Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 344

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-225

1. One-way clutch and second brake hub
2. Thrust washer (plastic)

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3. Oil seal ring (Metal)

Remove two oil seal rings.

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4. Snap ring

Remove the snap ring with snap ring pliers.

5. Sun gear input drum
6. Snap ring
7. Planetary sun gear

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INSPECTION AND REPAIR

Check planetary sun gear bushing

Using a dial indicator, measure the inside diameter of
the planetary sun gear bushing.
Maximum inside diameter: 27.01 mm (1.0634 in)
If the inside diameter is greater than the maximum,
replace the planetary sun gear.

7A-226 AUTOMATIC TRANSMISSION (AW30-40LE)

REASSEMBLY

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Reassembly steps

1. Planetary

sun

gear

2. Snap

ring

3. Sun gear input drum
4. Snap

ring

5. Oil seal ring (Metal)
6. Thrust washer (Plastic)
7. One-way clutch and second brake hub

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-227

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Reassembly steps

1. Planetary sun gear
2. Snap ring

Install snap ring to planetary sun gear.

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3. Sun gear input drum

Place a wooden block, etc. as a work stand and place
the planetary sun gear onto it.
Install the sun gear input drum onto the planetary sun
gear.

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4. Snap ring

Install snap ring with snap ring pliers.

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5. Oil seal ring (Metal)

Coat the two oil seal rings with ATF.
Install the two oil seal rings onto the planetary sun gear.
NOTE:
Do not spread the ring ends too much.

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6. Thrust washer (Plastic)

Install thrust washer.
NOTE:
Make sure that the lugs fit into the holes on the sun
gear input drum.

7A-228 AUTOMATIC TRANSMISSION (AW30-40LE)

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7. One-way clutch and second brake hub

Install assembled No.1 one-way clutch and second
brake hub onto planetary sun gear as shown.

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Check operation of No.1 one-way clutch

Hold the planetary sun gear and turn the second brake
hub.
The second brake hub should turn freely clockwise and
should lock counterclockwise.

①: Free

②: Lock