torque INFINITI QX56 2011 Factory Service Manual

TRANSMISSION ASSEMBLYTM-209
< UNIT REMOVAL AND INSTALLATION > [7AT: RE7R01B]
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12. Remove crankshaft position sensor (POS) from A/T assembly. Refer to EM-106, "Exploded View".
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.
13. Remove rear plate cover. Refer to EM-54, "
Exploded View".
14. Turn crankshaft, and remove the four tightening bolts for drive plate and torque converter. CAUTION:
When turning the crankshaft, turn it clock wise as viewed from the front of the engine.
15. Remove A/T fluid cooler tube A and D. Refer to TM-202, "
Exploded View".
NOTE:
Cap or plug openings to prevent fluid from spilling.
16. Support transfer assembly with a transmission jack.
17. Remove bolts fixing A/T assembly to engine with a power tool.
18. Disconnect connectors from A/T assembly and transfer assembly.
19. Remove harness and brackets from A/T assembly and transfer assembly.
20. Remove A/T assembly with transfer assembly from the vehicle. CAUTION:
 Secure torque converter to prevent it from dropping.
 Secure A/T assembly to a transmission jack.
21. Remove air breather hoses and bracket. Refer to TM-200, "
4WD
: Exploded View" (for A/T) and DLN-121, "Removal and Installa-
tion" (for transfer).
22. Remove manual lever from A/T assembly. Refer to TM-178,
"Exploded View".
23. Remove transfer assembly from A/T assembly with power tool. Refer to DLN-121, "
Removal and Installation".
NOTE:
Cap or plug opening to prevent fluid from spilling.
INSTALLATION
Note the following, and Install in the reverse order of removal.
 Check fitting of dowel pin ( ).
 When installing A/T assembly to the engine, be sure to check dimension “A” to ensure it is within the reference value limit.
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B: Scale
C : Straightedge
Dimension “A” : Refer to TM-297, "Torque Convert-
er".
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TM-210
< UNIT REMOVAL AND INSTALLATION >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
 When installing A/T assembly to the engine, attach the fixing bolts
in accordance with the following standard.
*: Tightening the bolt with bracket (and washer). Refer to TM-200, "4WD : Exploded View".
 Align the positions of tightening bolts for drive plate with those of the torque converter, and temporarily
tighten the bolts. Then, tighten the bolts with the specified torque.
CAUTION:
 When turning crankshaft, turn it clockwi se as viewed from the front of the engine.
 When tightening the tightening bolts for the torque converter after fixing the crankshaft pulley
bolts, be sure to confirm the tightening torque of the crankshaft pulley mounting bolts. Refer to
EM-62, "
Removal and Installation".
 Rotate crankshaft several turns and check to be sure that A/T rotates freely without binding after
converter is installed to drive plate.
4WD : Inspection and AdjustmentINFOID:0000000006226912
INSPECTION AFTER INSTALLATION
 Check A/T fluid leakage.
 Check A/T position after adjusting A/T position. Refer to TM-101, "
Inspection".
ADJUSTMENT AFTER INSTALLATION
 Adjust A/T fluid level. Refer to TM-95, "Adjustment".
 Adjust A/T position. Refer to TM-101, "
Inspection".
 Perform decel G sensor calibration w hen replacing A/T assembly. Refer to TM-91, "
Special Repair Require-
ment".
Bolt symbol A
Insertion direction A/T assembly to engine
Number of bolts 9
Bolt length “L”
mm (in) 70 (2.76)
Tightening torque
N·m (kg-m, ft-lb) 113 (12, 83)
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TM-212
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
1. Torque converter 2. Converter housing 3. Oil pump housing oil seal
4. Oil pump housing 5. O-ring 6. Oil pump cover
7. O-ring 8. D-ring 9. D-ring
10. Front brake piston 11. Front brake spring retainer 12. Snap ring
13. D-ring 14. D-ring 15. 2346 brake piston
16. 2346 brake spring retainer 17. Snap ring 18. Seal ring
19. 2346 brake dish plate 20. 2346 brake driven plate 21. 2346 brake drive plate
22. 2346 brake retaining plate 23. Snap ring 24. Bearing race
25. Needle bearing 26. Under drive sun gear 27. Needle bearing
28. Front brake retaining plate 29. Front brake drive plate 30. Front brake driven plate
31. Front brake retaining plate 32. Snap ring 33. 1st one-way clutch
34. Snap ring 35. Under drive carrier assembly 36. Front brake hub assembly
: Apply Genuine RTV silicone sealant or equivalent. Refer to GI-22, "
Recommended Chemical Products and Sealants".
Refer to GI-4, "
Components" for symbols not described on the above.
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TRANSMISSION ASSEMBLYTM-217
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1. Torque converter 2. Converter housing 3. Oil pump housing oil seal
4. Oil pump housing 5. O-ring 6. Oil pump cover
7. O-ring 8. D-ring 9. D-ring
10. Front brake piston 11. Front brake spring retainer 12. Snap ring
13. D-ring 14. D-ring 15. 2346 brake piston
16. 2346 brake spring retainer 17. Snap ring 18. Seal ring
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TRANSMISSION ASSEMBLYTM-227
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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2. Remove torque converter by holding it firmly and turning while pulling straight out.
3. Remove tightening bolts ( ) for converter housing and trans- mission case.
4. Remove converter housing from transmission case. CAUTION:
Be careful not to scratch converter housing.
5. Remove O-ring from input clutch assembly.
6. Remove tightening bolts ( ) for oil pump assembly and trans- mission case.
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TRANSMISSION ASSEMBLYTM-243
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68. Remove rear oil seal from rear extension (B) or adapter case (C) using a flat-bladed screwdriver (A).
CAUTION:
Be careful not to scratch adapter case.
AssemblyINFOID:0000000006226918
1. As shown in the figure, use a drift [22 mm (0.87 in) dia. commer-cial service tool] to drive manual shaft oil seals into the transmis-
sion case until it is flush.
CAUTION:
 Never reuse manual shaft oil seals.
 Apply ATF to manual shaft oil seals.
2. Install detent spring to transmission case. Tighten detent spring bolt to the specified torque.
B: 2WD
C: 4WD
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: Bolt
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TRANSMISSION ASSEMBLYTM-247
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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17. Install snap ring in transmission case. CAUTION:
Be careful not to damage snap ring.
18. Measure clearance between retaining plate and snap ring. If not within specified clearance, select proper retaining plate.
19. Install needle bearing to transmission case. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
20. Install output speed sensor (1) to transmission case. Tighten revolution sensor bolt to the specified torque.
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.
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Specified clearance “A”
Standard: TM-298, "
Reverse Brake Clearance".
Retaining plate: Refer to TM-298, "
Reverse Brake Clear-
ance"
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: Bolt
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TM-250
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
iv. Install bearing race to output shaft.
v. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-22, "
Recommended Chemical Prod-
ucts and Sealants".) to rear extension assembly as shown in the
figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc.
from the transmission case and rear extension assembly
mounting surfaces.
vi. Install rear extension assembly to transmission case. CAUTION:
Insert the tip of parking rod between the parking pawl and
the parking actuator support when assembling the rear
extension assembly.
vii. Tighten rear extension assembly bolts to the specified torque.
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Sealant starting
point and end-
point (A) : Start and finish
point shall be in
the center of two bolts.
Overlap width of
sealant starting
point and end-
point (B) : 3 – 5 mm (0.12 – 0.20 in)
Sealant width (C) : 1.0 – 2.0 mm (0.04 – 0.08 in)
Sealant height (C) : 0.4 – 1.0 mm (0.016 – 0.04 in)
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1: Bracket
A: Bolt
B : Self-sealing bolt
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TM-252
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
v. Install gasket onto transmission case.
CAUTION:
 Completely remove all moisture, oil and old gasket, etc.from the transmission case and adapter case assembly
mounting surfaces.
 Never reuse gasket.
vi. Install adapter case assembly to transmission case. CAUTION:
Insert the tip of parking rod between the parking pawl and
the parking actuator support when assembling the adapter
case assembly.
vii. Tighten adapter case assembly bolts to the specified torque.
27. Install needle bearing in drum support. CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
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1: Bracket
A: Bolt
B : Self-sealing bolt
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Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-263
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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55. Install under drive sun gear (with needle bearing) (1) to oil pump assembly (2).
56. Install oil pump assembly (with under drive sun gear) to trans- mission case.
CAUTION:
Apply ATF to oil pump bearing.
57. Apply recommended sealant to oil pump assembly as shown in the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc.
from the oil pump mounting bolts and oil pump mounting
bolt mounting surfaces.
58. Tighten oil pump bolts ( ) to the specified torque. CAUTION:
Apply ATF to oil pump bushing.
59. Install O-ring to input clutch assembly.
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: Genuine RTV silicone sealant or equivalent. Refer to
GI-22, "
Recommended Chemical Products and Seal-
ants".
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Revision: 2010 May2011 QX56