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 1781 of 1897
SR0ET-05
F09931
Stabilizer Bar
Clamp PlateNo. 1 Fuel Tube Protector
Intermediate Shaft
Sub-assembly
Return Tube
Pressure Feed Tube
PS Gear Assembly
* For use with SSTCotter Pin Non-reusable part
19 (190, 14)
19 (190, 14)
10 (100, 7)
35 (360, 26)
181 (1,850, 134)
181 (1,850, 134)
49 (500, 36)
49 (500, 36)N´m (kgf´cm, ft´lbf) : Specified torque
25 (250, 18)
*28 (290, 21)
Cotter Pin25 (250, 18)
*28 (290, 21)
O-Ring
Power steering fluid
- STEERINGPOWER STEERING GEAR
SR-37
1500 Author: Date:
2001 AVALON (RM808U)
POWER STEERING GEAR
COMPONENTS
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 1784 of 1897
SR0EV-05
W04228
SST
F13587
SST
R00429
Matchmarks
W04230
R11644
Claw Washer
- STEERINGPOWER STEERING GEAR
SR-41
1504 Author: Date:
2001 AVALON (RM808U)
DISASSEMBLY
NOTICE:
When using a vise, do not overtighten it.
1. SECURE PS GEAR ASSEMBLY IN VISE
Using SST, secure the PS gear assembly in a vise.
SST 09612-00012
2. REMOVE 2 TURN PRESSURE TUBES
(a) Using SST, remove the 2 turn pressure tubes.
SST 09023-38200
(b) Remove the 4 O-rings from the 2 turn pressure tubes.
3. REMOVE RH AND LH TIE ROD ENDS AND LOCK
NUTS
(a) Place matchmarks on the tie rod end and rack end.
(b) Loosen the lock nut, and remove the tie rod end and lock
nut.
(c) Employ the same manner described above to the other
side.
4. REMOVE RH AND LH CLIPS, RACK BOOTS AND
CLAMPS
(a) Using a screwdriver, loosen the clamp.
NOTICE:
Be careful not to damage the rack boot.
(b) Remove the clip and rack boot.
(c) Employ the same manner described above to the other
side.
HINT:
Mark the RH and LH rack boot.
5. REMOVE RH AND LH RACK ENDS AND CLAW WASH-
ERS
(a) Using a screwdriver and hammer, unstake the claw wash-
er.
NOTICE:
Avoid any impact on the steering rack.
Page 1785 of 1897
R11645
SST
R11646
SSTRack Guide
Spring Cap Lock Nut
R11647
SST Rack Guide
Spring Cap
R11648
SST SR-42
- STEERINGPOWER STEERING GEAR
1505 Author: Date:
2001 AVALON (RM808U)
(b) Using a spanner (24 mm) hold the steering rack steadily
and using SST, remove the rack end.
SST 09922-10010
NOTICE:
Use SST 09922-10010 in the direction shown in the illustra-
tion.
(c) Remove the claw washer.
(d) Employ the same manner described above to the other
side.
HINT:
Mark the RH and LH rack ends.
6. REMOVE RACK GUIDE SPRING CAP LOCK NUT
Using SST, remove the rack guide spring cap lock nut.
SST 09922-10010
NOTICE:
Use SST 09922-10010 in the direction shown in the illustra-
tion.
7. REMOVE RACK GUIDE SPRING CAP, RACK GUIDE
SPRING, RACK GUIDE SUB-ASSEMBLY
(a) Using SST, remove the rack guide spring cap.
SST 09631-10021
(b) Remove the rack guide spring and rack guide sub-as-
sembly.
8. REMOVE RACK HOUSING CAP
9. REMOVE SELF-LOCKING NUT
Using SST, stop the control valve shaft rotating and remove the
self-locking nut.
SST 09616-0001 1
10. REMOVE DUST SEAL
