Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 674

7A1 – 196 AUTOMATIC TRANSMISSION (4L30-E)

4. Spacer

Install spacer, with the fluted end toward clutch
plates.

3. Retaining Ring

2. Ring gear

1. Retaining Ring

3-4 ACCUMULATOR PISTON

DISASSEMBLY

Disassembly steps

1. Snap ring
2. Cover
3. Spring
4. Piston 

Reassembly steps

To reassemble, follow the disassembly steps in the
reverse order.
★ Repair kit

1. Snap Ring

Install cover compressor on adapter case.
Compress piston cover. Remove snap ring.

Compressor: 5-8840-2277-1 (J-38559-A)

5-8840-2277-1

Adapter case

Piston cover

AUTOMATIC TRANSMISSION (4L30-E)  7A1 – 197

2. Cover

Install cover remover to center hole of cover.
Use slide hammer to remove cover.

Cover remove: 5-8840-2403-0 (J-41096)
Adapter: 5-8840-2266-0 (J-38584)
Slide hammer: 5-8840-0019-0 (J-23907)

3. Spring

4. Piston

INSPECTION AND REPAIR

Visual Check
If any damage, deformation or wear is found in a return
spring, piston or piston cover, replace it.

REASSEMBLY

4. Piston

Place the fitter into adaptor case and push the piston
into position, using suitable diameter tube.

Piston fitter: 5-8840-2264-0 (J-38553)

3. Spring

5-8840-0019-0

5-8840-2266-0

5-8840-2403-0

242LW001

7A1 – 198 AUTOMATIC TRANSMISSION (4L30-E)

Disassembly Steps

1. Retaining ring
2. Spring seat
3. Springs
4. Piston
5. Center support
6. Gasket
7. Transfer plate
8. Gasket
9. Restrictor

10. Retainer plate
11. Plug
12. Spring
13. Overrun lock out valve

Reassembly Steps

To reassemble, follow the disassembly steps
in the reverse order.

REVERSE CLUTCH PISTON AND CENTER SUPPORT

5-8840-2277-1

Adapter case

Piston cover

2. Cover

Install cover, using compressor tool.

Compressor: 5-8840-2277-1 (J-38559-A)

1. Snap ring

Install snap ring in groove.

AUTOMATIC TRANSMISSION (4L30-E)  7A1 – 199

DISASSEMBLY

1. Retaining Ring

1) Install the tool on spring seat.

2) Compress the spring seat.

Compressor: 5-8840-0195-0 (J-23327)

NOTE:

Do not over-stress the springs and seat, as this will
cause damage to the spring seat.

2. Spring Seat

3. Springs

4. Piston

5. Center Support

Remove 8 bolts from center support. Remove center
support from adapter case.

6. Gasket

7. Transfer Plate

8. Gasket

9. Restrictor

10. Retainer Plate

11. Plug

12. Spring

13. Overrun Lock Out Valve

INSPECTION AND REPAIR

Visual check
If any damage, deformation or local wear is found in a
retaining ring, return spring, spring retainer, piston or
center support, replace it.

REASSEMBLY

13. Overrun Lock Out Valve

12. Spring

Install overrun lock out valve and spring.

NOTE:

Ensure correct assembly of valve. The spring should
be located over the long small diameter end.

11. Plug

10. Retainer Plate