Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 329

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-165

248RY00004

Check piston stroke of second coast brake (B-1)

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 (390 – 780 kPa, 4 – 8 kg/cm

2

or 57 –

114 psi) as shown in the figure.
Piston stroke: 1.5 – 3.0 mm (0.059 – 0.118 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.

71.4 mm (2.811 in)

Rod length

72.9 mm (2.870 in)

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12. Snap ring

Using snap ring pliers, remove the snap ring.

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13. Second coast brake piston assembly

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

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14. Direct clutch and forward clutch

Remove the direct clutch and forward clutch from the
transmission case.

7A-166 AUTOMATIC TRANSMISSION (AW30-40LE)

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15. E-ring and pin

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

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16. Second coast brake band

Remove the second coast brake band from the
transmission case.

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17. Front planetary ring gear

Remove the front planetary ring gear from the
transmission case.

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18. Bearing and race

Remove the bearing and race.

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19. Race

Remove the race.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-167

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20. Snap ring

Using snap ring pliers, remove the snap ring.
NOTE:
Hold the output shaft to prevent it from falling.
The output shaft falls when the snap ring is
removed.

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21. Front planetary gear

Remove the front planetary gear from the transmission
case.

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22. Drum and one-way clutch

Remove sun gear input drum and one-way clutch.

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23. Snap ring

Using two screwdrivers, remove the snap ring.

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24. Flange, plate and disc (B-2)

Remove the flange, five discs and five plates.

7A-168 AUTOMATIC TRANSMISSION (AW30-40LE)

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Check pack clearance of first and reverse brake (B-3)

Using a feeler gauge, measure the clearance between
the plate and second brake drum as shown in the
figure.
Clearance: 0.7 – 1.22 mm (0.0276 – 0.0480 in) (UBS)

: 0.6 – 1.12 mm (0.0236 – 0.0441 in)

(TFR/S)

If the values are nonstandard, replace the discs.

Available flange sizes

4.0 mm (0.158 in)

4.8 mm (0.189 in)

4.2 mm (0.165 in)

5.0 mm (0.197 in)

4.4 mm (0.173 in)

5.2 mm (0.205 in)

4.6 mm (0.181 in)

5.4 mm (0.213 in)

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25. Snap ring

Using snap ring pliers, remove the snap ring.

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26. Rear planetary gear, second brake drum and output

shaft

Remove the rear planetary gear, second brake drum
and output shaft as an assembly.

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27. Bearing

Remove the assembled thrust bearing and race from
the transmission case.