Toyota Automatic Transmission A340 Series. Repair Manual — part 29
AT1473
AT1469
AT1472
AT7977
AT4852
2.
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.
3.
REMOVE SPRING, SHAFT AND PARKING LOCK
PAWL
(a)
Remove the spring, shaft and parking lock pawl.
(b)
Remove the E−ring from the shaft.
−
AUTOMATIC TRANSMISSION (A340H)
Component Parts (Transfer Case and Front Support)
AT−221
AT1627
AT1507
AT1472
AT1474
SST
AT1507
4.
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
1.
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.
2.
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.
3.
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
−
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.
4.
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.
−
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
1.
REMOVE APPLY GASKETS
2.
REMOVE B
4
ACCUMULATOR PISTON
(a)
Remove the three bolts and accumulator piston
cover.
AT−224
−
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
2
, 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.
3.
REMOVE FRONT OUTPUT SHAFT BEARING
(a)
Using snap ring pliers, remove the snap ring.
(b)
Remove the bearing.
4.
REMOVE FRONT OUTPUT SHAFT OIL SEALS
Using a screwdriver and hammer, drive out the two oil
seals from the transfer chain front case.
5.
REMOVE TRANSFER FRONT DRIVE SHAFT BEARING
(a)
Using snap ring pliers, remove the snap ring.
(b)
Remove the bearing.
−
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
6.
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
1.
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.
2.
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.
3.
INSTALL FRONT OUTPUT SHAFT BEARING
(a)
Install the bearing.
(b)
Using snap ring pliers, install the snap ring.
4.
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
−
AUTOMATIC TRANSMISSION (A340H)
Component Parts (Transfer Chain Front Case)
AT4288
AT4930
5.
INSTALL B
4
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.
6.
INSTALL NEW APPLY GASKETS
−
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
L
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
1.
REMOVE FRONT OUTPUT SHAFT OIL SEALS
Using a screwdriver and hammer, drive out the two oil
seals.
2.
REMOVE FRONT OUTPUT SHAFT BEARING
(a)
Using snap ring pliers, remove the snap ring.
(b)
Remove the bearing.
AT−228
−
AUTOMATIC TRANSMISSION (A340H)
Component Parts (Transfer Chain Rear Case)
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