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)
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