Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 335

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

OD PLANETARY GEAR AND OD

DIRECT CLUTCH ASSEMBLY (C-0)

DISASSEMBLY

252R200007

Disassembly steps

1. OD direct clutch assembly
2. OD planetary gear assembly
3. Thrust

bearing

4. Snap

ring

5. Flange, disk and plate
6. Snap

ring

7. Piston

return

spring

8. OD direct clutch piston with O-ring
9. O-ring

10. Thrust bearing
11. Snap ring
12. Ring gear flange
13. OD planetary ring gear
14. Race
15. Snap ring
16. Retaining plate
17. OD one-way clutch
18. Thrust washer

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

252L100003

Disassembly steps

Check operation of one-way clutch

Hold the OD direct clutch drum and turn the input shaft.
The input shaft should turn freely clockwise and should
lock counterclockwise.

○

1

: Free

○

2

: Lock

252L100004

1. OD direct clutch assembly
2. OD planetary gear assembly

Remove OD direct clutch assembly from OD planetary
gear assembly.

3. Thrust bearing

Then remove thrust bearing with the race from OD
direct clutch drum.

252L100005

Check piston stroke of OD direct clutch (C-0)

Place the oil pump onto the torque converter, and then
place the OD direct clutch assembly onto the oil pump.

252L100016

Use a dial indicator, measure the OD direct clutch
piston stroke applying and releasing the compressed air
(390 – 780 kPa, 4 – 8 kg/cm

2

or 57 – 114 psi) as

shown.
Piston stroke: 1.85 – 2.15 mm (0.0728 – 0.0846 in)

252L100006

4. Snap ring

Remove snap ring from clutch drum.

5. Flange, disc and plate

Remove flange, two discs and two plates.

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

252L100007

6. Snap ring

Place special tool on the spring retainer and compress
the return spring.
Using snap ring pliers, remove the snap ring.
Spring compressor : 5-8840-0195-0 (J-23327-1)

7. Piston return spring

Remove piston return spring

252L100008

8. OD direct clutch piston with O-ring.

Place the oil pump onto the torque converter and then
place the OD direct clutch onto the oil pump.
Holding the OD direct clutch piston by hand, apply
compressed air to the oil pump to remove the OD direct
clutch piston.
Remove the OD direct clutch piston.

9. O-ring

Remove two O-rings from piston.

252RY00021

10. Thrust bearing

Remove bearing and race from OD planetary ring gear.

252RY00022

11. Snap ring

Remove snap ring.

252RY00023

12. Ring gear flange
13. OD planetary ring gear

Remove ring gear flange from OD planetary ring gear.

7A-192 AUTOMATIC TRANSMISSION (AW30-40LE)

252RY00024

14. Race
15. Snap ring

Remove snap ring, using screwdriver.

252RY00025

16. Retaining plate

Remove retaining plate from OD planetary gear.

252RY00026

17. OD one-way clutch

Remove OD one-way clutch with outer race.

18. Thrust washer

252RY00027

INSPECTION AND REPAIR

Check discs

Using a micrometer, measure the thickness of the
discs.
Minimum thickness: 2.04 mm (0.0803 in)
If the thickness is less than the minimum, replace the
disc.

252RY00028

Check piston return spring

Using calipers, measure the free length of the return
spring.
Standard length: 15.8 mm (0.622 in)