INFINITI QX4 2005 Factory Service Manual

AT-310
ASSEMBLY
Revision: October 20052005 QX56
46. Install front carrier assembly, input clutch assembly and rear
internal gear as a unit.
47. Install new seal rings in input clutch assembly.
CAUTION:

Do not reuse seal rings.

Apply petroleum jelly to seal rings.
48. Install new band servo anchor end pin and lock nut in transmis-
sion case.
CAUTION:
Do not reuse band servo anchor end pin.
49. Install brake band in transmission case.
CAUTION:
Assemble it so that identification to avoid incorrect installa-
tion faces servo side.
50. Install front sun gear assembly to front carrier assembly.
CAUTION:
Apply ATF to front sun gear radial bearing and 3rd one-way
clutch end bearing.
SCIA5173E
SCIA5269E
SCIA5016E
SCIA5498E
SCIA5014E

ASSEMBLY
AT-311
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
51. Install needle bearing in front sun gear assembly.
CAUTION:
Apply petroleum jelly to needle bearing.
52. Adjust brake band tilting using clips so that brake band contacts
front sun gear drum evenly.
53. Adjust brake band.
a. Loosen lock nut.
b. Tighten band servo anchor end pin to specified torque.
c. Back of band servo anchor end pin three turns.
d. Holding band servo anchor end pin, tighten lock nut to specified
torque. Refer to AT-250, "
Components" .
AdjustmentECS00CLD
TOTAL END PLAY

Measure clearance between front sun gear and bearing race for
oil pump cover.

Select proper thickness of bearing race so that end play is within
specifications.
SCIA2808E
SCIA5033E
Band servo anchor
end pin torque:: 5.0 N·m (0.51 kg-m, 44 in-lb)
SCIA5498E
SCIA2810E

AT-312
ASSEMBLY
Revision: October 20052005 QX56
1. Measure dimensions “K” and “L” and then calculate dimension
“J”.
a. Measure dimension “K”.
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.
SCIA5350E
SCIA5351E
“J”: Distance between oil pump fitting surface of
transmission case and needle bearing mating surface
of front sun gear.
J = K – L
SCIA5352E
SCIA3125E
SCIA3124E

ASSEMBLY
AT-313
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
b. Measure dimension “M1 ”.
c. Measure dimension “M
2 ”.
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.
SCIA3126E
SCIA3127E
“M”: Distance between transmission case fitting sur-
face of oil pump and needle bearing on oil pump.
M = M
1 – M2
SCIA3125E
T1 = J – M
Total end play “T
1 ”:
0.25 - 0.55 mm (0.0098 - 0.0217 in)
Bearing races:
Refer to AT-323, "
BEARING RACE FOR ADJUST-
ING TOTAL END PLAY" .SCIA2810E

AT-314
ASSEMBLY
Revision: October 20052005 QX56
Assembly (2)ECS00CLE
1. Install new 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.
3. Install oil pump assembly in transmission case.
CAUTION:
Apply ATF to oil pump radial bearing.
4. Apply recommended sealant (Genuine RTV Silicone Sealant or
equivalent. Refer to GI-45, "
Recommended Chemical Products
and Sealants" .) to oil pump assembly as shown.
CAUTION:
Complete remove all moisture, oil and old sealant, etc.
From the oil pump bolts and oil pump bolt surfaces.
SCIA5172E
SCIA5252E
SCIA2 811 E
SCIA5321E

ASSEMBLY
AT-315
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
5. Tighten oil pump bolts to specified torque. Refer to AT-250,
"Components" .
CAUTION:
Apply ATF to oil pump bushing.
6. Install new O-ring to input clutch assembly.
CAUTION:

Do not reuse O-ring.

Apply ATF to O-ring.
7. Install converter housing to transmission case.
CAUTION:
Do not reuse self-sealing bolt.
8. Make sure that brake band does not close turbine revolution
sensor hole.
9. Install control valve with TCM.
a. Install A/T fluid temperature sensor 2 to bracket.
SCIA2300E
SCIA5 011 E
Converter housing
bolt: 52 N·m (5.3 kg-m, 38 ft-lb)
Self-sealing bolt : 61 N·m (6.2 kg-m, 45 ft-lb)
SCIA5171E
SCIA5034E
SCIA5264E

AT-316
ASSEMBLY
Revision: October 20052005 QX56
b. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 bolt to
the specified torque. Refer to AT-250, "
Components" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
c. Install new O-ring to A/T assembly harness connector.
CAUTION:

Do not reuse O-ring.

Apply ATF to O-ring.
d. Connect TCM connector and park/neutral position switch con-
nector.
e. Install A/T assembly harness connector to control valve with
TCM.
f. Connect TCM connectors.
SCIA5301E
SCIA5155E
SCIA5449E
SCIA5450E
SCIA5447E

ASSEMBLY
AT-317
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
g. Install control valve with TCM in transmission case.
CAUTION:

Make sure that turbine revolution sensor securely installs
turbine revolution sensor hole.

Adjust A/T assembly harness connector of control valve
with TCM to terminal hole of transmission case.

Hang down revolution sensor harness toward outside so
as not to disturb installation of control valve with TCM.

Assemble it so that manual valve cutout is engaged with
manual plate projection.
h. Install bolts A, B and C to control valve with TCM.
i. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. After
that tighten them in order (1 → 2 → 3), and then tighten other
bolts.
j. Tighten control valve with TCM bolts to the specified torque.
Refer to AT- 2 5 0 , "
Components" .
10. Connect A/T fluid temperature sensor 2 connector.
SCIA5034E
SCIA5035E
Bolt symbol Length: mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA5025E
SCIA5037E
SCIA5023E

AT-318
ASSEMBLY
Revision: October 20052005 QX56
11. Securely fasten terminal cord assembly and A/T fluid tempera-
ture sensor 2 harness with terminal clips.
12. Connect revolution sensor connector.
13. Securely fasten revolution sensor harness with terminal clips.
14. Pull down A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
15. Install snap ring to A/T assembly harness connector.
SCIA5446E
SCIA5024E
SCIA5293E
SCIA5299E
SCIA5300E

ASSEMBLY
AT-319
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: October 20052005 QX56
16. Install magnets in oil pan.
17. Install oil pan to transmission case.
a. Install new oil pan gasket to oil pan.
CAUTION:

Do not reuse oil pan gasket.

Install it in the direction to align hole positions.

Complete remove all moisture, oil and old gasket, etc. From the oil pan gasket mounting sur-
faces.
b. Install oil pan (with new oil pan gasket) to transmission case.
CAUTION:

Install it so that drain plug comes to the position as
shown.

Be careful not to pinch harnesses.

Complete remove all moisture, oil and old gasket, etc.
From the oil pan mounting surfaces.
c. Tighten oil pan bolts to the specified torque in numerical order
shown after temporarily tightening them. Refer to AT - 2 5 0 , "
Com-
ponents" .
CAUTION:
Do not reuse oil pan bolts.
18. Install drain plug to oil pan. Tighten drain plug to the specified
torque. Refer to AT-250, "
Components" .
CAUTION:
Do not reuse drain plug gasket.
19. Install torque converter.
a. Pour ATF into torque converter.

Approximately 2 liter (2-1/8 US qt, 1-3/4 Imp qt) of fluid is
required for a new torque converter.

When reusing old torque converter, add the same amount
of fluid as was drained.
SCIA5200E
SCIA2308E
SCIA4 113 E
SAT4 2 8DA