2009 INFINITI QX56 clutch

TM-234
< DISASSEMBLY AND ASSEMBLY >
DISASSEMBLY
9. Remove bearing race from oil pump assembly.
10. Remove needle bearing from front sun gear.
11. Remove front sun gear assembly from front carrier assembly.NOTE:
Remove front sun gear by rotating it left and right.
12. Remove seal rings from input clutch assembly.
13. Remove front carrier assembly (with input clutch assembly and rear internal gear) from rear carrier assembly.
CAUTION:
Do not remove it with needle bearing.
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Revision: December 20092009 QX56

DISASSEMBLYTM-237
< DISASSEMBLY AND ASSEMBLY >
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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:
Remove them with bearing race 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 needle bearing from drum support.
25. Remove direct clutch assembly from reverse brake.
26. Remove snap ring from A/T assembly harness connector.
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Revision: December 20092009 QX56

TM-238
< DISASSEMBLY AND ASSEMBLY >
DISASSEMBLY
27. Push A/T assembly harness connector.CAUTION:
Do not damage connector.
28. Remove oil pan and oil pan gasket. Refer to TM-201, "Oil Pan"
.
29. Check foreign materials in oil pan to help determine causes of malfunction. If the A/T fluid is very dark, smells burned, or con-
tains foreign particles, the frictional material (clutches, band)
may need replacement. A tacky film that will not wipe clean indi-
cates varnish build up. Varnish can cause valves, servo, and
clutches to stick and can inhibit pump pressure.
 If frictional material is de tected, perform A/T fluid cooler
cleaning. Refer to TM-183, "A/T Fluid Cooler Cleaning"
.
30. Remove magnets from oil pan.
31. Disconnect A/T fluid temperat ure sensor 2 connector (A).
CAUTION:
Do not damage connector.
32. Straighten terminal clip to free terminal cord assembly and A/ T fluid temperature sensor 2 harness.
33. Disconnect output sensor connector. CAUTION:
Do not damage connector.
34. Straighten terminal clip to free output sensor harness.
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Revision: December 20092009 QX56

REPAIR FOR COMPONENT PARTSTM-251
< DISASSEMBLY AND ASSEMBLY >
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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 TM-220, "Compo-
nent".
Front Sun Gear, 3rd One-Way ClutchINFOID:0000000004187491
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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Revision: December 20092009 QX56

TM-252
< DISASSEMBLY AND ASSEMBLY >
REPAIR FOR COMPONENT PARTS
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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Revision: December 20092009 QX56

REPAIR FOR COMPONENT PARTSTM-253
< DISASSEMBLY AND ASSEMBLY >
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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 installati on direction of 3rd one-way
clutch.
Front Carrier, Input Clut ch, Rear Internal GearINFOID:0000000004187492
COMPONENTS
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Revision: December 20092009 QX56

TM-254
< DISASSEMBLY AND ASSEMBLY >
REPAIR FOR COMPONENT PARTS
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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Revision: December 20092009 QX56

REPAIR FOR COMPONENT PARTSTM-255
< DISASSEMBLY AND ASSEMBLY >
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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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Revision: December 20092009 QX56