Isuzu Trooper (1998-2002 year). Manual - part 747

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–185

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 22. OD support 

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 23. Snap ring

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 24. Flange, plate and disc

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 25. Snap ring

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 26. Bearing and race

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 27. OD planetary ring gear

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 28. Bearing and race

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 29. Race

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 30. OD planetary gear and OD direct clutch

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 31. Bearing

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 32. Race

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 33. Oil pump

7A–186

AUTOMATIC TRANSMISSION (AW30-40LE)

247RY00008

247RY00009

247RY00010

246RY00003

Important operations

1. Bearing

Coat the assembled bearing and race with petroleum jelly
and install it onto the case.

2. Rear planetary gear, second brake drum and output

shaft
Align the teeth of the second brake drum, flanges, discs
and plates as shown in the figure.

Align the splines of the transmission case and the
assembled rear planetary gear, second brake drum and
output shaft, indicated by A in the figure at left.

3. Snap ring

Using snap ring pliers, install the snap ring.

Assemble bearing and race (reference) 

mm (in.)

Bearing and race

Diameter

Inside

39.2 (1.543)

Outside

57.7 (2.272)

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–187

248RY00016

246RY00004

247RY00011

246RY00005

Check pack clearance of first and reverse brake

Using a thickness gauge, measure the clearance between
the plate and second brake drum as shown in the figure.

If the values are nonstandard, check for an improper
installation.

4. Second brake piston sleeve

Install second brake piston sleeve.

5. One–way clutch

Install one–way clutch.

6. Flange plate and disc

Install flange, discs and plates.
Install the 2.5mm (0.098in.) thick plate with the rounded
edge side of the plate facing the disc.
Alternately install four discs and three plates (Disc first)
Install the flange with the rounded edge of the flange facing
the disc.

mm (in.)

Clearance 

0.7–1.0

(0.0276–0.0394)

7A–188

AUTOMATIC TRANSMISSION (AW30-40LE)

248RY00014

248RY00019

248RY00020

247RY00012

7. Snap ring

Install the snap ring.

Check pack clearance of second brake

Using a thickness gauge, measure the clearance between
the snap ring and flange as shown in the figure.

If the values are nonstandard, check for an improper
installation.

8. Drum

While turning the sun gear input drum clockwise, install it
into the one-way clutch.

NOTE:  
Confirm the thrust washers are installed correctly.

9. Front planetary gear and bearing

Install the front planetary gear to the sun gear.

NOTE:  
Confirm the bearing and race is installed correctly.

mm (in.)

Clearance

0.62–1.98

(0.0244–0.0780)