INFINITI QX56 2006 Factory Service Manual

AT-266
DISASSEMBLY
Revision: November 20092006 QX56
9. Remove bearing race from oil pump assembly.
10. Remove needle bearing from front sun gear assembly.
11. Remove front sun gear assembly from front carrier assembly.
NOTE:
Remove front sun gear assembly by rotating left/right.
12. Remove seal rings from input clutch assembly.
13. Remove front carrier assembly, input clutch assembly and rear internal gear as a unit.
CAUTION:
Be careful to remove it with needle bearing.
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DISASSEMBLYAT-267
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14. Loosen lock nut and remove band servo anchor end pin from
transmission case.
15. Remove brake band from transmission case.

To prevent brake linings from cracking or peeling, do not
stretch the flexible band unnecessarily. When removing
the brake band, always secure it with a clip as shown.
Leave the clip in position after removing the brake band.

Check brake band facing for damage, cracks, wear or
burns.
16. Remove mid carrier assembly and rear carrier assembly as a unit.
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AT-268
DISASSEMBLY
Revision: November 20092006 QX56
17. Remove mid carrier assembly from rear carrier assembly.
18. Remove needle bearing (front side) from mid carrier assembly.
19. Remove needle bearing (rear side) from mid carrier assembly.
20. Remove bearing race from rear carrier assembly.
21. Remove needle bearing from rear carrier assembly.
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DISASSEMBLYAT-269
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22. Remove mid sun gear assembly, rear sun gear assembly and
high and low reverse clutch hub as a unit.
CAUTION:
Be careful to remove them with bearing races and needle
bearing.
23. Remove high and low reverse clutch assembly from direct clutch assembly.
CAUTION:
Make sure that needle bearing is installed to the high and
low reverse clutch assembly edge surface.
24. Remove direct clutch assembly from reverse brake.
25. Remove needle bearing from drum support edge surface.
26. Remove snap ring from A/T assembly harness connector.
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AT-270
DISASSEMBLY
Revision: November 20092006 QX56
27. Push A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
28. Remove oil pan and oil pan gasket. Refer to AT- 2 2 8 , "
Removal" .
29. Disconnect A/T fluid temperature sensor 2 connector. CAUTION:
Be careful not to damage connector.
30. Straighten terminal clip to free terminal cord assembly and A/T fluid temperature sensor 2 harness.
31. Disconnect revolution sensor connector. CAUTION:
Be careful not to damage connector.
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DISASSEMBLYAT-271
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Revision: November 2009 2006 QX56
32. Straighten terminal clips to free revolution sensor harness.
33. Remove bolts A, B and C from control valve with TCM.
34. Remove control valve with TCM from transmission case.
CAUTION:
When removing, be careful with transmission assembly ter-
minal connector and the manual valve notch and manual
plate height. Remove it vertically.
35. Remove A/T fluid temperature sensor 2 with bracket from con- trol valve with TCM.
36. Remove bracket from A/T fluid temperature sensor 2.
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Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
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AT-272
DISASSEMBLY
Revision: November 20092006 QX56
37. Remove O-ring from A/T assembly harness connector.
38. Disconnect TCM connectors.
CAUTION:
Be careful not to damage connectors.
39. Remove A/T assembly harness connector from control valve with TCM using suitable tool.
40. Disconnect TCM connector and park/neutral position switch connector.
CAUTION:
Be careful not to damage connectors.
41. Remove rear extension assembly (2WD models) or adapter case assembly (4WD models) according to the following procedures.
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DISASSEMBLYAT-273
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a.2WD models

Self-sealing bolts (2)
i. Remove bolts for rear extension assembly and transmission case.
ii. Remove brackets (1).
iii. Tap rear extension assembly using suitable tool.
iv. Remove rear extension assembly with needle bearing from transmission case.
b. 4WD models

Self-sealing bolts (2)
i. Remove bolts for adapter case assembly and transmission case.
ii. Remove brackets (1).
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AT-274
DISASSEMBLY
Revision: November 20092006 QX56
iii. Tap adapter case assembly using suitable tool.
iv. Remove adapter case assembly with needle bearing from trans-
mission case.
v. Remove gasket from transmission case.
42. Remove bearing race from output shaft.
43. Remove output shaft from transmission case by rotating left/ right.
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DISASSEMBLYAT-275
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44. Remove parking gear from output shaft.
45. Remove seal rings from output shaft.
46. Remove needle bearing from transmission case.
47. Remove revolution sensor from transmission case.
CAUTION:

Do not subject it to impact by dropping or hitting it.

Be careful not to damage harness with the edge of case.

Do not allow metal filings or foreign material to get on the
sensor front edge magnetic area.

Do not place in an area affected by magnetism.
48. Remove reverse brake snap ring using 2 flat-bladed screwdriv- ers.
NOTE:
Press out snap ring from the transmission case oil pan side gap
using a flat-bladed screwdriver, and remove it using another
screwdriver.
49. Remove reverse brake retaining plate from transmission case.
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