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Toyota Automatic Transmission A340 Series. Repair Manual - part 29

AT1473

AT1469

AT1472

AT7977

AT4852

REMOVE TRANSFER MANUAL VALVE LEVER AND

SHAFT
(a)

Using a chisel, cut off the spacer and remove it

from the shaft.

(b)

Using a pin punch and hammer, drive out the pin.

(c)

Slide the shaft out through the case and remove

the manual valve lever.

(d)

Using a screwdriver, remove the oil seal from the

case.

REMOVE SPRING, SHAFT AND PARKING LOCK

PAWL
(a)

Remove the spring, shaft and parking lock pawl.

(b)

Remove the E−ring from the shaft.

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AUTOMATIC TRANSMISSION (A340H)

Component Parts (Transfer Case and Front Support)

AT−221

AT1627

AT1507

AT1472

AT1474

SST

AT1507

REMOVE OIL SEAL RINGS FROM FRONT SUPPORT

INSPECTION OF FRONT SUPPORT

INSPECT FRONT SUPPORT BUSHING

Using a dial indicator, measure the inside diameter of

the front support bushing.

Maximum inside diameter: 31.40 mm (1.2362 in.)

If the inside diameter is greater than the maximum, re-

place the front support.

ASSEMBLY OF TRANSFER CASE AND FRONT

SUPPORT

INSTALL OIL SEAL RINGS TO FRONT SUPPORT
Coat the two oil seal rings with ATF and install them onto

the front support.

NOTICE: Do not spread the ring ends more than neces-

sary.

HINT: After installing the oil seal rings, check that they

rotate smoothly.

INSTALL PARKING LOCK PAWL, SHAFT AND SPRING

IN CASE
(a)

Install the E−ring to the shaft.

(b)

Install the parking lock pawl, shaft and spring.

INSTALL MANUAL VALVE LEVER AND SHAFT
(a)

Using SST and a hammer, drive in a new oil seal

to the case.

SST

09350−30020 (09350−07110)

(b)

Coat the oil seal lip with MP grease.

AT−222

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AUTOMATIC TRANSMISSION (A340H)

Component Parts (Transfer Case and Front Support)

AT7977

AT7976

AT1466

AT4926

(c)

Assemble a new spacer to the manual valve lever.

(d)

Install the manual valve lever shaft to the transfer

case through the manual valve lever.

(e)

Drive in the roll pin to the shaft.

(f)

Match the spacer hole to the lever calking hollow

and calk the spacer to the lever.

(g)

Make sure the manual valve lever shaft turns

smoothly.

INSTALL APPLY GASKETS
(a)

Install a new apply gasket to the transfer case inner

side.

(b)

Install new two apply gaskets to the transfer case

front side.

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AUTOMATIC TRANSMISSION (A340H)

Component Parts (Transfer Case and Front Support)

AT−223

AT4927

AT4288

AT3297

♦ Non−reusable part

♦ Front Drive Shaft Oil Seal

Front Drive Shaft Bearing

Transfer Chain Front Case

Snap Ring

♦ O−Ring

Accumulator

Piston

Snap Ring

Front Output

Shaft Bearing

Accumulator Piston Cover

♦ Apply Gasket

♦ Front Output Shaft Oil Seal

Spring

Transfer Chain Front Case

COMPONENTS

DISASSEMBLY OF TRANSFER CHAIN FRONT

CASE

REMOVE APPLY GASKETS

REMOVE B

ACCUMULATOR PISTON

(a)

Remove the three bolts and accumulator piston

cover.

AT−224

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AUTOMATIC TRANSMISSION (A340H)

Component Parts (Transfer Chain Front Case)

AT4287

AT4289

AT3298

AT4928

AT1464

(b)

Remove the O−ring from the accumulator piston

cover.

(c)

Position a rag to catch piston. Using low−pressure

compressed air (1 kg /cm

, 14 psi or 98 kPa max.),

pop the piston into the rag. Force air holes shown,

and remove the piston and spring.

(d)

Remove the O−rings from the accumulator piston.

REMOVE FRONT OUTPUT SHAFT BEARING
(a)

Using snap ring pliers, remove the snap ring.

(b)

Remove the bearing.

REMOVE FRONT OUTPUT SHAFT OIL SEALS
Using a screwdriver and hammer, drive out the two oil

seals from the transfer chain front case.

REMOVE TRANSFER FRONT DRIVE SHAFT BEARING
(a)

Using snap ring pliers, remove the snap ring.

(b)

Remove the bearing.

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AUTOMATIC TRANSMISSION (A340H)

Component Parts (Transfer Chain Front Case)

AT−225

AT4364

SST

2.7 − 3.3 mm

SST

AT4928

AT4289

AT3299

11.0 − 11.3 mm

SST

0−+0.3 mm

AT4929

REMOVE TRANSFER FRONT DRIVE SHAFT OIL SEAL
Using a screwdriver and hammer, drive out the oil seal

from the transfer chain front case.

ASSEMBLY OF TRANSFER CHAIN FRONT CASE

INSTALL TRANSFER FRONT DRIVE SHAFT OIL SEAL
(a)

Using SST and a hammer, drive in a new oil seal.

SST

09608−35014 (09608−06020, 09608−06100)

Oil seal depth: 2.7 − 3.3 mm (0.106 − 0.130 in.)
(b)

Coat the oil seal lip with MP grease.

INSTALL TRANSFER FRONT DRIVE SHAFT BEARING
(a)

Install the bearing to the transfer chain front case.

(b)

Using snap ring pliers, install the snap ring.

INSTALL FRONT OUTPUT SHAFT BEARING
(a)

Install the bearing.

(b)

Using snap ring pliers, install the snap ring.

INSTALL FRONT OUTPUT SHAFT OIL SEALS
(a)

Using SST and a hammer, drive in a new front oil

seal.

SST

09608−32010 and 09608−35014 (09608−06020)

Oil seal depth: 11.0 − 11.3 mm (0.433 − 0.445 in.)
(b)

Using SST and a hammer, drive in a new rear oil

seal.

SST

09608−32010 and 09608−35014 (09608−06020)

Oil seal depth: 0 − +0.3 mm (0 − +0.012 in.)
(c)

Coat the oil seal lips with MP grease.

AT−226

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AUTOMATIC TRANSMISSION (A340H)

Component Parts (Transfer Chain Front Case)

AT4288

AT4930

INSTALL B

ACCUMULATOR PISTON

(a)

Coat new O−rings with ATF and install them to the

piston.

(b)

Install a new O−ring to the accumulator piston

cover.

(c)

Install the spring and accumulator piston.

(d)

Install the accumulator piston cover and torque the

three bolts.

INSTALL NEW APPLY GASKETS

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AUTOMATIC TRANSMISSION (A340H)

Component Parts (Transfer Chain Front Case)

AT−227

♦ Non−reusable part

L Precoated part

AT3300

kg−cm (ft−lb, N−m)

: Specified torque

70 (61 in.−lb, 6.9)

Oil Strainer

Transfer Chain Rear Case

Front Drive Shaft

Bearing

Snap Ring

♦ Front Output Shaft

Oil Seal

Front Output

Shaft gearing

AT1449

AT3301

Transfer Chain Rear Case

COMPONENTS

DISASSEMBLY OF TRANSFER CHAIN REAR

CASE

REMOVE FRONT OUTPUT SHAFT OIL SEALS
Using a screwdriver and hammer, drive out the two oil

seals.

REMOVE FRONT OUTPUT SHAFT BEARING
(a)

Using snap ring pliers, remove the snap ring.

(b)

Remove the bearing.

AT−228

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AUTOMATIC TRANSMISSION (A340H)

Component Parts (Transfer Chain Rear Case)

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