INFINITI QX56 2004 Factory Service Manual

AT-280
DISASSEMBLY
Revision: August 20072004 QX56
31. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
32. Straighten terminal clip to free A/T fluid temperature sensor 2
harness.
33. Disconnect revolution sensor connector.
CAUTION:
Be careful not to damage connector.
34. Straighten terminal clips to free revolution sensor harness.
35. Remove bolts A, B and C from control valve with TCM.
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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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DISASSEMBLY
AT-281
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Revision: August 20072004 QX56
36. 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.
37. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
38. Remove bracket from A/T fluid temperature sensor 2.
39. Remove O-ring from A/T assembly harness connector.
40. Remove rear extension assembly (2WD models) or adapter case assembly (4WD models) according to
the following procedures.
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AT-282
DISASSEMBLY
Revision: August 20072004 QX56
a.2WD models
i. Remove tightening bolts for rear extension assembly and trans-
mission case.
ii. Remove bracket.
iii. Tap rear extension assembly with soft hammer.
iv. Remove rear extension assembly from transmission case. (With
needle bearing)
b.4WD models
i. Remove tightening bolts for adapter case assembly and trans-
mission case.
ii. Remove bracket.
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DISASSEMBLY
AT-283
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Revision: August 20072004 QX56
iii. Tap adapter case assembly with soft hammer.
iv. Remove adapter case assembly from transmission case. (With
needle bearing)
v. Remove gasket from transmission case.
41. Remove bearing race from output shaft.
42. Remove output shaft from transmission case by rotating left/
right.
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AT-284
DISASSEMBLY
Revision: August 20072004 QX56
43. Remove parking gear from output shaft.
44. Remove seal rings from output shaft.
45. Remove needle bearing from transmission case.
46. 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, etc., to get on the sensor's
front edge magnetic area.

Do not place in an area affected by magnetism.
47. Remove reverse brake snap ring (fixing plate) using 2 flat-
bladed screwdrivers.
NOTE:
Press out snap ring from the transmission case oil pan side gap
using a flat-bladed screwdriver, and remove it using another
screwdriver.
48. Remove reverse brake retaining plate from transmission case.
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DISASSEMBLY
AT-285
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Revision: August 20072004 QX56
49. Remove N-spring from transmission case.
50. Remove reverse brake drive plates, driven plates and dish plate
from transmission case.
51. Set SST on spring retainer and remove snap ring (fixing spring
retainer) from transmission case while compressing return
spring.
52. Remove spring retainer and return spring from transmission
case.
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AT-286
DISASSEMBLY
Revision: August 20072004 QX56
53. Remove seal rings from drum support.
54. Remove needle bearing from drum support edge surface.
55. Remove reverse brake piston from transmission case with com-
pressed air. Refer to AT-269, "
Oil Channel" .
CAUTION:
Care should be taken not to abruptly blow air. It makes pis-
tons incline, as the result, it becomes hard to disassemble
the pistons.
56. Remove D-rings from reverse brake piston.
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DISASSEMBLY
AT-287
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Revision: August 20072004 QX56
57. Use a pin punch (4mm dia. commercial service tool) to knock
out retaining pin.
58. Remove manual shaft retaining pin with pliers.
59. Remove manual plate (with parking rod) from manual shaft.
60. Remove parking rod from manual plate.
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.
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AT-288
DISASSEMBLY
Revision: August 20072004 QX56
63. Remove detent spring and spacer from transmission case.
64. Using snap ring pliers, remove snap ring from transmission
case.
65. Remove servo assembly (with return spring) from transmission
case.
66. Remove return spring from servo assembly.
67. Remove O-rings from servo assembly.
68. Remove parking actuator support from rear extension (2WD
models) or adapter case (4WD models).
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DISASSEMBLY
AT-289
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Revision: August 20072004 QX56
69. Remove parking pawl (with return spring) and pawl shaft from
rear extension (2WD models) or adapter case (4WD models).
70. Remove return spring from parking pawl.
71. Remove needle bearing from rear extension (2WD models) or
adapter case (4WD models).
72. Remove rear oil seal from rear extension (2WD models) or
adapter case (4WD models).
CAUTION:
Be careful not to scratch rear extension (2WD models) or
adapter case (4WD models).
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