INFINITI QX56 2011 Factory Service Manual

TRANSMISSION ASSEMBLYTM-233
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
C
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M A
B
TM
N
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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

TM-236
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
vi. Remove parking gear (1) from output shaft (2).
vii. Remove seal rings (1) from output shaft.
b.
4WD
i. Remove tightening bolts for adapter case assembly and trans- mission case.
JPDIA0029ZZ
JPDIA0030ZZ
1: Bracket
A: Bolt
B : Self-sealing bolt
JPDIA1155ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-237
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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ii. Tap adapter case assembly using a soft hammer. CAUTION:
Be careful not to damage adapter case.
iii. Remove adapter case 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.
vi. Remove gasket from transmission case.
SCIA5201E
SCIA5186E
SCIA5245E
SCIA5030E
SCIA5231E
Revision: 2010 May2011 QX56

TM-238
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
vii. Remove parking gear (1) from output shaft (2).
viii. Remove seal rings (1) from output shaft.
43. Remove needle bearing from transmission case.
44. Remove output speed sensor
(1) from transmission case.
CAUTION:
 Never subject it to impact by dropping or hitting it.
 Never disassemble.
 Never allow metal filings, etc. to get on the sensor's front
edge magnetic area.
 Never place in an area affected by magnetism.
45. Remove reverse brake snap ring (fixing plate) with 2 flat-bladed screwdrivers.
CAUTION:
 Be careful not to scratch transmission case and reversebrake retaining plate.
 Be careful not to damage snap ring.
NOTE:
Press out snap ring from the transmission case oil pan side gap
with a flat-bladed screwdriver, and remove it using a another
screwdriver.
46. Remove reverse brake retaining plate from transmission case.
JPDIA0029ZZ
JPDIA0030ZZ
SCIA5031E
: Bolt
JSDIA1321ZZ
SCIA5032E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-239
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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47. Remove N-spring from transmission case.
48. Remove reverse brake drive plat es, driven plates, dish plates,
and retaining plate transmission case.
49. Remove snap ring (fixing spring retainer) using a flat-bladed screwdriver.
CAUTION:
 Be careful not to scratch transmission case and springretainer.
 Be careful not to damage snap ring.
50. Remove reverse brake spring retainer and reverse brake return spring from transmission case.
51. Remove seal rings from drum support.
SCIA5214E
SCIA2322E
SCIA2323E
SCIA2324E
SCIA3333E
Revision: 2010 May2011 QX56

TM-240
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
52. Remove needle bearing from drum support edge surface.
53. Remove reverse brake piston (1) from transmission case with
compressed air. Refer to TM-222, "
Oil Channel".
CAUTION:
Care should be taken not to ab ruptly blow air. It makes pis-
tons incline, as the result, it becomes hard to disassemble
the pistons.
54. Remove D-rings from reverse brake piston.
55. Remove manual shaft retaining pin with pair of nippers. CAUTION:
Be careful not to cut retaining pin.
SCIA2796E
A : Reverse brake pressure hole
JSDIA1819ZZ
SCIA6330E
SCIA2329E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-241
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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56. Remove manual plate (1) from detent spring (2).
57. Remove parking rod (3) from manual plate.
58. Install manual plate to detent spring.
59. Use a pin punch [4 mm (0.16 in) dia. commercial service tool] to knock out retaining pin (1).
60. Remove manual plate from manual shaft.
61. Remove manual shaft from transmission case.
62. Remove manual shaft oil seals using a flat-bladed screwdriver. CAUTION:
Be careful not to scratch transmission case.
JPDIA1131ZZ
JPDIA1132ZZ
SCIA5715E
SCIA5716E
SCIA2331E
Revision: 2010 May2011 QX56

TM-242
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
63. Remove detent spring (1) from transmission case.
64. Remove needle bearing (1) from rear extension (2WD) or
adapter case (4WD).
65. Remove parking actuator support from rear extension (2WD) or adapter case (4WD).
66. Remove parking pawl (with return spring) and pawl shaft from rear extension (2WD) or adapter case (4WD).
67. Remove return spring (1) from parking pawl (2).
: Bolt
JPDIA1134ZZ
SCIA6179J
SCIA3423E
SCIA3424E
SCIA6180J
Revision: 2010 May2011 QX56