Page 1778 of 1897
R11740
HOT
COLD
SR0EF-04
R11741
Normal Abnormal
R11786Engine Idling
Engine Stopped 5 mm (0.20 in.)
or less
- STEERINGPOWER STEERING FLUID
SR-5
1468 Author: Date:
2001 AVALON (RM808U)
INSPECTION
1. CHECK FLUID LEVEL
(a) Keep the vehicle level.
(b) With the engine stopped, check the fluid level in the oil
reservoir.
If necessary, add fluid.
Fluid: ATF DEXRON® II or III
HINT:
Check that the fluid level is within the HOT LEVEL range on the
reservoir. If the fluid is cold, check that it is within the COLD
LEVEL range.
(c) Start the engine and run it at idle.
(d) Turn the steering wheel from lock to lock several times to
boost fluid temperature.
Fluid temperature: 80°C (176°F)
(e) Check for foaming or emulsification.
If there is foaming or emulsification, bleed power steering sys-
tem (See page SR-4).
(f) With the engine idling, measure the fluid level in the oil
reservoir.
(g) Stop the engine.
(h) Wait a few minutes and remeasure the fluid level in the oil
reservoir.
Maximum fluid level rise: 5 mm (0.20 in.)
If a problem is found, bleed power steering system (See page
SR-4).
(i) Check the fluid level.
Page 1779 of 1897
R14662
Attachment
IN
OUT Pressure Feed Tube SST
Z15498
Oil
Reservoir
PS Vane
Pump PS Gear
SST Closed SR-6
- STEERINGPOWER STEERING FLUID
1469 Author: Date:
2001 AVALON (RM808U)
2. CHECK STEERING FLUID PRESSURE
(a) Disconnect the pressure feed tube (See page SR-27).
(b) Connect SST to pressure feed tubes, as shown in the il-
lustration below.
SST 09640- 10010 (09641- 01010, 09641- 01030,
09641-01060)
NOTICE:
Check that the valve of the SST is in the open position.
(c) Bleed the power steering system (See page SR-4).
(d) Start the engine and run it at idle.
(e) Turn the steering wheel from lock to lock several times to
boost fluid temperature.
Fluid temperature: 80 °C (176 °F)
(f) With the engine idling, close the valve of the SST and ob-
serve the reading on the SST.
Minimum fluid pressure:
7,845 kPa (80 kgf/cm
2, 1,138 psi)
NOTICE:
Do not keep the valve closed for more than 10 se-
conds.
Do not let the fluid temperature become too high.
Page 1780 of 1897
Z15499
Oil
Reservoir
PS Vane
Pump PS Gear
SST Open
Z15500
Oil
Reservoir
PS Vane
Pump PS Gear
SST Open Lock Position
- STEERINGPOWER STEERING FLUID
SR-7
1470 Author: Date:
2001 AVALON (RM808U)
(g) With the engine idling, open the valve fully.
(h) Measure the fluid pressure at engine speeds of 1,000 rpm
and 3,000 rpm.
Difference fluid pressure:
490 kPa (5 kgf/cm
2, 71 psi) or less
NOTICE:
Do not turn the steering wheel.
(i) With the engine idling and valve fully opened, turn the
steering wheel to full lock.
Minimum fluid pressure:
7,845 kPa (80 kgf/cm
2, 1,138 psi)
NOTICE:
Do not maintain lock position for more than 10 se-
conds.
Do not let the fluid temperature become too high.
(j) Disconnect the SST.
SST 09640- 10010 (09641- 01010, 09641- 01030,
09641-01060)
(k) Connect the pressure feed tube (See page SR-35).
(l) Bleed the power steering system (See page SR-4).
Page 1782 of 1897
Z19562
O-Ring
* For use with SST Non-reusable partRack Housing
No. 2 Grommet
Rack HousingRack Boot
Clip
Tie Rod End
Lock Nut
Rack End
Steering Rack Rack Housing
No. 2 Bracket Clamp
Claw Washer
Teflon Ring
Oil Seal
Wire
Oil Seal
Molybdenum disulfide lithium base grease
Power steering fluidCylinder End Stopper
Bushing Claw Washer Rack End
83 (850, 61)
*60 (610, 44)
Clamp Rack Boot Clip
Lock Nut Tie Rod End
74 (750, 54)
74 (750, 54)
N´m (kgf´cm, ft´lbf) : Specified torque
O-Ring
83 (850, 61)
*60 (610, 44)
SR-38
- STEERINGPOWER STEERING GEAR
1501 Author: Date:
2001 AVALON (RM808U)
Page 1783 of 1897
F09751
Non-reusable part Oil Seal O-Ring
Molybdenum disulfide lithium base grease
Power steering fluid Precoated part O-Ring Turn Pressure Tube
Dust Seal
Control Valve AssemblyControl Valve
Housing Turn Pressure Tube
Oil Seal
Bearing
Teflon Ring
Bearing
Gasket
Rack Guide Spring
Rack Guide Sub-assembly
Rack Housing
Bearing Rack Guide
Spring Cap Lock Nut
Rack Guide
Spring Cap
Self-locking Nut
Rack Housing Cap
13 (130, 9)
*12 (120, 9)
18 (180, 13)
18 (180, 13)
69 (700, 51)
*50 (510, 37)
25 (250, 18)
59 (600, 43)
N´m (kgf´cm, ft´lbf): Specified torque
* For use with SST
- STEERINGPOWER STEERING GEAR
SR-39
1502 Author: Date:
2001 AVALON (RM808U)
Page 1786 of 1897
R11553
Matchmarks
R11554
Vinyl TapePress
Shop Rag
R11649
Matchmarks
R11650
R11651
SSTWire
Cylinder End
Stopper
- STEERINGPOWER STEERING GEAR
SR-43
1506 Author: Date:
2001 AVALON (RM808U)
11. REMOVE CONTROL VALVE HOUSING WITH CON-
TROL VALVE ASSEMBLY
(a) Place matchmarks on the control valve housing and rack
housing.
(b) Remove the 2 bolts and control valve housing.
(c) Remove the gasket from the rack housing.
12. REMOVE CONTROL VALVE ASSEMBLY
(a) To prevent oil seal lip damage, wind vinyl tape on the ser-
rated part of the control valve shaft.
(b) Press out the control valve assembly with the oil seal.
NOTICE:
Place a shop rag between the valve housing and the
blocks.
Be careful not to drop the valve assembly.
Be careful not to damage the oil seal lip.
13. REMOVE OIL SEAL
Remove the oil seal from the control valve assembly.
14. REMOVE RACK HOUSING NO. 2 BRACKET AND
RACK HOUSING NO. 2 GROMMET
(a) Place matchmarks on the rack housing No. 2 bracket and
rack housing.
(b) Using a screwdriver, pry the clamp of the rack housing No.
2 bracket and remove the rack housing No. 2 bracket.
(c) Remove the rack housing No. 2 grommet from the rack
housing No. 2 bracket.
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
Page 1787 of 1897
R11555
Brass Bar
Bushing
F01791
SST
Oil Seal
SR-44
- STEERINGPOWER STEERING GEAR
1507 Author: Date:
2001 AVALON (RM808U)
16. REMOVE STEERING RACK AND BUSHING
(a) Using a brass bar and 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)
Page 1791 of 1897
W03561
Press
SST
Oil Seal SST
SR0RW-03
W02101
SST
Rack Teeth End
R11574
Vinyl TapeBushing
- STEERINGPOWER STEERING GEAR
SR-49
1512 Author: Date:
2001 AVALON (RM808U)
REASSEMBLY
NOTICE:
When using a vise, do not overtighten it.
1. COAT PARTS INDICATED BY ARROWS WITH POWER
STEERING FLUID OR MOLYBDENUM DISULFIDE
LITHIUM BASE GREASE (See page SR-37)
2. INSTALL OIL SEAL
(a) Coat a new oil seal lip with power steering fluid.
(b) Using SST, press in the oil seal.
SST 09950- 60010 (09951- 00240, 09951- 00430,
09952-06010), 09950-70010 (09951-07360)
NOTICE:
Make sure that the oil seal is installed facing in the
correct direction.
Take care that the oil seal does not get reversed as
you install it.
3. INSTALL STEERING RACK
(a) Install SST to the steering rack.
SST 09631-33010
HINT:
If necessary, scrape the burrs off the steering rack teeth end
and burnish.
(b) Coat the SST with power steering fluid.
(c) Install the steering rack into the rack housing.
NOTICE:
Be careful not to damage the oil seal lip.
(d) Remove SST.
SST 09631-33010
4. INSTALL BUSHING
(a) Coat a new O-ring with power steering fluid and install it
to the bushing.
(b) To prevent oil seal lip damage, wind vinyl tape on the
steering rack end, and apply power steering fluid.
(c) Install the bushing.
NOTICE:
Make sure that the bushing is installed facing in the
correct direction.
Be careful not to damage the oil seal lip.
