Lexus SC300 / Lexus SC400. Manual - part 751

(b)  Using SST, remove the oil seal.

SST 09612–30012

NOTICE: Be careful not to damage the rack housing.

HINT: When using the SST, apply the tips of the SST to the
cutouts in the housing.

(c)  Coat a new oil seal lip with power steering fluid.
(d)  Using SST, install the new oil seal.

SST 09620–30010 (09624–30010, 09631–00020)

NOTICE: Ensuse that the oil seal facing the correct direction.

(e)  Using SST, press in a new bearing.

SST 09620–30010 (09626–30010, 09631–00020)

3. 

IF NECESSARY, REPLACE CONTROL VALVE HOUSING
OIL SEAL AND BEARING

(a)  Using SST, press out the oil seal with the bearing.

SST 09630–24013 (09620–24010), 09631–12020

(b)  Coat the lip of a new oil seal with power steering fluid.
(c)  Using SST, press in the new oil seal.

SST 09630–24013 (09620–24020),
09631–12020

NOTICE: Ensure that the oil seal facing the correct direction.

SR–154

–

STEERING

POWER STEERING

(d)  Using SST, press in a new bearing.

SST 09630–24013 (09620–24030), 09631–12020

4.  IF NECESSARY, REPLACE STEERING RACK TEFLON

RING AND O–RING

(a)  Using a screwdriver, remove the teflon ring and O–ring.

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.

(c)  Expand a new teflon ring with your fingers.

NOTICE: Be careful not to over–expand the teflon ring.

(d)  Install the teflon ring to the rack.
(e) Coat 

the teflon ring with power steering fluid and snug it down

with your fingers.

5.  IF NECESSARY, REPLACE CONTROL VALVE TEFLON

RINGS

(a)  Using a screwdriver, remove the 4 teflon rings.

NOTICE: Be careful not to damage the grooves for the teflon

ring.

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STEERING

POWER STEERING

SR–155

(b)  Expand 4 new teflon rings with your fingers.

NOTICE: Be careful not to over–expand the teflon ring.

(c)  Install the 4 teflon rings to the control valve.
(d)  Coat the 4 teflon rings with power steering fluid and snug

them down with your fingers.

(e)  Carefully slide the tapered end of the SST over the teflon

rings to seat the rings.
SST 09631–20081

NOTICE: Be careful not to damage the teflon rings.

6. IF 

NECESSARY, 

REPLACE 

HYDRAULIC REACTION

CHAMBER TEFLON RINGS AND O–RINGS

(a) Using 

a 

screwdriver, remove the 2 teflon rings and 2 O –rings.

NOTICE: Be careful not to damage the grooves for the teflon

ring.

(b)  Coat 2 new O–rings with power steering fluid, and install

them.

(c)  Expand 2 new teflon rings with your fingers.

NOTICE: Be careful not to over–expand the teflon rings.

(d)  Install the 2 teflon rings to the control valve.
(e) Coat 

the teflon rings with power steering fluid, and snug them

down with your fingers.

(f)  Carefully slide the tapered end of the SST over the teflon

rings to seat the rings.
SST 09631–32020

NOTICE: Be careful not to damage the teflon rings.

SR–156

–

STEERING

POWER STEERING

7. IF 

NECESSARY, 

REPLACE 

PRESSURE 

CONTROL

VALVE

(a)  Using a hexagon wrench, remove the 3 bolts.

(b)  Remove the 3 O–rings from the housing.
(c)  Coat 3 new O–rings with power steering fluid, and install

them on the control valve housing.

(d) Using 

a 

hexagon wrench, install a new pressure control valve

with the 3 bolts.

Torque: 18 N

⋅

m (185 kgf

⋅

cm, 13 ft

⋅

lbf)

STEERING GEAR HOUSING ASSEMBLY

SR0P0–01

1.  COAT WITH POWER STEERING FLUID OR

MOLYBDENUM DISULPHIDE LITHIUM BASE GREASE
(See page 

SR–148

)

2. 

INSTALL RACK HOUSING OIL SEAL AND SPACER

(a)  Coat a new oil seal lip with power steering fluid.
(b)  Insert SST into the oil seal and spacer.

SST 09631–12020, 09631–32010

NOTICE:

•

Make sure you install the oil seal facing the correct

direction.

•

Take care that the oil seal does not get reversed as you

install it.

(c)  Softly tap in the spacer and oil seal.

–

STEERING

POWER STEERING

SR–157