Isuzu Trooper (1998-2002 year). Manual — part 749
AUTOMATIC TRANSMISSION (AW30-40LE)
7A–193
248RY00005
248RY00004
252RY00007
252RY00005
Check piston stroke of second coast brake
Place a mark on the second coast brake piston rod as
shown in the figure.
Using wire gage, measure the stroke by applying the
compressed air (4–8kg/cm
2
, 57–114 psi or 392–785kPa)
as shown in the figure.
If the values are nonstandard, check for an improper
installation.
21. Race
Coat the race with petroleum jelly and install it onto the
overdrive support assembly.
22. OD support
Aim the bolt and oil holes of the overdrive support toward
the valve hole side, and align them with the bolt hole of the
transmission case and insert.
mm (in.)
Piston stroke
1.5–3.0
(0.059–0.118)
Race diameter (Reference)
mm (in.)
Inside
Outside
Race
36.8 (1.450)
50.9 (2.004)
7A–194
AUTOMATIC TRANSMISSION (AW30-40LE)
252RY00008
252RY00004
247RY00020
252RY00009
23. Snap ring
Using snap ring pliers, install the snap ring as shown in the
figure.
Install and tighten the two bolts.
Check end of output shaft
Using a dial indicator, measure the end play of the output
shaft by hand.
24. Flange, plate and disc
Install the (flat ring) 4.0 mm (0.157 in.) thick flange with the
rounded edge side of the flange facing the disc.
Alternately install four discs and three plates. (Disc first)
N·m(kg·m / lb·ft)
Torque
25 (2.6/19)
mm (in.)
End play
0.27–0.86
(0.0106–0.0339)
AUTOMATIC TRANSMISSION (AW30-40LE)
7A–195
246RY00001
252RY00003
244RY00001
246RY00001
25. Snap ring
Install the (stepped ring) flange with the flat side of the
flange facing the disc.
Install the snap ring.
Check piston stroke of overdrive brake
Place a dial indicator onto the overdrive brake piston as
shown in the figure.
Measure the stroke by applying and releasing the
compressed air (4–8kg/cm
2
, 57–114–psi or 392–785 kPa)
as shown in the figure.
If the values are nonstandard, select another flange.
Remove the snap ring.
Snap ring (Reference)
mm (in.)
Inside diameter
167.9 (6.61)
mm (in.)
Piston stroke
1.40–1.70
(0.0551–0.0670)
Available Flange size
mm(in.)
3.3 (0.130)
3.8 (0.150)
3.5 (0.138)
3.9 (0.154)
3.6 (0.142)
4.0 (0.158)
3.7 (0.146)
7A–196
AUTOMATIC TRANSMISSION (AW30-40LE)
246RY00026
252RY00010
252RY00002
252RY00011
Remove two flanges, three plates and four discs.
26. Bearing and race
Coat the bearing and races with petroleum jelly and install
them onto the overdrive support.
27. OD planetary ring gear
Install the overdrive planetary ring gear.
28. Bearing and race
Coat the bearing and race with petroleum jelly and install
them onto the planetary ring gear.
Bearing and races diameter (Reference)
mm (in.)
Inside
Outside
Bearing
36.5 (1.437)
48.5 (1.910)
Race (Front)
37.2 (1.465)
58.8 (2.315)
Race (Rear)
33.7 (1.327)
50.1 (1.973)
Bearing and race diameter (Reference)
mm (in.)
Inside
Outside
Bearing
26.0 (1.024)
46.8 (1.843)
Race
24.2 (0.953)
47.8 (1.882)
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