Page 4145 of 6020
7A4–10 UNIT REPAIR (AW30–40LE)
16. Remove the spacer, rotor, key and snap ring (4×2).
Remove the spacer, rotor and key.
Remove the snap ring from the output shaft.
247L100001
Reassembly
1. Install the converter housing.
Torque:
M10 – 34 N ·m (3.5 kgf ·m/25 lb ·ft)
M12 – 57 N ·m (5.8 kgf ·m/42 lb ·ft)
240R200022
2. Install the snap ring, key and rotor (4 ×2).
Install the snap ring to the output shaft.
Install the key and rotor. 3. Install the spacer, ball, speedometer sensor drive
gear and snap ring (4 ×2).
Install the spacer, ball and speedometer sensor
drive gear.
Install the snap ring to the output shaft.
247L100001
4. Install the key, rotor and snap ring (4 ×4).
Install the key and rotor.
Install the snap ring to the output shaft.
247R200002
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ISUZU KB P190 2007
Page 4146 of 6020

UNIT REPAIR (AW30–40LE) 7A4–11
5. Install the second brake drum gasket. Install a new second brake drum gasket to the
transmission case.
240RY00013
6. Individual piston operation inspection. Check for the sound of operation while injecting
compressed air into the oil hole indicated in the
figure.
240RY00014
E ndOFCallout
NOTE: When inspecting the direct clutch, check with
the C –0 accumulator piston hole closed. If there is no
noise, disassemble and check the condition of the parts. 7. Install the accumulator pistons.
Coat the O –ring with ATF and install it to the
piston.
Install the three springs and four accumulator
pistons to the bore as shown in th figure.
240RY00027
mm (in)
Legend (1) OD direct clutch
(2) Direct clutch
(3) Forward clutch
(4) OD brake
(5) Second coast brake
(6) Second brake
(7) First and reverse brake
(A) C –0 Accumulator piston hole
Piston Outer diameter Height
B –2 36.8 mm (1.449 in) 62.5 mm (2.461 in)
C –2 36.8 mm (1.449 in) 56.6 mm (2.228 in)
B –0 31.8 mm (1.252 in) 52.0 mm (2.047 in)
C –0 29.8 mm (1.173 in) 44.0 mm (1.732 in)
Spring Free length Outer diameterColor
B –2 75.8 (2.984) 20.1 (0.791) PURPLE
C –2
(Outer) 64.0 (2.520) 20.3 (0.799) WHITE&
PINK
C –2 (Inner) 42.1 (1.657) 14.7 (0.579) PINK
B –0 62.0 (2.441) 16.0 (0.630) GREEN
C –0
(Outer) 74.6 (2.937) 20.9 (0.823) ORANGE
C –0 (Inner) 46.0 (1.811) 14.0 (0.551) YELLOW
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ISUZU KB P190 2007
Page 4147 of 6020
7A4–12 UNIT REPAIR (AW30–40LE)
240RY00029
240RY00010
8. Install new check valve and spring.
240RY00016
9. Install the valve body. Align the groove of the manual valve to the pin of
the lever.
240RY00017
Install the twenty bolts.
NOTE: Each bolt length (mm) is indicated in the figure. Torque: 10 N ·m (1.0 kgf ·m/87 lb ·in)
244R200078
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ISUZU KB P190 2007
Page 4148 of 6020
UNIT REPAIR (AW30–40LE) 7A4–13
10. Install the solenoid wiring.Coat a new O-ring with ATF, and install it to the
solenoid wiring.
Insert the solenoid wiring to the case and install the
stopper plate.
Connect the connectors to the solenoid S1 (1), S2
(2), lock-up solenoid (3), and pressure control
solenoid (4).
249RY00011
249RY00012
11. Install a new oil strainer assembly with gaskets.
244RY00002
Install the oil strainer with the gaskets to the valve
body. Tighten the four bolts.
Torque: 10 N ·m (1.0 kgf ·m/87 lb ·in)
244RY00003
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ISUZU KB P190 2007
Page 4149 of 6020
7A4–14 UNIT REPAIR (AW30–40LE)
12. Install the oil pan.Install two magnets in oil pan.
Remove any gasket material and be careful not to
drop oil on the contacting surfaces of the
transmission case and oil pan.
Apply liquid gasket (TB1281 or its equivalent) to the
oil pan as shown in the figure.
NOTE: Install the oil pan as soon as the seal gasket is
applied.
240RY00019
Install and tighten the nineteen bolts.
Torque: 7.4 N ·m (0.75 kgf ·m/65 lb ·in)
240RY00020
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ISUZU KB P190 2007
Page 4150 of 6020
UNIT REPAIR (AW30–40LE) 7A4–15
Major Components (3)
Major Components (3) and Associated Parts
RTW77ALF001801
EndOFCallout
Legend(1) Oil pump
(2) Race
(3) OD planetary gear and OD direct clutch
(4) Race
(5) OD planetary ring gear
(6) Snap ring
(7) Flange, plate and disc (B –0)
(8) Bearing and race
(9) Snap ring
(10) OD support
(11) Race
(12) Snap ring
(13) Second coast brake piston assembly
(14) Direct clutch and forward clutch (15) E-ring and pin
(16) Second coast brake band
(17) Front planetary ring gear
(18) Bearing and race
(19) Race
(20) Snap ring
(21) Front planetary gear
(22) Drum and one-way clutch
(23) Snap ring
(24) Flange, plate and disc (B –2)
(25) Snap ring
(26) Rear planetary gear, second brake drum and output shaft
(27) Bearing
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ISUZU KB P190 2007
Page 4151 of 6020
7A4–16 UNIT REPAIR (AW30–40LE)
Disassembly
1. Remove seven bolts fixing the oil pump to thetransmission case.
Remove the oil pump.
241RY00003
2. Remove race from oil pump.
241RY00002
3. Remove the overdrive planetary gear and overdrive direct clutch with thrust needle bearing from the
transmission case.
252L100001
4. Remove the race from OD planetary gear.
252L100017
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ISUZU KB P190 2007
Page 4152 of 6020
UNIT REPAIR (AW30–40LE) 7A4–17
5. Remove the overdrive planetary ring gear from thetransmission case.
252RY00002
6. Check piston stroke of overdrive brakePlace a dial indicator onto the overdrive brake
piston as shown in the figure.
252RY00003Measure the stroke applying and releasing the
compressed air (390 – 780 kPa or 57 – 114 psi) as
shown in the figure.
Piston stroke: 1.75 – 2.05 mm (0.0689 – 0.0807 in)
If the values are nonstandard, select another flange. Available flange sizes
244RY00001
7. Remove the snap ring.
246RY00001
3.3 mm (0.130 in) 3.8 mm (0.150 in)
3.5 mm (0.138 in) 3.9 mm (0.154 in)
3.6 mm (0.142 in) 4.0 mm (0.158 in)
3.7 mm (0.146 in)
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ISUZU KB P190 2007