Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 410

7A-188 AUTOMATIC TRANSMISSION (AW30-40LE)

REASSEMBLY

246R200004

Reassembly steps

1. O-ring
2. O-ring
3. First and reverse brake piston No.1
4. O-ring
5. Reaction

sleeve

6. First and reverse brake piston No.2
7. Return

spring

8. Snap

ring

9. Thrust bearing and race

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-189

246RY00018

Reassembly steps

1. O-ring

Coat three new O-rings with ATF.
Install the two O-rings on the No.1 piston.

2. O-ring

Install the O-ring on the reaction sleeve.

3. First and reverse brake piston No.1

Install the first and reverse brake piston No.1 to the
reaction sleeve.

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4. O-ring

Coat a new O-ring with ATF and install it on the first and
reverse brake piston No.2.

5. Reaction sleeve

Install the first and reverse brake piston No.1 with
reaction sleeve onto the first and reverse brake piston
No.2.

246RY00020

6. First and reverse brake piston No.2

Align the teeth of the first and reverse brake piston No.2
into the proper grooves.
Being careful not to damage the O-rings, press in the
first and reverse brake piston No.2 with No.1 into the
transmission case.

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7. Return spring

Place piston return spring onto first and reverse brake
piston No.2.

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8. Snap ring

Set special tool as shown, and compress the return
spring with special tool.
Spring compressor: 5-8840-0254-0 (J-25048)
Install the snap ring with snap ring pliers.
Be sure the end gap of the snap ring is not aligned with
the spring retainer claw.

7A-190 AUTOMATIC TRANSMISSION (AW30-40LE)

246RY00022

Check first and reverse brake piston movement

Make sure the first and reverse brake piston moves
smoothly when applying and releasing the compressed
air into the transmission case.

9. Thrust bearing and race

Coat the assembled bearing and race with petroleum
jelly.
Install the assembled bearing and race facing the
bearing side upward.

Bearing and race diameter (Reference)

Inside diameter

39.38 mm (1.5504 in)

Outside diameter

58.1 mm (2.287 in)

247RY00043

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-191

TRANSMISSION VALVE BODY

ASSEMBLY

DISASSEMBLY

240R200019

Disassembly steps

1. Detent spring
2. Manual shift valve
3. Upper valve body

4. No.1 gasket (Upper valve body side)
5. Valve body plate
6. No.2 gasket (Lower valve body side)
7. Lower valve body