2007 INFINITI QX56 clutch

DISASSEMBLY
AT-241
< SERVICE INFORMATION >
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5. Remove O-ring from input clutch assembly.
6. Remove bolts for oil pump assembly and transmission case.
7. Extract oil pump assembly evenly from transmission case using
Tool.
CAUTION:
• Fully tighten sliding hammer screw.
• Make sure that bearing race is installed to the oil pump
assembly edge surface.
8. Remove O-ring from oil pump assembly.
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Tool number : ST25850000 (J-25721-A)
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AT-242
< SERVICE INFORMATION >
DISASSEMBLY
9. Remove bearing race from oil pump assembly.
10. Remove needle bearing from front sun gear assembly.
11. Remove front sun gear assembly from front carrier assembly.
NOTE:
Remove front sun gear assembly by rotating left/right.
12. Remove seal rings from input clutch assembly.
13. Remove front carrier assembly, input clutch assembly and rear
internal gear as a unit.
CAUTION:
Be careful to remove it with needle bearing.
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DISASSEMBLY
AT-245
< SERVICE INFORMATION >
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22. Remove mid sun gear assembly, rear sun gear assembly and
high and low reverse clutch hub as a unit.
CAUTION:
Be careful to remove them with bearing races and needle
bearing.
23. Remove high and low reverse clutch assembly from direct clutch
assembly.
CAUTION:
Make sure that needle bearing is installed to the high and
low reverse clutch assembly edge surface.
24. Remove direct clutch assembly from reverse brake.
25. Remove needle bearing from drum support edge surface.
26. Remove snap ring from A/T assembly harness connector.
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AT-260
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
3. Install new oil pump housing oil seal to the oil pump housing
until it is flush with the face of oil pump housing using Tool.
CAUTION:
• Do not reuse oil seal.
• Apply ATF to oil seal.
4. Install oil pump housing in oil pump cover. Tighten oil pump
housing bolts to the specified torque. Refer to AT-228, "
Compo-
nent".
Front Sun Gear, 3rd One-Way ClutchINFOID:0000000003532488
COMPONENTS
DISASSEMBLY
Tool number : ST33400001 (J-26082)
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1. Front sun gear 2. 3rd one-way clutch 3. Snap ring
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REPAIR FOR COMPONENT PARTS
AT-261
< SERVICE INFORMATION >
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1. Remove snap ring from front sun gear using suitable tool.
2. Remove 3rd one-way clutch from front sun gear.
INSPECTION
3rd One-way Clutch
• Check frictional surface for wear or damage.
CAUTION:
If necessary, replace the 3rd one-way clutch.
Front Sun Gear Snap Ring
• Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the snap ring.
Front Sun Gear
• Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the front sun gear.
ASSEMBLY
1. Install 3rd one-way clutch in front sun gear.
CAUTION:
Apply ATF to 3rd one-way clutch.
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AT-262
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
2. Install snap ring in front sun gear using suitable tool.
3. Check operation of 3rd one-way clutch.
a. Hold oil pump assembly and turn front sun gear.
b. Check 3rd one-way clutch for correct locking and unlocking
directions.
CAUTION:
If not as shown, check installation direction of 3rd one-way
clutch.
Front Carrier, Input Clutch, Rear Internal GearINFOID:0000000003532489
COMPONENTS
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SCIA3131E

REPAIR FOR COMPONENT PARTS
AT-263
< SERVICE INFORMATION >
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DISASSEMBLY
1. Seal ring 2. O-ring 3. Needle bearing
4. Bearing race 5. Front carrier assembly 6. Needle bearing
7. Snap ring 8. Snap ring 9. Retaining plate
10. Driven plate 11. Input clutch drum 12. Drive plate
13. Rear internal gear
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AT-264
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
1. Compress snap ring using suitable tool.
2. Remove front carrier assembly and input clutch assembly from
rear internal gear.
3. Remove front carrier assembly from input clutch assembly.
a. Remove bearing race from front carrier assembly.
b. Remove needle bearing from front carrier assembly.
c. Remove snap ring from front carrier assembly.
CAUTION:
Do not expand snap ring excessively.
4. Disassemble input clutch assembly.
a. Remove O-ring and seal rings from input clutch assembly.
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