INFINITI QX56 2009 Factory Service Manual

FLUID COOLER SYSTEMTM-213
< ON-VEHICLE REPAIR >
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FLUID COOLER SYSTEM
Exploded ViewINFOID:0000000005882663
Fluid Cooler
Removal and InstallationINFOID:0000000005882664
REMOVAL
1. Remove the radiator. Refer to CO-15, "Removal and Installation".
2. Disconnect the transmission fluid cooler hoses.
3. Remove the transmission fluid cooler.
INSTALLATION
Installation is in the reverse order of removal.
ALDIA0212GB
1. Radiator 2. Fluid cooler hose 3. Fluid cooler
4. Fluid cooler hose 5. A/C condenser Front
Revision: December 20092009 QX56

TM-214
< REMOVAL AND INSTALLATION >
TRANSMISSION ASSEMBLY
REMOVAL AND INSTALLATION
TRANSMISSION ASSEMBLY
Removal and Installation (2WD)INFOID:0000000005892371
COMPONENTS
REMOVAL
CAUTION:
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS) from
the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the battery negative terminal. Refer to PG-77, "Removal and Installation"
.
2. Remove A/T fluid indicator.
3. Remove engine under cover using power tool.
1. A/T fluid indicator pipe 2. A/T fluid indicator 3. O-ring
4. Transmission assembly 5. Fluid cooler tube 6. A/T cross member
7. Insulator 8. Copper washers
AWDIA0553GB
Revision: December 20092009 QX56

TRANSMISSION ASSEMBLYTM-215
< REMOVAL AND INSTALLATION >
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4. Remove crankshaft position sensor (POS) from A/T assembly. CAUTION:
 Do not subject it to impact by dropping or hitting it.
 Do not disassemble.
 Do not allow metal filings or foreign material to get on the
sensor front edge magnetic area.
 Do not place in an area affected by magnetism.
5. Remove A/T fluid indicator pipe.
6. Remove exhaust front tube and center muffler using power tool. Refer to EX-6, "Removal and Installation"
.
7. Remove rear propeller shaft. Refer to DLN-196, "Removal and
Installation".
8. Disconnect A/T shift selector cable. Refer to TM-196, "A/T Shift Selector Removal and Installation"
.
9. Remove A/T fluid cooler tubes from A/T assembly.
10. Support A/T assembly with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug.
11. Remove dust cover from converter housing.
12. Turn crankshaft to access and remove the four bolts for drive plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
13. Remove air breather hose. Refer to TM-197, "2WD : Removal
and Installation".
14. Disconnect A/T assembly harness connector.
15. Plug any openings such as the A/T fluid indicator pipe hole.
16. Remove the A/T assembly to engine bolts using power tool.
17. Remove A/T assembly from vehicle using transmission jack. CAUTION:
 Secure torque converter to prevent it from dropping.
 Secure A/T assembly to a transmission jack.
INSPECTION
Installation and Inspection of Torque Converter
 After inserting a torque converter to a transmission, be sure to check distance A to ensure it is within specifications.
INSTALLATION
Installation is in the reverse order of removal, while paying attention to the following:
LCIA0334E
LCIA0335E
SCIA0499E
Distance A : 24.0 mm (0.94 in) or more
SAT017B
Revision: December 20092009 QX56

TM-216
< REMOVAL AND INSTALLATION >
TRANSMISSION ASSEMBLY
 When installing transmission to the engine, attach the bolts in theorder as shown.
CAUTION:
 When replacing an engine or transmission you must make
sure the dowels are installe d correctly during re-assembly.
 Improper alignment caused by missing dowels may cause
vibration, oil leaks or breakage of drivetrain components.
NOTE:
*: No.2 bolt also secures air breather vent.
 Align the positions of bolts for drive plate with those of the torque converter, and temporarily tight en the bolts. Then tighten the bolts
with the specified torque. Refer to TM-214, "Removal and Installa-
tion (2WD)".
CAUTION:
 When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
 After converter is installed to drive plate, rotate crankshaft several turns and check to be su re that transmission rotates
freely without binding.
 Install crankshaft position sensor (POS).
 After completing installation check fluid leakage, fluid level and the positions of A/T. Refer to TM-179, "Checking the A/T Fluid (ATF)"
, TM-195, "Checking of A/T Position" and
TM-195, "Adjustment of A/T Position"
.
Removal and Installation (4WD)INFOID:0000000005892372
COMPONENTS
Transmission to engine bolts : 113 N·m (12 kg-m,
83 ft-lb)
LCIA0371E
LCIA0335E
Revision: December 20092009 QX56

TRANSMISSION ASSEMBLYTM-217
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REMOVAL
CAUTION:
When removing the A/T assembly from engine, firs t remove the crankshaft position sensor (POS) from
the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the negative battery terminal.
2. Remove engine cover using power tool.
3. Remove A/T fluid indicator.
4. Remove under covers using power tool (if equipped).
5. Remove exhaust front tube and center muffler using power tool. Refer to EX-6, "Removal and Installa-
tion".
6. Remove propeller shafts. Refer to DLN-186, "Removal and Installation"
(front) and DLN-196, "Removal
and Installation" (rear).
7. Disconnect A/T shift selector cable. Refer to TM-196, "A/T Shift Selector Removal and Installation"
.
1. A/T fluid indicator pipe 2. A/T fluid indicator 3. O-ring
4. Transmission assembly 5. Fluid cooler tube 6. Copper washer
7. A/T cross member 8. Insulator
AWDIA0548GB
Revision: December 20092009 QX56

TM-218
< REMOVAL AND INSTALLATION >
TRANSMISSION ASSEMBLY
8. Remove crankshaft position sensor (POS) from A/T assembly.CAUTION:
 Do not subject it to impact by dropping or hitting it.
 Do not disassemble.
 Do not allow metal filings or fo reign material to get on the
sensor front edge magnetic area.
 Do not place in an area affected by magnetism.
9. Remove A/T fluid cooler tubes from A/T assembly.
10. Remove dust cover from converter housing.
11. Turn crankshaft, and remove the four bolts for drive plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
12. Support A/T assembly using transmission jack and Tool. CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug.
NOTE:
The actual special service tool may differ from tool shown.
13. Remove cross members using power tool.
14. Tilt the transmission slightly to keep the cl earance between body and transmission, then disconnect air
breather hose from A/T fluid indicator pipe. Refer to TM-197, "4WD : Removal and Installation"
.
15. Disconnect the following.  Neutral 4 low switch
 Wait detection switch
 Transfer motor connector
 A/T assembly connector
 Transfer control device connector
 ATP switch connector
 Transfer terminal cord assembly connector
16. Remove air breather hose assembly. Refer to TM-197, "4WD : Removal and Installation"
.
17. Remove A/T fluid indicator pipe.
18. Plug any openings such as the fluid charging pipe hole.
19. Remove A/T assembly to engine bolts using power tool.
20. Remove A/T assembly with transfer from vehicle. CAUTION:
 Secure torque converter to prevent it from dropping.
 Secure A/T assembly to transmission jack.
21. Remove transfer from A/T assembly. Refer to DLN-141,
"Removal and Installation".
LCIA0334E
LCIA0335E
Tool number : — (J-47002)
SCIA2203E
Revision: December 20092009 QX56

TRANSMISSION ASSEMBLYTM-219
< REMOVAL AND INSTALLATION >
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INSPECTION
Installation and Inspection of Torque Converter
 After inserting a torque converter to a transmission, be sure to check distance A to ensure it is within specifications.
INSTALLATION
Installation of the remaining components is in the revers e order of removal, while paying attention to the fol-
lowing:
 When installing transmission to the engine, attach the bolts as shown.
CAUTION:
 When replacing an engine or transmission you must make sure the dowels are installed correctly during re-assembly.
 Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drivetrain components.
NOTE:
*: No.2 bolt also secures air breather vent.
 Align the positions of bolts for dr ive plate with those of the torque
converter, and temporarily tighten the bolts. Then tighten the bolts
with the specified torque. Refer to TM-216, "Removal and Installa-
tion (4WD)".
CAUTION:
 When turning crankshaft, turn it clockwise as viewed from the
front of the engine.
 After converter is installed to drive plate, rotate crankshaft
several turns and check to be sure that transmission rotates
freely without binding.
 Install crankshaft position sensor (POS).
 After completing installation, check fluid leakage, fluid level, and the positions of A/T. Refer to TM-179, "Checking the A/T Fluid (ATF)"
, TM-195, "Checking of A/T Position"
and TM-195, "Adjustment of A/T Position".
Distance A : 24.0 mm (0.94 in) or more
SAT017B
Transmission to engine bolts : 113 N·m (12 kg-m,
83 ft-lb)
LCIA0371E
LCIA0335E
Revision: December 20092009 QX56

TM-220
< DISASSEMBLY AND ASSEMBLY >
OVERHAUL
DISASSEMBLY AND ASSEMBLY
OVERHAUL
ComponentINFOID:0000000004187486
WCIA0661E
Revision: December 20092009 QX56

OVERHAULTM-221
< DISASSEMBLY AND ASSEMBLY >
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1. O-ring 2. Oil pump cover 3. O-ring
4. Oil pump housing 5. Self-sealing bolts 6. Torque converter
7. Converter housing 8. Oil pump housing oil seal 9. Bearing race
10. Needle bearing 11. O-ring 12. Front carrier assembly
13. Needle bearing 14. Snap ring 15. Front sun gear
16. 3rd one-way clutch 17. Snap ring 18. Bearing race
19. Needle bearing 20. Seal ring 21. Input clutch assembly
22. Needle bearing 23. Rear internal gear 24. Brake band
25. Mid carrier assembly 26. Needle bearing 27. Bearing race
28. Rear carrier assembly 29. Needle bearing 30. Mid sun gear
31. Seal ring 32. Rear sun gear 33. 1st one-way clutch
34. Snap ring 35. Needle bearing 36. High and low reverse clutch hub
37. Snap ring 38. Bearing race 39. Needle bearing
Revision: December 20092009 QX56

TM-222
< DISASSEMBLY AND ASSEMBLY >
OVERHAUL
1. Needle bearing 2. Bearing race 3. High and low reverse clutch assembly
4. Needle bearing 5. Direct clutch assembly 6. Reverse brake dish plate
7. Reverse brake dish plate 8. Reverse brake driven plate 9. N-spring
10. Reverse brake drive plate 11. Reverse brake retaining plate 12. Snap ring
13. D-ring 14. D-ring 15. Reverse brake piston
16. Return spring 17. Spring retainer 18. Snap ring
SCIA7001E
Revision: December 20092009 QX56