Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 1557

7A–68

AUTOMATIC TRANSMISSION (4L30–E)

(HEC)

240R100008

14. Turn transmission to vertical position to drain fluid.

Return back to horizontal position when drained.

D

Install J–23075 servo piston spring compressor
with offset to the rear of case.

D

Compress servo piston assembly.

D

Remove servo piston retaining ring (14).

D

Slowly release servo piston assembly (15).

D

Remove tool.

7A–69

AUTOMATIC TRANSMISSION (4L30–E)

15. Remove servo piston assembly (15), return spring

(16), and servo apply rod (17).

242RS002

16. Rotate transmission to horizontal position, pan side

down.

D

Remove one 10mm screw, and speed sensor (18)
with “O” ring.

17. Remove seven 8mm extension assembly hexagon

socket head screws, extension assembly (19), and
gasket.

18. Remove retaining ring (20). (4

×

4)

NOTE: Use extra long, needle nose pliers.

D

Remove flange nut (20). (4

×

2)

D

Remove flange and O–ring (20). (4

×

2)

19. Remove speed wheel (21).
20. Remove wheel parking lock (with seal ring) (22).

241RW012

21. Rotate transmission to vertical position, converter

housing up.

D

Loosen the converter housing and oil pump
assembly fixing screws, but do not remove, the five
13 mm inner screws unless oil pump disassembly is
required.

D

Remove seven outer screws.

D

Remove converter housing and oil pump assembly
(23).

22. Remove gasket (24).

7A–70

AUTOMATIC TRANSMISSION (4L30–E)

23. Remove selective thrust washer (25).

241RW004

24. Remove fourth clutch retainer (26).
25. Grasp turbine shaft and lift out the overrun clutch

housing assembly (27) and fourth clutch plates (28).

26. Remove thrust bearing assembly (29).
27. Remove overdrive internal gear (30).

28. Remove thrust washer (31).

252RS001

29. Remove adapter case and center support assembly

(with fourth clutch piston) (32).

30. Remove seal ring (33).
31. Remove selective thrust washer (34) and two O-ring

seals (35) from main case.

32. Use J–23327 and J–23327–90 compressor to

compress the fourth clutch spring retainer and
springs (37).

D

Release snap ring (36) from groove.

D

Remove clutch compressor and snap ring (36).

33. Remove retainer and spring assembly (37).
34. Insert two converter housing/main case screws to

hold adapter case while pulling out fourth clutch
piston (38).

D

Remove fourth clutch piston assembly (38) from the
adapter case.

D

Remove converter housing/main case screws.

35. Grasp intermediate shaft, twist and pull out the

second and third clutch drum assemblies with reverse
clutch plates (39) while holding onto output shaft.

36. Separate second (40) and third clutch (41)

assemblies.

37. Remove thrust washer (42).
38. Remove reverse clutch plates (43 and 44) and

reverse clutch pressure plate (45).

39. Remove bearing (46) and washer (47).
40. Remove planetary carrier assembly (48).
41. Remove thrust bearing (49).

7A–71

AUTOMATIC TRANSMISSION (4L30–E)

42. Remove reaction sun gear (50)
43. Remove needle bearing (51).
44. Remove brake drum (52).
45. Remove brake band (53).
46. Remove thrust bearing (54).

242RS003

47. Rotate case to horizontal position, valve body side

facing up.

D

Remove spring pin (55), using cutting pliers, then
remove parking lock and selector lever assembly
(56).

NOTE: Insert wire in the center of the spring pin to
prevent it from collapsing during removal.  Be aware of pin
height.  Protect machined face of main case.

48. Remove parking lock and range selector lever 17 mm

nut (57).

49. Remove parking lock and range selector lever (56),

and actuator assembly.

50. Remove selector shaft (58).

NOTE: Inspect the shaft for burrs before removing to
prevent damaging seal.  If necessary, remove burrs by
lightly sanding with an oilstone.

249RS004

Reassembly

1. Inspect selector shaft seal and replace it if necessary.

NOTE: Use a seal installer when replacing the seal.

D

Install selector shaft.

NOTE: Spring pin groove must be positioned inside the
case.

2. Install spring pin.  Be sure the selector shaft can move

freely.Do not push the pin flush with the case surface.
Leave enough height for removal.

3. Install actuator assembly (1).