Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 389

7A-104 AUTOMATIC TRANSMISSION (AW30-40LE)

Individual piston operation inspection

Check for the sound of operation while injecting
compressed air into the oil hole indicated in the figure.

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

240RY00014

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.

240RY00027

7. Accumulator piston

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.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-105

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 diameter

B-2

70.5 mm (2.276 in) 19.7 mm (0.776 in)

C-2 (Outer)

68.5 mm (2.697 in) 20.2 mm (0.795 in)

C-2 (Inner)

20.0 mm (0.787 in)

12.06 mm

(0.4748 in)

B-0

62.0 mm (2.441 in) 16.0 mm (0.630 in)

C-0 (Outer)

74.6 mm (2.937 in) 20.9 mm (0.823 in)

C-0 (Inner))

46.0 mm (1.811 in) 14.0 mm (0.551 in)

240RY00029

240RY00010

240RY00016

8. Check valve, spring

Install new check valve and spring.

240RY00017

9. Valve body

Align the groove of the manual valve to the pin of the
lever.

7A-106 AUTOMATIC TRANSMISSION (AW30-40LE)

249R200003

Connect the throttle cable to the cam.
Confirm the springs into the accumulator piston are
installed correctly.

249R200008

Install the seventeen bolts.
NOTE:
Each bolt length (mm) is indicated in the figure.
Torque: 10 N････m (1.0 kg････m/87 Ib････in)

249R200002

10. Solenoid wiring

Coat a new O-ring with ATF, and install it to the
solenoid wiring.
Insert the solenoid wiring to the transmission case and
install the stopper plate.

249R200001

Connect the connectors to the solenoid S1, S2 and S3.

249R200005

11. Oil tube

Using a plastic hammer, install the two tubes into the
positions shown in the figure.
CAUTION:
Be careful not to bend or damage the tubes.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-107

244R200037

12. Oil strainer assembly

Install two new gaskets to the oil strainer.

244R200001

Install the oil strainer with the gaskets to the valve body.
Tighten the four bolts.
Torque: 10 N････m (1.0 kg････m/87 Ib････in)

240RY00019

13. Oil pan

Install two magnets in oil pan.
NOTE:
Make sure that the magnet does not interfere with
the oil tubes.
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.

240RY00020

Install and tighten the nineteen bolts.
Torque: 8 N････m (0.8 kg････m/69 Ib････in)