Isuzu Trooper (1998-2002 year). Service 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)
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