Lexus GS300/400 (2000 year). Manual — part 233
F03650
Vinyl Tape
R06498
SST
F03651
Press
SST
F03666
Oil Seal
SST
SR–48
–
STEERING
POWER STEERING GEAR
2218
(b)
Wind vinyl tape to the control valve shaft.
(c)
Using a plastic hammer, tap out the valve assembly with
the nut from the control valve housing.
NOTICE:
Be careful not to damage the oil seal lip.
(d)
Remove the nut from the valve assembly.
NOTICE:
Be careful not to damage the oil seal lip.
(e)
Remove the O–ring from the nut.
12.
REMOVE CYLINDER END STOPPER AND SPACER
(a)
Using SST, remove the stopper.
SST
09631–20090
(b)
Remove the O–ring from the stopper.
13.
REMOVE STEERING RACK AND OIL SEAL
(a)
Using SST, press out the rack and oil seal.
NOTICE:
Take care not to drop the rack.
SST
09950–70010 (09951–07200)
(b)
Remove the oil seal from the rack.
14.
REMOVE OIL SEAL
Using SST, press out the oil seal.
SST
09950–60010 (09951–00280),
09950–70010 (09951–07360)
SR0E5–01
R10072
Dial Indicator
F03667
Press
SST
Oil
Seal
Bearing
SST
F03668
Press
Oil Seal
SST
SST
F03669
Press
Bearing
Oil Seal
SST
W01749
Press
SST
Oil Seal
–
STEERING
POWER STEERING GEAR
SR–49
2219
INSPECTION
1.
INSPECT STEERING RACK
(a)
Using a dial indicator, check the rack for runout and for
teeth wear and damage.
Maximum runout: 0.03 mm (0.0118 in.)
(b)
Check the back surface for wear and damage.
2.
IF NECESSARY, REPLACE OIL SEAL AND BEARING
(a)
Using SST, press out the oil seal and bearing from the
control valve housing.
SST
09950–60010 (09951–00260),
09950–70010 (09951–07150)
(b)
Coat a new oil seal lip with power steering fluid.
(c)
Using SST, press in the oil seal.
SST
09950–60010 (09951–00180, 09951–00330,
09952–06010), 09950–70010 (09951–07150)
NOTICE:
Make sure to install the oil seal facing the correct direction.
(d)
Coat a new bearing with molybdenum disulfide lithium
base grease.
(e)
Using SST, press in the bearing.
SST
09950–60010 (09951–00330),
09950–70010 (09951–07150)
3.
IF NECESSARY, REPLACE OIL SEAL
(a)
Using SST, press out the oil seal from the bearing guide
nut.
SST
09950–60010 (09951–00320),
09950–70010 (09951–07100)
W01750
SST
Oil Seal
SST
Press
F03655
Needle Roller
Bearing
R09561
Bearing
R11302
R16011
Bushing
SR–50
–
STEERING
POWER STEERING GEAR
2220
(b)
Coat a new oil seal lip with power steering fluid.
(c)
Using SST, press in the oil seal.
SST
09950–60010 (09951–00280, 09951–00360,
09952–06010), 09950–70010 (09951–07100)
NOTICE:
Make sure to install the oil seal facing the correct direction.
4.
INSPECT BEARING
(a)
Check the needle roller bearing of the rack housing for pit-
marks or damage.
If faulty, replace the rack housing.
(b)
Coat the inside of the bearing with molybdenum disulfide
lithium base grease.
5.
INSPECT BEARING
(a)
Check the bearing rotation condition and check for abnor-
mal noise.
If the bearing is worn or damaged, replace the control valve as-
sembly.
(b)
Coat the bearing with molybdenum disulfide lithium base
grease.
6.
INSPECT BUSHING
(a)
Check the inside of the bushing of the cylinder end stop-
per for cracks. If faulty, replace the bushing.
(b)
Apply molybdenum disulfide lithium base grease to the in-
side of the bushing.
7.
IF NECESSARY, REPLACE BUSHING
(a)
Using a screwdriver, remove the bushing from the cylin-
der end stopper.
NOTICE:
Be careful not to damage the cylinder end stopper.
(b)
Coat the inside of a new bushing with molybdenum disul-
fide lithium base grease.
(c)
Install the bushing.
R10955
R06172
N00401
R09564
Z06085
SST
–
STEERING
POWER STEERING GEAR
SR–51
2221
8.
IF NECESSARY, REPLACE TEFLON RING AND O–
RING
(a)
Using a screwdriver, remove the teflon ring and O–ring
from the steering rack.
NOTICE:
Be careful not to damage the groove for the ring.
(b)
Coat a new O–ring with power steering fluid and install it.
(c)
Expand a new teflon ring with your fingers.
NOTICE:
Be careful not to overexpand the ring.
(d)
Coat the ring with power steering fluid.
(e)
Install the ring to the rack, and settle it down with your fin-
gers.
9.
IF NECESSARY, REPLACE TEFLON RINGS
(a)
Using a screwdriver, remove the 4 rings from the control
valve assembly.
NOTICE:
Be careful not to damage the grooves for the ring.
(b)
Expand 4 new rings with your fingers.
NOTICE:
Be careful not to overexpand the ring.
(c)
Coat the rings with power steering fluid.
(d)
Install the rings to the control valve assembly, and settle
them down with your fingers.
(e)
Carefully slide the tapered end of SST over the rings until
the ring fits to the steering rack.
SST
09631–20081
NOTICE:
Be careful not to damage the rings.
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