Lexus SC300 / Lexus SC400. Manual — part 743
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STEERING
POWER STEERING
SR–111
RECOMMENDED TOOLS
SR0FW–03
LUBRICANT
SR015–05
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Item
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Capacity
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Classification
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Power steering fluid
1 0 liters (1 1 US qts 0 9 lmp qts)
ATF DEXRON
II
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Total
1.0 liters (1.1 US qts, 0.9 lmp.qts)
ATF DEXRON
II
EQUIPMENT
SR0FX–01
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Caliper gauge
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Power steering pump
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Dial indicator
Steering rack
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Micrometer
Power steering pump
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Oil pressure gauge
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Torque wrench
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Vacuum gauge
Gear housing
SSM (SPECIAL SERVICE MATERIALS)
SR0FY–01
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08833–00080
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Adhesive 1344,
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Rack housing cap
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THREE BOND 1344,
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Rack guide spring cap
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LOCTITE 242 or equivalent
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Rack guide spring cap lock nut
SR–112
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STEERING
POWER STEERING
ON–VEHICLE INSPECTION
CHECK IDLE–UP
SR0FZ–04
1.
WARM UP ENGINE
2.
TURN AIR CONDITIONER SWITCH OFF
3. CHECK
IDLE–UP
(a) Fully turn the steering wheel.
(b) Check that the engine rpm decreases when the air control
valve hose is pinched.
(c) Check that the engine rpm increases when the air control
valve hose is released.
FLUID LEVEL CHECK
SR0G0–03
1.
KEEP VEHICLE LEVEL
2.
BOOST FLUID TEMPERATURE
With the engine idling at 1,000 rpm or less, turn the steering
wheel from lock to lock several times to boost fluid tempera-
ture.
Fluid temperature:
80
°
C (176
°
F)
3. STOP
ENGINE
4.
CHECK FOR FOAMING OR EMULSIFICATION
HINT: Foaming and emulsification indicate either the exis-
tence of air in the system or that the fluid level is too low.
5.
CHECK FLUID LEVEL IN OIL RESERVOIR
Check the fluid level and add fluid if necessary.
Fluid:
ATF DEXRON
II
HINT: Check that the fluid level is within the HOT LEVEL of
the dipstick of the reservoir cap. If the fluid is cold, check that
it is within the COLD LEVEL of the dipstick.
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STEERING
POWER STEERING
SR–113
POWER STEERING FLUID
REPLACEMENT
SR0G1–04
1.
JACK UP FRONT OF VEHICLE AND SUPPORT IT WITH
STANDS
2.
REMOVE FLUID RETURN HOSE FROM OIL RESERVOIR
AND DRAIN FLUID INTO CONTAINER
NOTICE: Take care not to spill fluid on the drive belt.
3.
TURN STEERING WHEEL FROM LOCK TO LOCK WHILE
DRAINING FLUID
4.
FILL OIL RESERVOIR WITH FRESH FLUID
Fluid:
ATF DEXRON
II
5.
START ENGINE AND RUN IT AT 1,000 RPM
After 1 or 2 seconds, fluid will begin to discharge from the re-
turn hose. Stop the engine immediately at this time.
NOTICE: Take care that some fluid remains left in the oil reser-
voir.
6.
REPEAT STEPS 4 AND 5 FOUR OR FIVE TIMES UNTIL
THERE IS NO MORE AIR IN FLUID
7.
CONNECT RETURN HOSE TO OIL RESERVOIR
8.
BLEED POWER STEERING SYSTEM
(See page
)
SR–114
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STEERING
POWER STEERING
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