Isuzu KB P190. Service manual — part 1039
UNIT REPAIR (AW30–40LE)
7A4–21
18. Remove the second coast brake band from the
transmission case.
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19. Remove the front planetary ring gear from the
transmission case.
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20. Remove the bearing and race.
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21. Remove the race.
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22. Using snap ring pliers, remove the snap ring.
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7A4–22
UNIT REPAIR (AW30–40LE)
NOTE: Hold the output shaft to prevent it from falling.
The output shaft falls when the snap ring is removed.
23. Remove the front planetary gear from the
transmission case.
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24. Remove sun gear input drum and one-way clutch.
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25. Using two screwdrivers, remove the snap ring.
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26. Remove, five discs and six plates (B–2).
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UNIT REPAIR (AW30–40LE)
7A4–23
27. 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: 0.70 – 1.22mm (0.0276 – 0.0480)
If the values are nonstandard, replace the discs.
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28. Using snap ring pliers, remove the snap ring.
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29. Remove the rear planetary gear, second brake drum
and output shaft as an assembly.
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30. Remove the assembled thrust bearing and race
from the transmission case.
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7A4–24
UNIT REPAIR (AW30–40LE)
Reassembly
1. Coat the assembled bearing and race with
petroleum jelly and install it onto the transmission
case.
Assembled bearing and race (Reference)
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2. Install the rear planetary gear, second brake drum
and output shaft.
• Align the teeth of the second brake drum,
flanges, discs and plates as shown in the figure.
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• Align the splines of the transmission case and the
assembled rear planetary gear, second brake
drum and output shaft, indicated by A in the
figure.
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3. Using snap ring pliers, install the snap ring.
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Bearing and race
Diameter
Inside
39.38 mm (1.550 in)
Outside
58.15 mm (2.289 in)
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