Isuzu Trooper (1998-2002 year). Manual - part 726

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–101

252RY00005

252RY00006

248RY00004

248RY00005

Install two removed bolts to the OD support, and pull out
the OD support assembly.

11. Race

Remove two races from OD support.

Check piston stroke of second coast brake

Place a mark on the second coast brake piston rod as shown in
the figure.
Using feeler gauge, measure the stroke applying the
compressed air (4 – 8kg/cm

2

,

 57 – 114psi or 392 – 785 kPa) as

shown in the figure.

mm (in.)

If the values are nonstandard, replace piston rod and
recheck piston stroke. If piston stroke is nonstandard,
replace brake band.
There are two piston rods.

Piston stroke

1.5–3.0 (0.059-0.118)

Rod length

71.4mm (2.811 in.)

72.9mm (2.870 in.)

7A–102

AUTOMATIC TRANSMISSION (AW30-40LE)

248RY00006

248RY00007

248RY00008

248RY00009

12. Snap ring

Using snap ring pliers, remove the snap ring.

13. Second coast brake piston assembly

Applying compressed air to the oil hole, remove the second
coast brake piston assembly.

14. Direct clutch and forward clutch

Remove the direct clutch and forward clutch from the case.

15. E-ring and pin

Remove the E-ring from the pin.
Remove the pin from the brake band.

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–103

248RY00010

247RY00004

247RY00005

247RY00006

16. Second coast brake band

Remove the second coast brake band from the case.

17. Front planetary ring gear

Remove the front planetary ring gear from the case.

18. Bearing and race

Remove the bearing and race.

19. Race

Remove the race.

7A–104

AUTOMATIC TRANSMISSION (AW30-40LE)

248RY00011

247RY00007

248RY00012

248RY00013

20. Snap ring

Using snap ring pliers, remove the snap ring.

21. Front planetary gear

Remove the front planetary gear from the case.

22. Drum and one-way clutch

Remove sun gear input drum and one-way clutch.

Check pack clearance of second brake

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

If the values are nonstandard, replace the discs.

mm (in.)

Clearance

0.62–1.98

(0.0244–0.0780)