2011 INFINITI QX56 transmission

TM-228
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
7. Attach the sliding hammers [SST: ST25850000 (J-25721-A)] (A)
to oil pump assembly (1) and extract it evenly from transmission
case.
CAUTION:
 Fully tighten the sliding hammer screws.
 Make sure that bearing race is installed to the oil pump
assembly edge surface.
8. Remove O-ring (1) from oil pump assembly.
9. Remove bearing race (1) from oil pump assembly.
10. Remove seal ring (1) from oil pump assembly.
B : Sliding hammer attachment position
JPDIA1109ZZ
JPDIA1110ZZ
J P D I A 1111 Z Z
JSDIA1721ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-229
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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11. Remove under drive sun gear (1) from under drive carrier assembly.
12. Remove needle bearing (1) from under drive sun gear.
13. Remove needle bearing (1) from under drive carrier assembly.
14. Remove front brake retaining plate, front brake drive plates, front brake driven plates, and front brake dish plate from trans-
mission case by using a wire (A) with its tip bent like a hook.
15. Remove snap ring (1) from transmission case using a flat- bladed screwdriver.
CAUTION:
 Be careful not to scratch transmission case and 1st one-
way clutch.
 Be careful not to damage snap ring.
JPDIA1112ZZ
JPDIA1113ZZ
JPDIA1114ZZ
JPDIA1115ZZ
JPDIA1116ZZ
Revision: 2010 May2011 QX56

TM-230
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
16. Remove input clutch assembly (with 1st one-way clutch, under
drive carrier assembly, front brake hub, front carrier assembly,
and rear internal gear) (1) from transmission case.
17. Remove 1st one-way clutch (1) from front brake hub.
18. Remove under drive carrier assembly (with front brake hub) (1) from front carrier assembly.
19. Remove needle bearing (1) from front carrier assembly.
20. Remove seal rings (1) from input clutch assembly.
JPDIA1117ZZ
JPDIA1118ZZ
JPDIA1119ZZ
JPDIA1120ZZ
JPDIA1121ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-231
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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21. Remove mid carrier assembly and rear carrier assembly as a unit.
22. Remove mid carrier assembly from rear carrier assembly.
23. Remove needle bearing (front side) from mid carrier assembly.
24. Remove needle bearing (rear side) from mid carrier assembly.
25. Remove bearing race from rear carrier assembly.
SCIA5017E
SCIA5697E
SCIA2805E
SCIA2804E
SCIA5175E
Revision: 2010 May2011 QX56

TM-232
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
26. Remove needle bearing from rear carrier assembly.
27. Remove mid sun gear assembly, rear sun gear assembly, and
high and low reverse clutch hub as a unit.
CAUTION:
Be careful to remove then with bearing race and needle
bearing.
28. 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.
29. Remove direct clutch assembly from reverse brake.
30. Remove needle bearing from drum support.
SCIA2803E
SCIA5018E
SCIA2306E
SCIA5019E
SCIA5198E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-233
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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31. Remove snap ring (1) from joint connector (A).
32. Push joint connector (A). CAUTION:
Be careful not to damage connector.
33. Remove clips (1) and oil pan mounting bolts ( ).
34. Remove oil pan (2) and oil pan gasket.
35. Remove magnets (1) from oil pan.
36. Disconnect output speed sensor connector (A). CAUTION:
Be careful not to damage connector.
37. Disengage terminal clips ( ).
JPDIA0007ZZ
JPDIA0008ZZ
: Front
JSDIA1591ZZ
JPDIA0009ZZ
JPDIA1104ZZ
Revision: 2010 May2011 QX56

TM-234
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
38. Remove control valve & TCM mounting bolts and clip (1) from
the control valve & TCM.
*: Reamer bolt
39. Remove the control valve & TCM (1) from transmission case.CAUTION:
When removing, never with the manual valve notch and
manual plate height. Remove it vertically.
40. Remove joint connector (1) from the control valve & TCM using a flat-bladed screwdriver (A).
41. Disconnect TCM connector (A). CAUTION:
Be careful not to damage connector.
42. Remove rear extension assembly (2WD) or adapter ca se assembly (4WD) according to the following pro-
cedures.
a. 2WD
: Front
Bolt symbol Length mm (in) Number of bolts A 43 (1.69) 3
B 40 (1.57) 2
C 54 (2.13) 6
D 50 (1.97) 2
E* 50 (1.97) 1
JPDIA1105ZZ
JSDIA1823ZZ
JSDIA1718ZZ
JSDIA1813ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-235
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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i. Remove tightening bolts for rear extension assembly and trans- mission case.
ii. Tap rear extension assembly using a soft hammer. CAUTION:
Be careful not to damage adapter case.
iii. Remove rear extension assembly from transmission case. (With needle bearing.)
iv. Remove bearing race from output shaft.
v. Remove output shaft from transmission case by rotating left/ right.
1 : Bracket
A: Bolt
B : Self-sealing bolt
JSDIA1845ZZ
SCIA5028E
SCIA5029E
SCIA5245E
SCIA5030E
Revision: 2010 May2011 QX56