the

steering knuckle.

(b) Hang up the brake caliper using wire, etc.

(c) Place matchmarks on the brake disc and axle hub.
(d) Remove the 2 screws and remove the brake disc.

3. REMOVE

ABS

SPEED

SENSOR

FROM

STEERING

KNUCKLE
Remove the bolt and disconnect the sensor from the steering
knuckle.

4.

CHECK BACKLASH IN BEARING SHAFT DIRECTION
Place the dial indicator near the center of the axle hub and
check the backlash in the bearing shaft direction.

Maximum:

0.05 mm (0.0020 in.)

If greater than the specified maximum, replace the bearing.

–

SUSPENSION AND AXLE

FRONT AXLE HUB

SA–17

5.

CHECK AXLE HUB DEVIATION
Using a dial indicator, check the deviation at the surface of
the axle hub outside the hub bolt.

Maximum:

0.05 mm (0.0020 in.)

If greater than the specified maximum, replace the axle hub.

6. DISCONNECT TIE ROD END FROM STEERING

KNUCKLE

(a) Remove the cotter pin and nut.
(b) Using SST, disconnect the tie rod end from the steering

knuckle.
SST 09628–10011

7. DISCONNECT

STEERING

KNUCKLE

FROM

UPPER

SUSPENSION ARM

(a) Remove the cotter pin and nut.
(b) Using SST, disconnect the steering knuckle from the upper

suspension arm.
SST 09628–62011

8.

REMOVE STEERING KNUCKLE

(a) Remove the clip and nut.
(b) Using SST, remove the steering knuckle from the lower

suspension arm.
SST 09628–62011

SA–18

–

SUSPENSION AND AXLE

FRONT AXLE HUB

FRONT AXLE HUB DISASSEMBLY

SA0RL–04

1.

REMOVE HUB BEARING CAP
Using a screwdriver, remove the hub bearing cap from the
steering knuckle.

2.

REMOVE FRONT AXLE HUB LOCK NUT AND ABS
SPEED SENSOR ROTOR

(a) Clamp the axle hub in a soft jaw vise.

HINT: Close vise until it holds hub bolt do not tighten further.

(b) Using

a

hammer and chisel, loosen the staked part of the lock

nut and remove it.

(c) Remove the sensor rotor.

NOTICE: Take care not to scratch the serrations of the sensor

rotor.

3.

REMOVE AXLE SHAFT FROM STEERING KNUCKLE

(a) Remove the 4 bolts and shift the brake dust cover toward the

hub side (outside).

(b) Using SST, remove the axle shaft from the steering knuckle.

SST 09950–20017

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SUSPENSION AND AXLE

FRONT AXLE HUB

SA–19