Page 1

SR-3 STEERING

-

DRIVE BELT

DRIVE BELT SR05O-06

INSPECTION

P06717

DENSO

Borroughs

INSPECT DRIVE BELT (a) Visually check the belt for excessive wear, frayed cords, etc. If any defect has been found, replace the drive belt. HINT: Cracks on the rib side of a drive belt are considered acceptable. If the missing chunks from the ribs are found on the drive belt, it should be replaced. (b) Measure the belt deflection. Pressing force: 98 N (10 kgf, 221 lbf) New belt: 8 to 10 mm (0.315 to 0.394 in.) Used belt: 11 to 14 mm (0.433 to 0.551 in.) If the belt deflection is not as specified, adjust it.

(c)

Using a belt tension gauge, measure the belt tension. Belt tension gauge: DENSO BTG-20 (95506-00020) Borroughs No. BT-33-73F Drive belt tension: New belt: 132 - 154 lb Used belt: 55 - 88 lb

If the belt tension is not as specified, adjust it. Z00038

HINT:   CORRECT

WRONG

WRONG

 

P06723



”New belt” refers to a belt which has been used less than 5 minutes on a running engine. ”Used belt” refers to a belt which has been used on a running engine for 5 minutes or more. After installing a belt, check that it fits properly in the ribbed grooves. Check with your hand to confirm that the belt has not slipped out of the groove on the bottom of the pulley. After installing a new belt, run the engine for about 5 minutes and recheck the belt tension.

Author:

Date:

1399


SR-4 STEERING

-

POWER STEERING FLUID

POWER STEERING FLUID SR05P-13

BLEEDING 1. 2.

CHECK FLUID LEVEL (See page SR-5 ) JACK UP FRONT OF VEHICLE AND SUPPORT IT WITH STANDS 3. TURN STEERING WHEEL With the engine stopped, turn the wheel slowly from lock to lock several times. 4. LOWER VEHICLE 5. START ENGINE Run the engine at idle for a few minutes. 6. TURN STEERING WHEEL (a) With the engine idling, turn the wheel to left or right full lock position and keep it there for 2 - 3 seconds, then turn the wheel to the opposite full lock position and keep it there for 2 - 3 seconds. (b) Repeat (a) several times. 7. STOP ENGINE

Normal

8. CHECK FOR FOAMING OR EMULSIFICATION If the system has to be bled twice specifically because of foaming or emulsification, check for fluid leaks in the system. 9. CHECK FLUID LEVEL (See page SR-5 )

Abnormal

R11741

2001 SIENNA (RM787U)

Author:

Date:

1400


SR-5 STEERING

-

POWER STEERING FLUID SR05Q-14

INSPECTION HOT

COLD

R11740

Normal

1. (a) (b)

CHECK FLUID LEVEL Keep the vehicle level. 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 system (See page SR-4 ).

Abnormal

R11741

(f)

5 mm (0.2 in.) or less

Engine Idling

Engine Stopped R11786

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.

2001 SIENNA (RM787U)

Author:

Date:

1401


SR-6 STEERING

-

POWER STEERING FLUID

2. (a)

CHECK STEERING FLUID PRESSURE Disconnect the pressure feed tube from the PS gear (See page SR-37 ). (b) Connect SST, as shown in the illustration below. SST 09640-10010 (09641-01010, 09641-01020, 09641-01030) NOTICE: Check that the valve of the SST is in the open position.

Attachment

SST

Attachment

OUT IN Pressure Feed Tube

F03844

(c) (d) (e)

Bleed the power steering system (See page SR-4 ). Start the engine and run it at idle. Turn the steering wheel from lock to lock several times to boost fluid temperature. Fluid temperature: 80 °C (176 °F)

2001 SIENNA (RM787U)

Author:

Date:

1402


SR-7 STEERING

-

POWER STEERING FLUID

(f)

Oil Reservoir PS Gear

Closed PS Vane Pump SST

With the engine idling, close the valve of the SST and observe the reading on the SST. Minimum fluid pressure: 7,845 kPa (80 kgf/cm2, 1,138 psi) NOTICE:  Do not keep the valve closed for more than 10 seconds.  Do not let the fluid temperature become too high.

Z15498

Oil Reservoir PS Gear

Open PS Vane Pump SST

(g) (h)

With the engine idling, open the valve fully. Measure the fluid pressure at engine speeds of 1,000 rpm and 3,000 rpm. Difference fluid pressure: 490 kPa (5 kgf/cm2, 71 psi) or less NOTICE: Do not turn the steering wheel.

Z15499

(i)

Oil Reservoir Lock Position PS Gear

Open PS Vane Pump SST Z15500

With the engine idling and valve fully opened, turn the steering wheel to full lock position. Minimum fluid pressure: 7,845 kPa (80 kgf/cm2, 1,138 psi) NOTICE:  Do not maintain lock position for more than 10 seconds.  Do not let the fluid temperature become too high. (j) Disconnect the SST. SST 09640- 10010 (09641- 01010, 09641- 01020, 09641-01030) (k) Connect the pressure feed tube to the PS gear (See page SR-53 ). (l) Bleed the power steering system (See page SR-4 ).

2001 SIENNA (RM787U)

Author:

Date:

1403


SR-34 STEERING

-

POWER STEERING GEAR

POWER STEERING GEAR SR064-08

COMPONENTS 19 (190, 14)

Stabilizer Bar

19 (190, 14)

10 (100, 7)

Intermediate Shaft Assembly Clamp Plate 35 (360, 26)

25 (250, 18) *27 (280, 20)

181 (1,850, 134)

49 (500, 36)

Return Tube Pressure Feed Tube Cotter Pin 181 (1,850, 134)

PS Gear Assembly 49 (500, 36)

Cotter Pin N·m (kgf·cm, ft·lbf) : Specified torque  Non-reusable part * For use with SST

F03108

2001 SIENNA (RM787U)

Author:

Date:

1430


SR-35 STEERING

-

POWER STEERING GEAR

Rack Boot Clip

Tie Rod End

Rack Housing No. 2 Grommet  Clamp

Rack Housing No. 2 Bracket

Lock Nut 74 (750, 54)

Rack Housing  Claw Washer 83 (850, 61) * 60 (610, 44)

Rack End Steering Rack

 O-ring  Teflon Ring  Oil Seal Rack End  Claw Washer Cylinder End Stopper Bushing 83 (850, 61) * 60 (610, 44)

Tie Rod End

 Wire

Lock Nut

 Oil Seal

74 (750, 54)

 O-ring

Rack Boot

Clip

N·m (kgf·cm, ft·lbf) : Specified torque  Non-reusable part Molybdenum disulfide lithium base grease Power steering fluid * For use with SST

 Clamp

W04225

2001 SIENNA (RM787U)

Author:

Date:

1431


SR-36 STEERING

13 (130, 9) * 12 (120, 9)

-

POWER STEERING GEAR

13 (130, 9) * 12 (120, 9)

18 (180, 13)

Turn Pressure Tube

 O-ring



Dust Seal

13 (130, 9) * 12 (120, 9)

13 (130, 9) * 12 (120, 9)

 Control Valve Housing

 O-ring Turn Pressure Tube  Oil Seal  Bearing Control Valve Assembly  Teflon Ring

 Rack Guide Spring Cap Lock Nut 69 (700, 51) * 50 (510, 37)

 Oil Seal  Bearing  Gasket

 Rack Guide Spring Cap Rack Guide Spring

Rack Housing  Bearing

Rack Guide Sub-assembly

 Self-locking Nut 25 (250, 18)

N·m (kgf·cm, ft·lbf) : Specified torque  Non-reusable part  Precoated part Molybdenum disulfide lithium base grease Power steering fluid * For use with SST

 Rack Housing Cap 59 (600, 43)

F13545

2001 SIENNA (RM787U)

Author:

Date:

1432


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SR-38 STEERING

-

POWER STEERING GEAR SR066-08

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

SST

W04228

2. (a) (b)

REMOVE 2 TURN PRESSURE TUBES Using SST, remove the tube. SST 09023-38200 Remove the 4 O-rings from the 2 turn pressure tubes.

SST

F12859

3. (a) (b) (c) Matchmarks

REMOVE RH AND LH TIE ROD ENDS AND LOCK NUTS Place matchmarks on the tie rod end and rack end. Loosen the lock nut, and remove the tie rod end and lock nut. Employ the same manner described above to the other side.

R00429

4.

W04230

Claw washer

REMOVE RH AND LH CLIPS, RACK BOOTS AND CLAMPS (a) Using a screwdriver, loosen the clamp. NOTICE: Be careful not to damage the 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 WASHERS (a) Using a screwdriver and a hammer, unstake the claw washer. NOTICE: Avoid any impact on the steering rack.

R11644

2001 SIENNA (RM787U)

Author:

Date:

1434


SR-39 STEERING

-

POWER STEERING GEAR

(b)

SST R11645

Rack Guide Spring Cap Lock Nut SST

F13546

Using a spanner (24 mm) to 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 illustration. (c) Remove the claw washer from the rack end. (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 illustration. 7. REMOVE RACK GUIDE SPRING CAP, RACK GUIDE SPRING, RACK GUIDE SUB-ASSEMBLY (a) Using a hexagon wrench (21 mm), remove the rack guide spring cap. (b) Remove the rack guide spring and rack guide sub-assembly. 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 COVER

SST

R11648

2001 SIENNA (RM787U)

Author:

Date:

1435

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2000 Toyota Sienna Service Repair Manual  

2000 Toyota Sienna Service Repair Manual  

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