Air INFINITI QX56 2010 Factory Service Manual

CONTROL VALVE WITH TCMTM-183
< ON-VEHICLE REPAIR >
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After completing installation, check A/T fluid leakage and fluid level. Refer to TM-148, "Checking the A/
T Fluid (ATF)".
1. Install new O-ring (1) in plug (2). CAUTION:
• Do not reuse O-ring.
• Apply ATF to O-ring.
• O-ring should be free of contamination.
2. Install plug (2) to bracket (1).
3. Install plug (1) [with bracket (2)] in control valve with TCM. Tighten plug bolt ( ) to the specified torque.
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
4. Install oil pan to transmission case. Refer to TM-170, "
Oil Pan".
5. Connect the negative battery terminal.
6. Refill the A/T with fluid and check the fluid level and for fluid leakage. Refer to TM-148, "
Checking the A/T
Fluid (ATF)".
JSDIA1313ZZ
JSDIA1312ZZ
JSDIA1311ZZ
Revision: April 20092010 QX56

TM-184
< ON-VEHICLE REPAIR >
REAR OIL SEAL
REAR OIL SEAL
Rear Oil SealINFOID:0000000005148742
REMOVAL AND INSTALLATION
Removal
1. Remove rear propeller shaft. Refer to DLN-196, "Removal and Installation".
2. Remove transfer from transmission (4WD models). Refer to DLN-141, "
Removal and Installation".
3. Remove rear oil seal using suitable tool. CAUTION:
Do not scratch rear extension assembly (2WD models) or
adapter case assembly (4WD models).
Installation
1. Install new rear oil seal until it is flush into the rear extensioncase (2WD models) using Tool or adapter case (4WD models)
using suitable tool.
CAUTION:
• Apply ATF to rear oil seal.
• Do not reuse rear oil seal.
2. Install transfer to transmission (4WD models). Refer to DLN-
141, "Removal and Installation".
3. Install rear propeller shaft. Refer to DLN-196, "
Removal and
Installation".
4. Check the A/T fluid level and for fluid leakage. Refer to TM-148,
"Checking the A/T Fluid (ATF)".
SCIA5254E
Tool number : ST33400001 (J-26082)
WCIA0475E
Revision: April 20092010 QX56

FLUID COOLER SYSTEMTM-185
< ON-VEHICLE REPAIR >
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FLUID COOLER SYSTEM
Exploded ViewINFOID:0000000005268405
Fluid Cooler
Removal and InstallationINFOID:0000000005268406
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 hose3. Fluid cooler
4. Fluid cooler hose 5. A/C condenser Front
Revision: April 20092010 QX56

TRANSMISSION ASSEMBLYTM-187
< REMOVAL AND INSTALLATION >
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8. Remove crankshaft position sens or (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.
9. Remove fluid cooler tube.
10. Remove dust cover from converter housing.
11. 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.
12. Support A/T assembly with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow
it to collide agai nst the drain plug.
13. Remove cross member using power tool.
14. Remove air breather hose. Refer to TM-166, "
Removal and
Installation".
15. Disconnect A/T assembly connector.
16. Remove A/T fluid charging pipe from A/T assembly.
17. Plug any openings such as the A/T fluid charging pipe hole.
18. Remove the A/T assembly to engine bolts using power tool.
19. 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 of the remaining components is in the revers e order of the removal, while paying attention to the
following:
LCIA0334E
LCIA0335E
SCIA0499E
Distance A : 24.0 mm (0.94 in) or more
SAT017B
Revision: April 20092010 QX56

TM-188
< REMOVAL AND INSTALLATION >
TRANSMISSION ASSEMBLY
• When installing transmission to the engine, attach the bolts in the order 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 tighten the bolts. Then tighten the bolts
with the specified torque. Refer to TM-186, "
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 sure that transmission rotates
freely without binding.
• Install crankshaft pos ition sensor (POS).
• After completing installation check fluid leakage, fluid level and the
positions of A/T. Refer to TM-148, "
Checking the A/T Fluid (ATF)", TM-164, "Checking of A/T Position" and
TM-164, "
Adjustment of A/T Position".
Removal and Installation (4WD)INFOID:0000000005148744
COMPONENTS
Transmission to engine
bolts : 113 N·m (12 kg-m, 83 ft-lb)
LCIA0371E
LCIA0335E
Revision: April 20092010 QX56

TM-190
< 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 tube 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 member 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 charging pipe.
15. Remove air breather hose. Refer to TM-166, "
Removal and Installation".
16. Disconnect A/T assembly connector and transfer unit connector.
17. Remove A/T fluid charging 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 TM-188,
"Removal and Installation (4WD)".
INSPECTION
Installation and Inspection of Torque Converter
LCIA0334E
LCIA0335E
Tool number : — (J-47002)
SCIA2203E
Revision: April 20092010 QX56

TRANSMISSION ASSEMBLYTM-191
< REMOVAL AND INSTALLATION >
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• 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-188, "
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-148, "
Checking the A/T Fluid (ATF)", TM-164, "Checking of A/T Position"
and TM-164, "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: April 20092010 QX56

TM-218
< DISASSEMBLY AND ASSEMBLY >
DISASSEMBLY
53. Remove spring retainer and return spring from transmissioncase.
54. Remove seal rings from drum support.
55. Remove needle bearing from drum support edge surface.
56. Remove reverse brake piston from transmission case using compressed air. Refer to TM-199, "
Oil Channel".
CAUTION:
Care should be taken not to ab ruptly blow air. It makes the
piston incline, and as a resu lt, it becomes hard to disas-
semble the pistons.
SCIA2324E
SCIA3333E
SCIA2796E
SCIA5047E
Revision: April 20092010 QX56

REPAIR FOR COMPONENT PARTSTM-223
< DISASSEMBLY AND ASSEMBLY >
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REPAIR FOR COMPONENT PARTS
Oil PumpINFOID:0000000005148749
COMPONENTS
DISASSEMBLY
1. Remove oil pump housing from oil pump cover.
2. Remove oil pump housing oil seal using suitable tool. CAUTION:
Be careful not to scratch oil pump housing.
1. O-ring 2. Oil pump cover3. O-ring
4. Oil pump housing 5. Oil pump housing oil seal
SCIA5227E
SCIA5228E
SCIA2840E
Revision: April 20092010 QX56

TM-224
< DISASSEMBLY AND ASSEMBLY >
REPAIR FOR COMPONENT PARTS
3. Remove O-ring from oil pump housing.
4. Remove O-ring from oil pump cover.
ASSEMBLY
1. Install new O-ring to oil pump cover.CAUTION:
• Do not reuse O-ring.
• Apply ATF to O-ring.
2. Install new O-ring to oil pump housing. CAUTION:
• Do not reuse O-ring.
• Apply ATF to O-ring.
SCIA2841E
SCIA5230E
SCIA5230E
SCIA2841E
Revision: April 20092010 QX56