Isuzu KB P190. Manual - part 1039

UNIT REPAIR (AW30–40LE)

7A4–21

18. Remove the second coast brake band from the

transmission case.

248RY00010

19. Remove the front planetary ring gear from the

transmission case.

247RY00004

20. Remove the bearing and race.

247RY00005

21. Remove the race.

247RY00006

22. Using snap ring pliers, remove the snap ring.

248RY00011

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.

247RY00007

24. Remove sun gear input drum and one-way clutch.

248RY00012

25. Using two screwdrivers, remove the snap ring.

248RY00014

26. Remove, five discs and six plates (B–2).

248RY00015

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.

248RY00016

28. Using snap ring pliers, remove the snap ring.

248RY00017

29. Remove the rear planetary gear, second brake drum

and output shaft as an assembly.

247R200001

30. Remove the assembled thrust bearing and race

from the transmission case.

248RY00018

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)

247RY00008

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.

247RY00009

• 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.

247RY00010

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

246RY00003

Bearing and race

Diameter

Inside

39.38 mm (1.550 in)

Outside

58.15 mm (2.289 in)