2004 INFINITI QX56 transmission oil

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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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-314
ASSEMBLY
Revision: August 20072004 QX56
24. Install revolution sensor to transmission case. Tighten revolution
sensor mounting bolt to the specified torque. Refer to AT-261,
"Components" .
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.
25. As shown in the right figure illustration, use a drift to drive rear
oil seal into the rear extension (2WD models) or adapter case
(4WD models) until it is flush.
CAUTION:

Apply ATF to rear oil seal.

Do not reuse rear oil seal.
26. Install return spring to parking pawl.
27. Install parking pawl (with return spring) and pawl shaft to rear
extension (2WD models) or adapter case (4WD models).
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AT-316
ASSEMBLY
Revision: August 20072004 QX56
33. Install bearing race in output shaft.
34. Install rear extension assembly (2WD models) or adapter case assembly (4WD models) according to the
following procedures.
a.2WD models
i. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-45, "
Recommended Chemical Prod-
ucts and Sealants" .) to rear extension assembly as shown in
illustration.
CAUTION:
Complete remove all moisture, oil and old sealant, etc.
From the transmission case and rear extension assembly
mounting surfaces.
ii. Install rear extension assembly to transmission case.
iii. Install bracket.
iv. Tighten rear extension assembly mounting bolts to specified
torque.
CAUTION:
Do not reuse self-sealing bolt.
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Rear extension assembly mounting bolt:
: 52 N·m (5.3 kg-m, 38 ft-lb)
Self-sealing bolt:
: 61 N·m (6.2 kg-m, 45 ft-lb)
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ASSEMBLY
AT-317
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Revision: August 20072004 QX56
b.4WD models
i. Install gasket to transmission case.
CAUTION:

Do not reuse gasket.

Complete remove all moisture, oil and old gasket, etc.
From the transmission case and adapter case assembly
mounting surfaces.
ii. Install adapter case assembly to transmission case.
iii. Install bracket.
iv. Tighten adapter case assembly mounting bolts to specified
torque.
CAUTION:
Do not reuse self-sealing bolt.
35. Install needle bearing in drum support edge surface.
CAUTION:
Apply petroleum jelly to needle bearing.
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Adapter case assembly mounting bolt:
: 52 N·m (5.3 kg-m, 38 ft-lb)
Self-sealing bolt:
: 61 N·m (6.2 kg-m, 45 ft-lb)
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ASSEMBLY
AT-323
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Revision: August 20072004 QX56
b. Measure dimension “L”.
c. Calculate dimension “J”.
2. Measure dimensions “M
1 ” and “M2 ” and then calculate dimen-
sion “M”.
a. Place bearing race and needle bearing on oil pump assembly.
b. Measure dimension “M
1 ”.
c. Measure dimension “M
2 ”. “J”: Distance between oil pump fitting surface of
transmission case and needle bearing mating surface
of front sun gear.
J = K – L
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AT-324
ASSEMBLY
Revision: August 20072004 QX56
d. Calculate dimension “M”.
3. Adjust total end play “T
1 ”.

Select proper thickness of bearing race so that total end play
is within specifications.
Assembly (2)UCS002JS
1. Install O-ring to oil pump assembly.
CAUTION:

Do not reuse O-ring.

Apply ATF to O-ring.
2. Install bearing race to oil pump assembly.
CAUTION:
Apply petroleum jelly to bearing race.“M”: Distance between transmission case fitting sur-
face of oil pump and needle bearing on oil pump.
M = M
1 – M2
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T1 = J – M
Total end play “T
1 ”:
0.25 - 0.55 mm (0.0098 - 0.0217 in)
Bearing races:
Refer to AT- 3 3 3 , "
BEARING RACE FOR ADJUST-
ING TOTAL END PLAY" .SCIA2810E
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