1991 LEXUS SC400 brake

FRONT AXLE HUB ASSEMBLY
SA0W3±03
1. INSTALL BEARING
(a) Using SST, install a new bearing to steering knuckle.SST 09608±35014 (09608±06200)
NOTICE: If the inner race and balls come loose from the
bearing outer race, be sure to install them on the same
side as before.
(b) Using snap ring pliers, install the snap ring.
2. INSTALL OIL SEAL
(a) Install the inner race (outside).
(b) Using SST and a hammer, tap in a new oil seal until it is flush
with end surface of the steering knuckle.
SST 09608±32010
(c) Coat MP grease to the oil seal lip.
3. INSTALL AXLE HUB TO STEERING KNUCKLE
(a) Install the brake dust cover to the steering knuckle with the 4 bolts.
Torque: 8.3 N Vm (85 kgf Vcm, 74 in. Vlbf)
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SUSPENSION AND AXLE FRONT AXLE HUBSA±21
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FRONT AXLE HUB INSTALLATION
SA040±06
1. INSTALL STEERING KNUCKLE TO UPPER BALL JOINT
(a) Install the steering knuckle to the upper suspension arm withthe nut.
Torque: 103 N Vm (1,050 kgf Vcm, 76 ft Vlbf)
(b) Install a new cotter pin.
2. CONNECT STEERING KNUCKLE TO LOWER
SUSPENSION ARM
(a) Connect the steering knuckle to the lower suspension arm
with the nut.
Torque: 125 N Vm (1,270 kgf Vcm, 92 ft Vlbf)
(b) Install a new clip.
3. CONNECT TIE ROD END TO STEERING KNUCKLE
(a) Connect the tie rod end to the steering knuckle with the nut.
Torque: 49 N Vm (500 kgf Vcm, 36 ft Vlbf)
(b) Install a new cotter pin.
4. INSTALL FRONT BRAKE DISC AND CALIPER
(a) Align the matchmarks and install the brake disc to the axle
hub with the 2 screws.
(b) Install the brake caliper to the steering knuckle with the 2 bolts.
Torque: 118 N Vm (1,200 kgf Vcm, 87 ft Vlbf)
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SUSPENSION AND AXLE FRONT AXLE HUBSA±23
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5. CONNECT ABS SPEED SENSOR TO STEERINGKNUCKLE
Connect the sensor to the steering knuckle with the bolt.
Torque: 7.8 N Vm (80 kgf Vcm, 69 in. Vlbf)
6. INSTALL FRONT WHEEL AND LOWER VEHICLE
Torque: 103 N Vm (1,050 kgf Vcm, 76 ft Vlbf)
7. CHECK FRONT WHEEL ALIGNMENT
(See page SA±5)
FRONT WHEEL HUB BOLT
REPLACEMENT
SA1A1±01
1. JACK UP VEHICLE AND REMOVE FRONT WHEEL
2. REMOVE FRONT BRAKE CALIPER AND DISC
(See page SA±30)
3. REMOVE HUB BOLT Using SST, remove the hub bolt.
SST 09628±10011
4. INSTALL HUB BOLT Install a washer and nut to the bolt, as shown in the illustra-
tion, and install a new hub bolt by torquing the nut.
5. INSTALL FRONT BRAKE DISC AND CALIPER (See page SA±36)
6. INSTALL FRONT WHEEL AND LOWER VEHICLE
Torque: 103 N Vm (1,050 kgf Vcm, 76 ft Vlbf)
SA±24±
SUSPENSION AND AXLE FRONT AXLE HUB
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FRONT SHOCK ABSORBER REMOVAL
SA0RN±04
1. JACK UP VEHICLE AND REMOVE FRONT WHEEL
2. REMOVE BRAKE CALIPER
(a) Remove the 2 bolts and caliper from the steering knuckle.
(b) Hang up the brake caliper using wire, etc.
3. REMOVE FRONT FENDER SPLUSH SHIELD
4. LH side only:MOVE WASHER TANK
(a) Remove the bolt.
(b) Remove the bolt and move the washer tank away from the body.
5. DISCONNECT ABS SPEED SENSOR AND WIRE HARNESS
(a) Remove the bolt and disconnect the speed sensor from the
steering knuckle.
SA±28
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SUSPENSION AND AXLE FRONT SUSPENSION
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(b) Install and tighten the bolt.
6. INSTALL FRONT FENDER SPLASH SHIELD
7. INSTALL DISC BRAKE CALIPERInstall the brake caliper to the steering knuckle with the 2
bolts.
Torque: 118 N Vm (1,200 kgf Vcm, 87 ft Vlbf)
8. STABILIZE SUSPENSION
(a) Install the front wheel and lower vehicle.
Torque: 103 N Vm (1,050 kgf Vcm, 76 ft Vlbf)
(b) Bounce the vehicle up and down several times to stabilize the
suspension.
(c) Jack up vehicle and remove the front wheel.
9. TIGHTEN BOLT AND NUT ON LOWER SIDE OF SHOCK ABSORBER
(a) Support the lower arm with a jack.
(b) Tighten the nut to the specified torque.
Torque: 143 N Vm (1,460 kgf Vcm, 106 ft Vlbf)
10. TIGHTEN BOLT AND NUT OF UPPER SUSPENSION ARM
Tighten the bolt and nut to the specified torque.
Torque: 164 N Vm (1,670 kgf Vcm, 121 ft Vlbf)
11. INSTALL FRONT WHEEL AND LOWER VEHICLE
Torque: 103 N Vm (1,050 kgf Vcm, 76 ft Vlbf)
12. CHECK FRONT WHEEL ALIGNMENT
(See page SA±5)
SA±34
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SUSPENSION AND AXLE FRONT SUSPENSION
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UPPER SUSPENSION ARM REMOVAL
SA1A2±01
1. JACK UP VEHICLE AND REMOVE FRONT WHEEL
2. REMOVE FRONT BRAKE CALIPER AND DISC
(a) Remove the 2 bolts and brake caliper from the steeringknuckle.
(b) Hang up the caliper using wire, etc.
3. REMOVE FRONT FENDER SPLASH SHIELD
4. LH side only: MOVE WASHER TANK
(a) Loosen the bolt.
(b) Remove the bolt and move the washer tank away from the body.
5. REMOVE ABS SPEED SENSOR AND WIRE HARNESS CLAMP
(a) Remove the bolt and disconnect the speed sensor from the
steering knuckle.
SA±36
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(b) Install and tighten the bolt.
4. INSTALL FRONT FENDER SPLASH SHEILD
5. INSTALL BRAKE CALIPERInstall the brake caliper to the steering knuckle with the 2
bolts.
Torque: 118 N Vm (1,200 kgf Vcm, 87 ft Vlbf)
6. STABILIZE SUSPENSION
(a) Install the front wheel.
Torque: 103 N Vm (1,050 kgf Vcm, 76 ft Vlbf)
(b) Bounce the vehicle up and down several times to stabilize the
suspension.
(c) Jack up the vehicle and remove the front wheel.
7. TIGHTEN BOLT AND NUT OF UPPER SUSPENSION ARM
(a) Support the lower arm with jack.
(b) Torque the bolt and nut the specified torque.
Torque: 164 N Vm (1,670 kgf Vcm, 121 ft Vlbf)
8. INSTALL FRONT WHEEL AND LOWER VEHICLE
Torque: 103 N Vm (1,050 kgf Vcm, 76 ft Vlbf)
9. CHECK FRONT WHEEL ALIGNMENT
(See page SA±5)
±
SUSPENSION AND AXLE FRONT SUSPENSIONSA±39
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LOWER SUSPENSION ARM REMOVAL
SA1A4±01
1. JACK UP VEHICLE AND REMOVE FRONT WHEEL
2. REMOVE ENGINE UNDER COVER
3. REMOVE FRONT BRAKE CALIPER
(b) Hang up the brake caliper using wire, etc.
4. DISCONNECT STABILIZER BAR LINK FROM LOWERSUSPENSION ARM
Remove the nut and disconnect the link from the arm.
5. DISCONNECT STEERING KNUCKLE
(a) Remove the clip and nut.
(b) Using SST, disconnect the steering knuckle from the lower suspension arm.
SST 09628±62011
6. REMOVE LOWER SUSPENSION ARM
(a) R e m o v e t h e b o l t a n d n u t a n d d i s c onnect the lower
suspension arm from the shock absorber.
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SUSPENSION AND AXLE FRONT SUSPENSIONSA±41
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