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
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