Toyota Automatic Transmission A340 Series. Repair Manual - part 18

AT5757

AT5103

AT5120

E7074

AT5756

(c)

Applying compressed air to the oil hole, remove

the B

0

 accumulator piston and spring.

(d)

Applying compressed air to the oil hole, remove

the C

0

 accumulator piston.

(e)

Remove the O−ring from the piston.

21. REMOVE THROTTLE CABLE

(a)

Remove the retaining bolt and pull out the throttle

cable.

(b)

Remove the O−ring from the cable.

22. REMOVE PARKING LOCK ROD AND PAWL

(a)

Remove the parking lock pawl bracket.

(b)

Disconnect the parking lock rod from the manual

valve lever.

−

AUTOMATIC TRANSMISSION (A340F)

Removal of Component Parts

AT−133

AT5104

AT5105

AT5106

AT5758

AT5121

(c)

Remove the E−ring from the shaft.

(d)

Pull the parking lock pawl shaft out from the front

side, then remove the lock pawl and spring.

23. REMOVE TRANSMISSION CONTROL SHAFT

(a)

Using a hammer and screwdriver, cut off the

spacer and remove it from the shaft.

(b)

Using a pin punch, drive out the spring pin.

HINT: Slowly drive out the spring pin so it does not fall

into the transmission case.
(c)

Pull the manual valve lever shaft out through the

case and remove the manual valve lever.

(d)

Using a screwdriver, remove the two oil seals.

24. REMOVE OIL PUMP

(a)

Stand up the transmission.

(b)

Remove the seven bolts holding the oil pump to

the transmission case.

AT−134

−

AUTOMATIC TRANSMISSION (A340F)

Removal of Component Parts

AT5759

AT3148

AT5760

AT7874

SST

D5000

Race

O−Ring

(c)

Using SST, remove the oil pump.

SST

09610−20012

(d)

Remove the race from the oil pump.

(e)

Remove the O−ring from the oil pump.

25. REMOVE OVERDRIVE PLANETARY GEAR UNIT

WITH OVERDRIVE DIRECT CLUTCH AND ONE−WAY

CLUTCH
(a)

Remove the overdrive planetary gear with the

overdrive direct clutch and one−way clutch from

the transmission case.

(b)

Remove the race and assembled bearing and

race.

(c)

Remove the bearing and race.

−

AUTOMATIC TRANSMISSION (A340F)

Removal of Component Parts

AT−135

AT8212

SST

AT5762

AT8427

AT5763

AT5761

(d)

Remove the overdrive planetary ring gear from

the transmission case.

26. CHECK PISTON STROKE OF OVERDRIVE BRAKE

(a)

Place SST and a dial indicator onto the overdrive

brake piston as shown in the figure.

SST

09350−30020 (09350−06120)

(b)

Measure the stroke applying and releasing the

compressed air (4 − 8 kg /cm

2

, 57 − 114 psi or

392 − 785 kPa) as shown in the figure.

Piston stroke: 1.32 − 1.62 mm (0.0520 − 0.0638 in.)

If the values are nonstandard, inspect the discs.

(See page  AT−61)

27. REMOVE FLANGE, PLATES AND DISCS OF OVER-

DRIVE BRAKE
(a)

Remove the snap ring.

(b)

Remove the flanges, plates and discs as a set.

AT−136

−

AUTOMATIC TRANSMISSION (A340F)

Removal of Component Parts

AT5766

SST

AT5767

AT5768

AT5764

Piston Rod

AT5765

SST

28. CHECK PISTON ROD STROKE OF SECOND COAST

BRAKE
(a)

Place a mark on the second coast brake piston

rod as shown in the figure.

(b)

Using SST, measure the stroke applying the com-

pressed air (4 − 8 kg/cm

2

, 57 − 114 psi or 392 −

785 kPa) as shown in the figure.

SST

09350−30020 (09350−00020)

Piston stroke: 1.5 − 3.0 mm (0.059 − 0.118 in.)

If the values are nonstandard, inspect the brake band.

(See page  AT−76)

29. REMOVE SECOND COAST BRAKE COVER, PISTON

ASSEMBLY AND SPRING
(a)

Using SST, remove the snap ring.

SST

09350−30020 (09350−07060)

(b)

Applying compressed air to the oil hole, remove

the second coast brake cover, piston assembly

and spring.

(c)

Remove the two O−rings from the cover.

30. REMOVE OVERDRIVE SUPPORT ASSEMBLY

(a)

Remove the assembled bearing.

−

AUTOMATIC TRANSMISSION (A340F)

Removal of Component Parts

AT−137

AT5770

SST

AT8157

AT5771

AT5769

AT8426

SST

(b)

Remove the two bolts holding the overdrive sup-

port assembly to the case.

(c)

Using SST, remove the snap ring.

SST

09350−30020 (09350−07060)

(d)

Using SST, remove the overdrive support assembly.

SST

09350−30020 (09350−07020)

(e)

Remove the race.

31. REMOVE DIRECT CLUTCH WITH FORWARD CLUTCH

(a)

Remove the direct clutch with the forward clutch

from the case.

AT−138

−

AUTOMATIC TRANSMISSION (A340F)

Removal of Component Parts

AT5772

AT5773

AT5774

AT3149

AT5111

(b)

Remove the two bearings and races.

32. REMOVE SECOND COAST BRAKE BAND

(a)

Remove the E−ring from the pin.

(b)

Remove the pin from the brake band.

(c)

Remove the second coast brake band from the

case.

For the method of inspection, refer to  AT−76.

33. REMOVE FRONT PLANETARY GEAR UNIT

(a)

Remove the race.

(b)

Remove the front planetary ring gear from the

case.

−

AUTOMATIC TRANSMISSION (A340F)

Removal of Component Parts

AT−139

AT5777

SST

AT8175

AT5776

AT5778

AT5775

(c)

Remove the bearing and race.

(d)

Remove the race.

(e)

With wooden blocks or equivalent under the out-

put shaft, stand the transmission on the output

shaft.

(f)

Using SST, remove the snap ring.

SST

09350−30020 (09350−07070)

(g)

Remove the front planetary gear from the case.

AT−140

−

AUTOMATIC TRANSMISSION (A340F)

Removal of Component Parts