Lexus SC300 / Lexus SC400. Service 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.
–
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
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
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