Isuzu Trooper (1998-2002 year). Manual - part 743

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–169

246RY00013

247RY00047

247RY00028

247RY00042

10. Disc, plate, and flange

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.

Install a brake flange onto the rear planetary gear
assembly.
Install seven clutch discs and seven brake plates
alternately, starting with clutch disc, onto the rear planetary
gear assembly.

11. Oil seal ring

Coat the oil seal ring with ATF and install it to the output
shaft.

NOTE:  
Do not spread the ring ends too much.

12. Output shaft

Install output shaft into rear planetary assembly.

7A–170

AUTOMATIC TRANSMISSION (AW30-40LE)

246RY00014

13. Second brake assembly

Install second brake assembly to output shaft.

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–171

FIRST AND REVERSE BRAKE (B–3)

DISASSEMBLY

246RY00024

Disassembly steps

▲

 1. Thrust bearing and race

▲

 2. Snap ring

3. Piston return spring

▲

 4. 1st and reverse brake piston No.2

5. O–ring

▲

 6. Reaction sleeve

7. O–ring

▲

 8. 1st and reverse brake piston No.1

9. O–ring

7A–172

AUTOMATIC TRANSMISSION (AW30-40LE)

247RY00043

246RY00016

247RY00002

246RY00016

Important operations

1. Thrust bearing and race

Remove assembled bearing and race from transmission
case.

Check first and reverse brake piston movement

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

2. Snap ring

Set special tool on the spring retainer, and compress the
return spring.
Spring compressor:5–8840–0254–0 (J–25048)
Remove the snap ring with snap ring pliers.

4. 1st and reverse brake piston No.2

Holding the No.2 first and reverse brake piston by hand,
apply compressed air to the transmission case to remove
the No.2 first and reverse brake piston.
Remove the No.2 first and reverse brake piston.
If the piston does not pop out with compressed air, lift the
piston out with needle–nose pliers.