LEXUS SC400 1991 Service Repair Manual

5. CHECK AXLE HUB DEVIATIONUsing 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 U PPER
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
WhereEverybodyKnowsYourName

FRONT AXLE HUB DISASSEMBLY
SA0RL±04
1. REMOVE HUB BEARING CAPUsing 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
±
SUSPENSION AND AXLE FRONT AXLE HUBSA±19
WhereEverybodyKnowsYourName

4. REMOVE INNER RACE (OUTSIDE) FROM AXLE SHAFTUsing SST, remove the inner race from the axle shaft.
SST 09950±20017
5. REMOVE OIL SEAL Using SST, remove the oil seal from the steering knuckle.
SST 09308±00010
6. REMOVE BEARING FROM STEERING KNUCKLE
(a) Using snap ring pliers, remove the snap ring.
(b) Position the inner race above the bearing on the inner side.
(c) Using SST and a press, remove the bearing from the steering
knuckle.
SST 09608±35014 (09608±06100)
SA±20
±
SUSPENSION AND AXLE FRONT AXLE HUB
WhereEverybodyKnowsYourName

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)
±
SUSPENSION AND AXLE FRONT AXLE HUBSA±21
WhereEverybodyKnowsYourName

(b) Using SST and a press, press the axle hub to steeringknuckle.
SST 09608±32010, 09608±35014 (09608±06040)
4. INSTALL ABS SPEED SENSOR ROTOR NOTICE: Do not scratch the serrations of the sensor ro-
tor.
5. INSTALL AXLE HUB LOCK NUT
(a) Install and torque a new axle hub lock nut.
Torque: 199 N Vm (2,030 kgf Vcm, 147 ft Vlbf)
(b) Using a screwdriver and hammer, stake the lock nut.
6. INSTALL HUB BEARING CAP
Using a screwdriver and hammer, install the hub bearing cap
to the steering knuckle.
SA±22
±
SUSPENSION AND AXLE FRONT AXLE HUB
WhereEverybodyKnowsYourName

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)
±
SUSPENSION AND AXLE FRONT AXLE HUBSA±23
WhereEverybodyKnowsYourName

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
WhereEverybodyKnowsYourName

FRONT SUSPENSION
DESCRIPTION
SA008±04
A double wishbone type independent suspension is used. It ensures the greater design freedom, permits
and ideal wheel alignment selection.
The result is an outstanding straight±forward stability at high speed\
s, turning and braking stability.
Suspension friction is also reduced at each portion of the suspension for good vehi\
cle controllability, stabil-
ity and riding comfort.
±
SUSPENSION AND AXLE FRONT SUSPENSIONSA±25
WhereEverybodyKnowsYourName

PREPARATION
SST (SPECIAL SERVICE TOOLS)
SA02Q±07
RECOMMENDED TOOLS
SA06X±03
EQUIPMENT
SA02S±02
\
 
\


\

\

Torque wrench 




SA±26±
SUSPENSION AND AXLE FRONT SUSPENSION
WhereEverybodyKnowsYourName

FRONT SHOCK ABSORBER
COMPONENTS
SA00A±0A
±
SUSPENSION AND AXLE FRONT SUSPENSIONSA±27
WhereEverybodyKnowsYourName