Toyota Automatic Transmission A340 Series. Repair Manual - part 36

TF0478

TF0479

TF0480

AT8503

Push

Switch position

Specified

Push

Continuity

Free

No continuity

TF0477

23. REMOVE INPUT SHAFT, THRUST BEARING AND

RACE

24. REMOVE PLANETARY RING GEAR

(a)

Using a screwdriver, remove the snap ring.

(b)

Remove the plug, spring and pin.

(c)

Remove the planetary ring gear.

25. INSPECT TRANSFER INDICATOR SWITCH

Check that there is continuity between terminals as shown.

If operation is not as specified, replace the switch.

TF−10

−

TRANSFER (A340F)

Disassembly of Transfer

Switch position

Specified

Push

Continuity

Free

No continuity

AT8503

Push

26. INSPECT TRANSFER L4 POSITION SWITCH

Check that there is continuity between terminals as shown.

If operation is not as specified, replace the switch.

−

TRANSFER (A340F)

Disassembly of Transfer

TF−11

300 (22, 29)

TF0482

♦ Non−reusable part

L Precoated part

TF0481

kg−cm (ft−lb, N−m) : Specified torque

LStraight Screw Plug

Spring

Ball

Seat

♦ O−Ring

Oil Pump Plate

Oil Pump Body

Drive Rotor

75 (65 in.−lb, 7.4)

Driven Rotor

TF0483

SST

COMPONENT PARTS

Oil Pump Body

COMPONENTS

DISASSEMBLY OF OIL PUMP BODY

1.

CHECK OPERATION OF OIL PUMP
Install the oil pump drive gear to the drive rotor, check

that the drive rotor turns smoothly.

2.

REMOVE STRAIGHT SCREW PLUG, SPRING, BALL

AND SEAT
(a)

Using SST, remove the straight screw plug.

SST

09043−38100

TF−12

−

TRANSFER (A340F)

Component Parts (Oil Pump Body)

TF0547

SST

TF0485

TF0486

TF0487

TF0546

(b)

Using a magnetic finger, remove the spring and ball.

(c)

Using SST, pull out the seat.

SST

09921−00010

(d)

Remove the O−ring from the seat.

3.

REMOVE OIL PUMP PLATE
(a)

Using a torx socket wrench, unscrew the three torx

screws.

(Torx socket wrench T30 09042 − 00010)

(b)

Remove the oil pump plate.

4.

REMOVE DRIVE ROTOR AND DRIVEN ROTOR

INSPECTION OF OIL PUMP BODY

1.

CHECK BODY CLEARANCE OF DRIVEN ROTOR
Push the driven rotor to one side of the body. 

Using a feeler gauge, measure the clearance.

Standard clearance: 

0.10 − 0.16 mm

(0.0039 − 0.0063 in.)

Maximum clearance: 

0.16 mm (0.0063 in.)

If the clearance exceeds the limit, replace the drive rotor,

driven rotor or pump body.

2.

CHECK TIP CLEARANCE OF BOTH ROTORS
Using a feeler gauge, measure the clearance between

both rotor tips.

Standard clearance: 

0.08 − 0.16 mm

(0.0031 − 0.0063 in.)

Maximum clearance: 

0.16 mm (0.0063 in.)

If the clearance exceeds the limit, replace the drive ro-

tor, driven rotor or pump body.

−

TRANSFER (A340F)

Component Parts (Oil Pump Body)

TF−13

TF0489

TF0490

TF0485

TF0484

TF0488

3.

CHECK SIDE CLEARANCE OF BOTH ROTORS
Using a steel straight edge and feeler gauge, measure

the clearance between the rotors and straight edge.

Standard clearance: 

0.03 − 0.08 mm

(0.0012 − 0.0031 in.)

Maximum clearance: 

0.08 mm (0.0031 in.)

If the clearance exceeds the limit, replace the drive rotor,

driven rotor or pump body.

ASSEMBLY OF OIL PUMP BODY

1.

INSTALL OIL PUMP DRIVE ROTOR AND DRIVEN

ROTOR
(a)

Apply gear oil the both rotors.

(b)

Install the driven rotor.

(c)

Install the drive rotor.

2.

INSTALL OIL PUMP PLATE
(a)

Install the oil pump plate.

(b)

Using a torx socket wrench, tighten the three torx

screws.

(Torx socket wrench T30 09042 − 00010)

Torque: 75 kg−cm (65 in.−lb, 7.4 N−m)

3.

INSTALL SEAT, BALL, SPRING AND STRAIGHT

SCREW PLUG
(a)

Install a new O−ring to the seat.

(b)

Install the seat, ball and spring.

HINT: When installing the seat, push the seat until it

touches the bottom of the hole in the body.

TF−14

−

TRANSFER (A340F)

Component Parts (Oil Pump Body)

TF0482

TF0483

SST

(c)

Apply liquid sealer to the plug.

Sealant:  Part No. 08833 − 00080, THREE BOND

1344, LOCTITE 242 or equivalent

(d)

Using SST, torque the plug.

SST

09043−38100

Torque: 300 kg−cm (22 ft−lb, 29 N−m)

4.

CHECK OPERATION OF OIL PUMP
Install the oil pump drive gear to the drive rotor, check that

the drive rotor turns smoothly.

−

TRANSFER (A340F)

Component Parts (Oil Pump Body)

TF−15

TF0512

TF0513

SST

Steel Bar

TF0511

Driven Sprocket

Front Bearing

Rear Bearing

Driven Sprocket

COMPONENTS

DISASSEMBLY OF DRIVEN SPROCKET

1.

REMOVE FRONT BEARING
Using a press, remove the front bearing.

2.

REMOVE REAR BEARING
Using SST and a press, remove the rear bearing.

SST

09950−00020

TF−16

−

TRANSFER (A340F)

Component Parts (Driven Sprocket)

TF0515

Shielded Side

TF0514

ASSEMBLY OF DRIVEN SPROCKET

1.

INSTALL REAR BEARING
Using a press, install the rear bearing.

2.

INSTALL FRONT BEARING
Using a press, install the front bearing.

HINT: Make sure to install the bearing in the correct 

direction.

−

TRANSFER (A340F)

Component Parts (Driven Sprocket)

TF−17