Isuzu KB P190. Manual - part 1040

UNIT REPAIR (AW30–40LE)

7A4–25

4. Check pack clearance of first and reverse brake.

Using a thickness gauge, measure the clearance
between the plate and second brake drum as shown
in the figure.

Clearance: 0.70 – 1.22mm (0.0276 – 0.0480in)

If the values are nonstandard, check for an improper
installation.

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5. Install second brake piston sleeve.

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6. Install one-way clutch in the transmission case.

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7. Install discs and plates (B–2).

Instal the 2.5mm (0.098 in) thick plate with the
rounded edge side of the plate facing the disc.
Alternately install five discs and six plates (Disc first)

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7A4–26

UNIT REPAIR (AW30–40LE)

8. Install the snap ring.

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9. While turning the sun gear input drum clockwise,

install it into the one-way clutch

NOTE:  Confirm the thrust washer is installed correctly.

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10. Install the front planetary gear and bearing to the

sun gear.

NOTE:  Confirm the bearing and race is installed
correctly.

Bearing and race diameter (Reference)

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With wooden blocks under the output shaft, stand
the transmission on the output shaft.

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Inside

Outside

Bearing

35.6 mm (1.40 in)

47.7 mm (1.88 in)

Race

33.7 mm (1.33 in)

47.6 mm (1.87 in)

UNIT REPAIR (AW30–40LE)

7A4–27

11. Using snap ring pliers, install the snap ring.

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12. Coat the bearing race with petroleum jelly and install

it onto the front planetary gear.
Bearing race diameter (Reference)

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13. Insert the second coast brake band to the

transmission case.

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14. Install the E-ring and pin.

• Install the pin through the brake band.

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Bearing race

Diameter

Inside

34.3 mm (1.350 in)

Outside

47.8 mm (1.882 in)

7A4–28

UNIT REPAIR (AW30–40LE)

• Install the E-ring to the pin.

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15. Coat the bearing and race with petroleum jelly and

install them onto the forward clutch.
Bearing and race diameter (Reference)

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16. Coat the race with petroleum jelly and install it onto

the front planetary ring gear.
Race diameter (Reference)

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Align the flukes of the discs in the forward clutch.

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Inside

Outside

Bearing

26.0 mm (1.024 in)

46.7 mm (1.839 in)

Race

26.0 mm (1.024 in)

48.9 mm (1.925 in)

Inside

Outside

Race

26.8 mm (1.055 in)

47.0 mm (1.850 in)