2004 INFINITI QX56 transmission

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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ASSEMBLY
AT-309
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Revision: August 20072004 QX56
ASSEMBLYPFP:00000
Assembly (1)UCS002JQ
1. As shown in the right figure illustration, use a drift [commercial
service tool φ22 mm (0.87 in)] to drive manual shaft oil seals into
the transmission case until it is flush.
CAUTION:

Apply ATF to manual shaft oil seals.

Do not reuse manual shaft oil seals.
2. Install detent spring and spacer in transmission case. Tighten
mounting bolt to the specified torque. Refer to AT-261, "
Compo-
nents" .
3. Install manual shaft to transmission case.
4. Install parking rod to manual plate.
5. Install manual plate (with parking rod) to manual shaft.
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AT-310
ASSEMBLY
Revision: August 20072004 QX56
6. Install retaining pin into the manual plate and manual shaft.
a. Fit pinhole of the manual plate to pinhole of the manual shaft
with a pin punch.
b. Use a hammer to tap the retaining pin into the manual plate.
CAUTION:

Drive retaining pin to 2±0.5 mm over the manual
plate.

Do not reuse retaining pin.
7. Install retaining pin into the transmission case and manual shaft.
a. Fit pinhole of the transmission case to pinhole of the manual
shaft with a pin punch.
b. Use a hammer to tap the retaining pin into the transmission
case.
CAUTION:

Drive retaining pin to 5±1 mm over the transmis-
sion case.

Do not reuse retaining pin.
8. Install O-rings to servo assembly.
CAUTION:

Do not reuse O-rings.

Apply petroleum jelly to O-rings.
9. Install return spring to servo assembly.
10. Install servo assembly in transmission case.
11. Using snap ring pliers, install snap ring to transmission case.
12. Install D-rings in reverse brake piston.
CAUTION:

Do not reuse D-rings.

Apply ATF to D-rings.
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