Lexus RX300 (MCU15). Manual - part 519

R11651

Cylinder End
Stopper

Wire

SST

F05626

Brass Bar

Bushing

F05627

SST

Oil Seal

SR–38

–

STEERING

POWER STEERING GEAR

LEXUS RX300   (RM785E)

15.

REMOVE CYLINDER END STOPPER

(a)

Using SST, turn the cylinder end stopper clockwise until
the wire end is visible through the service hole.
SST

09631–10021

(b)

Using SST, turn the cylinder end stopper counterclock-
wise, and remove the wire and cylinder end stopper.
SST

09631–10021

16.

REMOVE STEERING RACK AND BUSHING

(a)

Using a brass bar and a hammer, tap out the steering rack
with the bushing.

(b)

Remove the bushing from the steering rack.

(c)

Remove the O–ring from the bushing.

17.

REMOVE OIL SEAL

Using SST, press out the oil seal.

SST

09950–60010 (09951–00290),
09950–70010 (09951–07360)

NOTICE:
Be careful not to damage the rack housing.

SR1CE–01

R10072

Dial Indicator

–

STEERING

POWER STEERING GEAR

SR–39

LEXUS RX300   (RM785E)

INSPECTION

INSPECT STEERING RACK
(a)

Using a dial indicator, check the steering 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.

SR1CF–01

F01792

Press

SST

Oil Seal

Bearing

W03560

Press

SST

Oil Seal

SST

F12878

SST

Bearing

SST

F01794

Brass Bar

Bearing

F01795

Press

SST

Bearing

SR–40

–

STEERING

POWER STEERING GEAR

LEXUS RX300   (RM785E)

REPLACEMENT

NOTICE:
When using a vise, do not overtighten it.
1.

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 (09951–00250),
09950–70010 (09951–07200)

(b)

Coat a new oil seal lip with power steering fluid.

(c)

Using SST, press in the oil seal.
SST

09950–60010 (09951–00180, 09951–00320,
09952–06010), 09950–70010 (09951–07200)

NOTICE:
Make sure that the oil seal is installed facing in the correct
direction.

(d)

Coat a new bearing with molybdenum disulfide lithium
base grease.

(e)

Using SST, press in the bearing.
SST

09950–60010 (09951–00180, 09951–00340,
09952–06010),  09950–70010 (09951–07200)

2.

IF NECESSARY, REPLACE 2 BEARINGS

(a)

Using a brass bar and a hammer, tap out the bearing from
the rack housing.

(b)

Using SST, press out the bearing from the rack housing.
SST

09950–60010 (09951–00270),
09950–70010 (09951–07200)

F12879

Bearing

SST

Press

SST

F01797

Bearing

SST

Press

F01798

Bushing

SST

SST

Oil Seal

F03863

Press

Oil Seal

SST

SST

R10955

–

STEERING

POWER STEERING GEAR

SR–41

LEXUS RX300   (RM785E)

(c)

Coat a new bearing with molybdenum disulfide lithium
base grease.

(d)

Using SST, press in the bearing.
SST

09950–60010 (09951–00250, 09951–00310,
09952–06010),  09950–70010 (09951–07200)

(e)

Coat a new bearing with molybdenum disulfide lithium
base grease.

(f)

Using SST, press in the bearing.
SST

09950–60010 (09951–00320), 
09950–70010 (09951–07200)

3.

IF NECESSARY, REPLACE OIL SEAL

(a)

Using SST, remove the oil seal from the bushing.
SST

09527–20011, 09612–24014 (09613–22011)

NOTICE:
Be careful not to damage the bushing.

(b)

Coat a new oil seal lip with power steering fluid.

(c)

Using SST, press in the oil seal.
SST

09950–60010 (09951–00260, 09951–00400,
09952–06010)

NOTICE:
Make sure that the oil seal is installed facing in the correct
direction.

4.

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 teflon ring.
(b)

Coat a new O–ring with power steering fluid and install it
to the steering rack.