LEXUS SC400 1991 Service Repair Manual

REAR AXLE HUB
DESCRIPTION
SA037±03
The rear axle also uses double±row angular ball bearings for wheel beari\
ng as in the front axle.
There is no need for bearing grease maintenance or preload adjustment.
SA±48±
SUSPENSION AND AXLE REAR AXLE HUB
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PREPARATION
SST (SPECIAL SERVICE TOOLS)
SA038±05
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SUSPENSION AND AXLE REAR AXLE HUBSA±49
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RECOMMENDED TOOLS
SA0W4±01
EQUIPMENT
SA039±02
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Dial indicator 


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Torque wrench
SA±50±
SUSPENSION AND AXLE REAR AXLE HUB
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REAR AXLE HUB
COMPONENTS
SA03A±05
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SUSPENSION AND AXLE REAR AXLE HUBSA±51
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REAR AXLE CARRIER REMOVAL
SA0RY±03
1. JACK UP VEHICLE AND REMOVE REAR WHEEL
2. REMOVE REAR BRAKE CALIPER AND BRAKE DISC
(a) Remove the 2 bolts and remove the brake caliper from therear axle hub.
(b) Hang up the brake caliper using wire, etc.
(c) Place matchmarks on the brake disc and axle hub.
(d) Remove the brake disc.
3. 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.
4. CHECK AXLE HUB DEVIATION Using a dial indicator, check the deviation at the surface of
the axle hub outside the hub bolt.
Maximum:
0.07 mm (0.0028 in.)
If greater than the specified maximum, replace the axle hub.
SA±52
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SUSPENSION AND AXLE REAR AXLE HUB
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5. REMOVE DRIVE SHAFT LOCK NUT
(a) Install the brake disc and caliper.
(b) Remove the cotter pin and lock cap.
(c) While applying the brakes, remove the nut.
(d) Remove the brake caliper and disc.
6. REMOVE DRIVE SHAFT(See page SA±66)
7. REMOVE PARKING BRAKE SHOE
(See page BR±44)
8. REMOVE ABS SPEED SENSOR Remove the bolt and ABS speed sensor.
9. REMOVE REAR AXLE HUB WITH CARRIER
(a) Remove the 2 bolts.
(b) Remove the 2 bolts.
(c) Remove the hexagon bolt.
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SUSPENSION AND AXLE REAR AXLE HUBSA±53
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(d) Slide the backing plate to the outside and disconnect theparking brake cable.
(e) Remove the bolt and nut and disconnect the strut rod.
(f) Remove the nut.
(g) Using SST, disconnect the No.1 lower suspension arm. SST 09628±10011
NOTICE: Be careful not to damage the dust boot.
(h) Remove the nut.
SA±54
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SUSPENSION AND AXLE REAR AXLE HUB
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(i) Using SST, disconnect the No.2 lower suspension arm.SST 09610±20012
NOTICE: Be careful not to damage the dust boot.
(j) Remove the nut.
(k) Using SST, disconnect the upper arm and remove the axle carrier.
SST 09628±62011
NOTICE: Be careful nut to damage the dust boot.
AXLE HUB DISASSEMBLY
SA0RZ±02
1. REMOVE DUST DEFLECTORUsing a screwdriver, remove the dust deflector.
2. REMOVE OIL SEAL (INSIDE)
(a) Mount the axle carrier in a vise. HINT: Use a set of soft jaws in the vise to protect the axle carri-
er.
NOTICE: Do not tighten the vise too tight.
(b) Using SST, remove the oil seal. SST 09308±00010
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SUSPENSION AND AXLE REAR AXLE HUBSA±55
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3. REMOVE AXLE HUB FROM AXLE CARRIER
(a) Using SST, remove the axle hub.SST 09950±20017
(b) Remove the backing plate.
(c) Using SST, remove the inner race (outside) from the axle
hub.
SST 09950±20017
4. REMOVE OIL SEAL (OUTSIDE) Using SST, remove the oil seal.
SST 09308±00010
5. REMOVE BEARING
(a) Using snap ring pliers, remove the snap ring.
(b) Temporarily install the inner race (inside) to the bearing.
(c) Using SST and a press, remove the bearing. SST 09608±35014 (09608±06020, 09608±06100)
SA±56
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AXLE HUB ASSEMBLY
SA0S0±03
1. INSTALL BEARING
(a) Using SST, install the bearing to the axle carrier.SST 09309±36010, 09608±32010
NOTICE: If the inner races come loose from the bearing
outer race, be sure to install them on the same side as be-
fore.
(b) Using snap ring pliers, install the snap ring.
2. INSTALL OIL SEAL (OUTSIDE)
(a) Install the inner race (outside).
(b) Using SST, install a new oil seal. SST 09608±32010
(c) Coat MP grease to the oil seal lip.
NOTICE: Be careful not to damage the oil seal.
3. INSTALL AXLE HUB
(a) Temporarily install the backing plate.
(b) Install the inner race (inside).
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