Toyota Automatic Transmission A340 Series. Repair Manual — part 23
AT4844
AT4283
AT4845
AT4282
AT8380
5.
REMOVE TRANSMISSION AND TRANSFER FLUID
TEMPERATURE SENSORS
(a)
Remove the temperature sensors.
(b)
Remove the O−ring from both sensors.
6.
REMOVE TRANSFER OIL COOLER TUBES
(a)
Remove the two bolts.
(b)
Remove the tube clamp and bracket.
(c)
Remove the two oil cooler tubes.
7.
REMOVE TRANSFER SIDE UNIONS
(a)
Remove the two unions.
(b)
Remove the O−ring from both unions.
−
AUTOMATIC TRANSMISSION (A340H)
Removal of Component Parts
AT−173
AT4434
AT7939
AT4230
AT4435
AT4433
8.
REMOVE SPEEDOMETER DRIVEN GEAR
(a)
Remove the bolt and lock plate.
(b)
Pull out the sleeve.
(c)
Remove the clip and pull out the driven gear from
the sleeve.
(d)
Remove the O−ring from the sleeve.
9.
REMOVE SPEED SENSOR
(a)
Disconnect the connector.
(b)
Remove the speed sensor.
(c)
Remove the O−ring from it.
10. REMOVE TRANSFER CONTROL SHAFT LEVER
11. REMOVE TRANSFER POSITION SWITCH
(a)
Unstake the lock washer.
(b)
Remove the nut and bolt, and then remove the
transfer position switch.
(c)
Remove the lock washer and grommet.
12. REMOVE TRANSMISSION HOUSING
(a)
Remove the six bolts.
(b)
Remove the transmission housing.
AT−174
−
AUTOMATIC TRANSMISSION (A340H)
Removal of Component Parts
AT3168
SST
AT5067
AT4906
SST
AT0103
E7058
13. REMOVE TRANSMISSION OIL PAN
NOTICE: Do not turn the transmission over as this will
contaminate the valve body with any foreign matter at
the bottom of the pan.
(a)
Remove the nineteen bolts.
(b)
Install the blade of SST between the transmission
case and oil pan, cut off applied sealer.
SST
09032−00100
NOTICE: Be careful not to damage the oil pan flange.
(c)
Remove pan by lifting the transmission case.
14. REMOVE TRANSFER OIL PAN
(a)
Remove the eleven bolts.
(b)
Install the blade of SST between the transfer case
and oil pan, cut off applied sealer.
SST
09032−00100
NOTICE: Be careful not to damage the oil pan flange.
(c)
Remove the transfer oil pan.
15. EXAMINE PARTICLES IN PANS
Remove the magnets and use them to collect steel par-
ticles.
Carefully look at the foreign matter and particles in the
pans and on the magnets to anticipate the type of wear
you will find in the transmission and transfer:
Steel (magnetic)
bearing, gear and clutch
. . . . . . . .
plate wear
Brass (non−magnetic)
bushing wear
. . .
−
AUTOMATIC TRANSMISSION (A340H)
Removal of Component Parts
AT−175
AT4280
AT4908
AT8028
AT4668
AT4907
w/ A.D.D.
16. REMOVE TRANSFER VALVE BODY AND SOLENOID
WIRING
(a)
Disconnect the connectors from No. 4 solenoid
and transfer pressure switch.
(b)
Remove the six bolts and valve body.
(c)
Remove the solenoid wiring stopper plate.
(d)
Pull out the solenoid wiring from the transfer case.
(e)
Remove the O−ring from the grommet.
17. REMOVE PARKING LOCK PAWL BRACKET
18. REMOVE OIL STRAINER AND GASKETS
(a)
Remove the eleven bolts holding the oil strainer to
the oil strainer case.
(b)
Remove the oil strainer and gasket.
AT−176
−
AUTOMATIC TRANSMISSION (A340H)
Removal of Component Parts
AT4846
AT1354
AT5066
AT7941
AT4909
(c)
Remove the five bolts and oil strainer case.
(d)
Remove the two gaskets from the case.
19. REMOVE OIL TUBES
Pry up both tube ends with a large screwdriver and re-
move the three tubes.
20. REMOVE TRANSMISSION SOLENOID WIRING
(a)
Disconnect the three connectors from No. 1, No. 2
and lock−up solenoids.
(b)
Remove the stopper plate from the case.
(c)
Pull out the solenoid wiring from the transmission
case.
(d)
Remove the O−ring from the grommet.
21. REMOVE TRANSMISSION VALVE BODY
(a)
Remove the sixteen bolts.
−
AUTOMATIC TRANSMISSION (A340H)
Removal of Component Parts
AT−177
AT4847
AT4910
AT4911
AT5062
E7069
(b)
Disconnect the throttle cable from the cam and
remove the valve body.
22. REMOVE CHECK BALL BODY, ACCUMULATOR
SPRINGS, PINS AND PISTONS
(a)
Remove the check ball body and spring.
(b)
Remove the two springs from the C
0
accumulator
piston.
(c)
Applying compressed air to the oil hole, remove
the B
2
and C
2
accumulator pistons and three
springs.
(d)
Applying compressed air to the oil hole, remove
the B
0
accumulator piston and spring.
AT−178
−
AUTOMATIC TRANSMISSION (A340H)
Removal of Component Parts
AT4228
SST
E7079
AT4912
E7077
E7074
(e)
Applying compressed air to the oil hole, remove
the C
0
accumulator piston.
(f)
Remove the O−rings from each piston.
23. REMOVE THROTTLE CABLE
(a)
Remove the retaining bolt and pull out the throttle
cable.
(b)
Remove the O−ring from the cable.
24. REMOVE REAR COMPANION FLANGE
(a)
Using a hammer and chisel, loosen the staked
part of the nut.
(b)
Using SST to hold the flange, remove the nut and
washer.
SST
09330−00021
(c)
Remove the companion flange.
(d)
Remove the O−ring from the companion flange
inner.
25. REMOVE FRONT COMPANION FLANGE
Remove the front companion flange in the same way as
the rear companion flange.
26. REMOVE TRANSFER EXTENSION HOUSING
(a)
Remove the six bolts.
(b)
Separate the extension housing.
−
AUTOMATIC TRANSMISSION (A340H)
Removal of Component Parts
AT−179
AT7942
AT7943
AT4913
AT4914
AT7888
27. REMOVE SPEEDOMETER DRIVE GEAR
28. REMOVE OIL PUMP ASSEMBLY
(a)
Remove the five bolts.
(b)
Separate the oil pump assembly.
29. REMOVE TRANSFER CHAIN REAR CASE
(a)
Remove the eleven bolts.
(b)
Using a plastic hammer, separate the transfer
chain rear case from the transfer chain front case.
30. REMOVE DRIVE CHAIN WITH DRIVE SPROCKET
AND DRIVEN SHAFT
(a)
Remove the snap ring.
AT−180
−
AUTOMATIC TRANSMISSION (A340H)
Removal of Component Parts
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