Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 408

7A-180 AUTOMATIC TRANSMISSION (AW30-40LE)

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7. Snap ring

Remove the snap ring with a screwdriver.

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8. One-way clutch

Remove the one-way clutch with retainers from the
planetary gear.

9. Thrust washer (Plastic)
10. Thrust washer (Plastic)
11. Rear planetary gear
12. Thrust bearing and race
13. Snap ring
14. Ring gear flange
15. Rear planetary ring gear

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Check disc, plate and flange

Check to see if the sliding surface of the disc, plate and
flange are worn or burnt. If necessary, replace them.

・ If the lining of the disc is peeling off or discolored, or

even if parts of the printed numbers are defaced,
replace all discs.

・ Before assembling new discs, soak them in ATF for

at least fifteen minutes.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-181

REASSEMBLY

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Reassembly steps

1. Rear planetary ring gear
2. Ring gear flange
3. Snap

ring

4. Thrust bearing and race
5. Rear

planetary

gear

6. Thrust washer (Plastic)
7. Thrust washer (Plastic)
8. One-way

clutch

9. Snap

ring

10. One-way clutch inner race
11. Rear planetary gear assembly
12. Disc, plate, flange and cushion plate
13. Oil seal ring
14. Output shaft
15. Second brake assembly

7A-182 AUTOMATIC TRANSMISSION (AW30-40LE)

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Reassembly steps

1. Rear planetary ring gear
2. Ring gear flange

Install ring gear flange to the rear planetary ring gear.

3. Snap ring

Install snap ring to the rear planetary ring gear.

4. Thrust bearing and race

Coat the races and bearing with petroleum jelly, and
install them onto the rear planetary ring gear.

Races and bearing diameter (Reference)

Inside

Outside

Race (A)

28.8 mm (1.134 in) 44.8 mm (1.764 in)

Bearing

30.1 mm (1.185 in) 44.7 mm (1.760 in)

Race (B)

27.8 mm (1.094 in) 44.8 mm (1.764 in)

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5. Rear planetary gear
6. Thrust washer (Plastic)
7. Thrust washer (Plastic)

Coat the thrust washers with petroleum jelly.
Install the thrust washers onto both sides of the rear
planetary gear, facing the grooved side upward.
NOTE:
Make sure that the lugs fit into the cutout portions
on the rear planetary gear.

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8. One-way clutch

Install the one-way clutch with the flanged side facing
upward onto the rear planetary gear.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-183

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9. Snap ring

Install snap ring.

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10. One-way clutch inner race

While turning counterclockwise, install one-way clutch
inner race to rear planetary gear.

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Check operation of one-way clutch

Hold the planetary gear and turn the one-way clutch
inner race.
The one-way clutch inner race should turn freely
counterclockwise and should lock clockwise.

①: Lock

②: Free

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11. Rear planetary gear assembly

Install rear planetary gear onto rear planetary ring gear.

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12. Disc, plate, flange and cushion plate

Install a clutch plate onto the rear planetary gear
assembly.
NOTE:
The claw interval of the plate should be as shown in
the figure when viewing the clutch plate from the
arrow direction.