Mitsubishi 380. Manual — part 466
AK300469
TRANSMISSION
AUTOMATIC TRANSMISSION OVERHAUL
23B-24
54.Remove the snap ring.
AK300470
55.Remove the second brake piston and the return
spring.
AK202266
56.Remove the pressure plate, second brake discs
(four pieces) and second brake plates (three
pieces).
AK300472
57.Remove the planetary carrier assembly.
AK300473
58.Remove the snap ring.
AK300474
59.Remove the reaction plate and the brake disc.
AK300475
60.Remove the snap ring.
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61.Remove the brake plates (five pieces), brake
discs (six pieces) and pressure plate.
TRANSMISSION
AUTOMATIC TRANSMISSION OVERHAUL
23B-25
NOTE: *Includes the brake discs removed in step
57.
AK300477
62.Remove the wave spring.
AK202194
MD998924
MD999577
AC
63.Remove the one-way clutch inner race and low-
reverse brake piston as follows:
(1) Using special tools to compress the one-way
clutch inner race.
• Spring compressor (MD999577)
• Spring compressor retainer (MD998924)
(2) Remove the snap ring.
(3) Remove the special tools.
(4) Remove the one-way clutch inner race, O-ring,
spring retainer, return spring and low-reverse
brake piston.
AK300479
AK303642AE
Bolt (Four)
Bolt
(Four)
64.Remove the transfer drive gear bearing mounting
bolts (four pieces).
Then, turn the gear 1/8 turn and remove the
remaining bolts (four pieces).
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65.Remove the transfer drive gear.
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66.Remove the snap ring.
AK202140
TRANSMISSION
AUTOMATIC TRANSMISSION OVERHAUL
23B-26
67.Remove the one-way clutch.
68.Remove the seal rings (two pieces).
69.Remove the needle bearing.
70.Remove the differential bearing outer race from
the transmission case.
REASSEMBLY
CAUTION
• Never reuse any gasket, O-ring, and oil seal.
Always replace them with new ones.
• Never use any product other than blue petro-
latum jelly or white Vaseline to lubricate or
hold parts during assembly.
• Apply ATF to friction elements, rotating parts,
and sliding parts before installation.Soak new
clutch discs or brake discs in ATF for at least
two hours before installing them.
• Never apply sealant or adhesive to gaskets.
• When a bushing requires replacement,
replace the assembly of which the bushing
forms a part.
• Never use any cloth gloves or any rags during
reassembly. Use only nylon cloth or paper
towels if necessary.
•
AK301090AE
MD998412
Change also the ATF in the cooler circuit.
1. Install special tool Guide (MD998412) in the
installation screw hole of the transfer drive gear
bearing located in the transmission case. Using
this as a guide, install the transfer drive gear
bearing and gear in the transmission case.
AK300489
2. Tighten the mounting bolts (eight pieces) of the
transfer drive gear bearing to the specified torque
of 34
± 2 N⋅m.
AK301620AC
Low-reverse brake piston
Return spring
Spring retainer
3. Install the low-reverse brake piston, return spring,
and spring retainer into the transmission case.
AK301748
One-way clutch inner race
O-ring
AC
4. Fit a new O-ring into the groove of one-way clutch
inner race.
AK301091
Transmission case
Identification
notches
AB
A
A
TRANSMISSION
AUTOMATIC TRANSMISSION OVERHAUL
23B-27
5. Check the placement of the identification notches
in the one-way clutch inner race. Install the one-
way clutch inner race to the transfer drive gear
bearing so that the notches fall along the A
− A
line.
AK202194
MD998924
MD999577
AC
6. Put the snap ring on the inner race.
7. Set special tools as shown, and then compress
the one-way clutch inner race and install the snap
ring.
• Spring compressor (MD999577)
•
AK300491
Spring compressor retainer (MD998924)
8. Install the wave spring onto the low-reverse brake
piston.
AK303645
Snap ring
Reaction plate
MB991632
AE
9. Install the brake discs (six pieces), brake plates
(five pieces) and snap ring as shown in the figure.
NOTE: Do not install the pressure plate at this
time.
10.Install special tool Clearance dummy plate
(MB991632) on the brake disc.
11.Install the reaction plate and the used snap ring.
12.Move special tool Clearance dummy plate
(MB991632) to measure the end play of reaction
plate. Then replace the snap ring installed in step
11 to adjust the end play to standard value.
Standard value: 0
− 0.16 mm
AK303646
Second brake piston
MB991632
Snap ring
Return spring
AD
13.Install the brake discs (four pieces) and brake
plates (three pieces) as shown in the figure.
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