Mitsubishi 380. Manual — part 472

REVERSE AND OVERDRIVE CLUTCH

AUTOMATIC TRANSMISSION OVERHAUL

23B-48

REVERSE AND OVERDRIVE CLUTCH

DISASSEMBLY AND REASSEMBLY

M1233021200256

Number of clutch discs and plates

Pressure plate

Clutch disc

Clutch plate

Clutch reaction
plate

Over drive clutch

1

4

3

1

Reverse clutch

−

2

2

1

AKX01127AE

Apply automatic

transmission fluid

to all moving parts

before installation.

13

10

15

11

12

14

6

8

3

2

2

1

9

5

4

7

19

18

20

16

9

8

6

1

17

3

7

18

10

11

19

13

20

16

17

15

14

12

5

Disassembly steps

>>

G

<<

1.

Snap ring

>>

F

<<

2.

Clutch reaction plate

>>

F

<<

3.

Clutch disc

>>

F

<<

4.

Clutch plate

>>

E

<<

5.

Snap ring

>>

D

<<

6.

Clutch reaction plate

>>

D

<<

7.

Clutch disc

>>

D

<<

8.

Clutch plate

>>

D

<<

9.

Pressure plate

<<

A

>>

>>

C

<<

10. Snap ring

11. Spring retainer

>>

A

<<

12. D-ring
13. Return spring
14. Overdrive clutch piston

>>

A

<<

15. D-ring

>>

B

<<

16. Reverse clutch piston

>>

A

<<

17. D-ring

>>

A

<<

18. D-ring

>>

A

<<

19. D-ring
20. Reverse clutch retainer

Disassembly steps ( つづき )

REVERSE AND OVERDRIVE CLUTCH

AUTOMATIC TRANSMISSION OVERHAUL

23B-49

DISASSEMBLY SERVICE POINT

<<A>> SNAP RING REMOVAL

AK300525AD

MD999590

MD998924

1. Set special tools as shown in the illustration.

• Spring compressor (MD999590)

• Spring compressor retainer (MD998924)

2. Compress the return spring and remove the snap

ring.

REASSEMBLY SERVICE POINTS

>>A<< D-RING INSTALLATION

AK301765

D-ring

Reverse clutch retainer

Reverse clutch piston

Overdrive clutch piston

Spring retainer

AC

1. Install D-rings in the grooves on the reverse clutch

retainer, piston, overdrive clutch piston and spring
retainer. Be careful not to twist or damage the D-
rings.

2. Apply ATF or petroleum jelly (Vaseline) to D-rings.

>>B<< REVERSE CLUTCH PISTON
INSTALLATION

AK301276AB

A

B

Align the outer circumference holes ("A" and "B") of
the reverse clutch piston and the reverse clutch
retainer to assemble them.

>>C<< SNAP RING INSTALLATION

AK300525AD

MD999590

MD998924

1. Set special tools as shown in the illustration.

• Spring compressor (MD999590)

• Spring compressor retainer (MD998924)

2. Tighten the nut on the special tool to press down

on the spring retainer and reverse clutch retainer,
and then install the snap ring.

AK300526

3. Check that the clearance between the snap ring

and the return spring retainer is within the
standard value. If not within the standard value,
select a snap ring to achieve the standard value
clearance.

Standard value: 0

− 0.09 mm

REVERSE AND OVERDRIVE CLUTCH

AUTOMATIC TRANSMISSION OVERHAUL

23B-50

>>D<< PRESSURE PLATE/CLUTCH PLATE/
CLUTCH DISC/CLUTCH REACTION PLATE
INSTALLATION

AK303676AD

Shear droop

Clutch

plates

Pressure

plate

Clutch discs

Clutch

reaction

plate

AK301272AB

A

B

1. Install the pressure plate in the direction shown

CAUTION

Immerse the clutch disc in ATF before assem-
bling it. If the clutch disc is new, soak it in ATF for
more than two hours.
2. Assemble the clutch discs and clutch plates, one

on top of the other, inside the reverse clutch
piston. Assemble both clutch plates so that the
places with no teeth (marked "A") are aligned with
the holes in the retainer (marked "B").

3. Install the clutch reaction plate in the direction

shown.

>>E<< SNAP RING INSTALLATION

AK202313

MD998924

MB991629

AB

1. Install the snap ring into the groove in the reverse

clutch piston.

2. Set special tools as shown in the illustration, and

compress the clutch element.

• Spring compressor (MB991629)

• Spring compressor retainer (MD998924)

3. Check that the clearance between the snap ring

and the clutch reaction plate is within the standard
value. If not within the standard value, select a
snap ring to achieve the standard value
clearance.

Standard value: 1.6

− 1.8 mm

>>F<< CLUTCH PLATE/CLUTCH DISC/CLUTCH
REACTION PLATE INSTALLATION

AK301272AB

A

B

CAUTION

Immerse the clutch disc in ATF before assem-
bling it. If the clutch disc is new, soak it in ATF for
at least two hours.
1. Assemble two clutch discs and two clutch plates,

one on top of the other, inside the reverse clutch
retainer. Assemble both clutch plates so that the
places with no teeth (marked "A") are aligned with
the holes in the retainer (marked "B").

AK301320 AB

Clutch plates

Shear droop

Clutch reaction plate

Clutch discs

2. Install the clutch reaction plate in the direction

shown. Install it the same as the clutch plate, so
that the places with no teeth (marked "A") are
aligned with the holes in the retainer (marked "B").

DIRECT CLUTCH

AUTOMATIC TRANSMISSION OVERHAUL

23B-51

>>G<< SNAP RING INSTALLATION

AK300528AE

MB991789

MD998924

1. Install the snap ring into the groove of reverse

clutch retainer.

2. Set special tools as shown in the illustration, and

compress the clutch element.

• Spring compressor (MB991789)

• Spring compressor retainer (MD998924)

3. Check that the clearance between the snap ring

and the clutch reaction plate is within the standard
value. If not within the standard value, select a
snap ring to achieve the standard value
clearance.

Standard value: 1.5

− 1.7 mm

DIRECT CLUTCH

DISASSEMBLY AND REASSEMBLY

M1233019400071

AK403291

2

4

1

6

10

11

9

3

7

9

14

1

2

4

11

10

8

7

14

12

13

12

13

3

AC

5

5

6

8

Apply automatic

transmission fluid

to all moving parts

before installation.

Disassembly steps

>>

D

<<

1.

Snap ring

>>

C

<<

2.

Clutch reaction plate

>>

C

<<

3.

Clutch disc

>>

C

<<

4.

Clutch plate

Disassembly steps ( つづき )