INFINITI QX56 2006 Factory Service Manual

AT-286
REPAIR FOR COMPONENT PARTS
Revision: November 20092006 QX56
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 GearECS00EOE
COMPONENTS
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DISASSEMBLY
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.
1. Seal ring 2. O-ring3. Needle bearing
4. Bearing race 5. Front carrier assembly6. Needle bearing
7. Snap ring 8. Snap ring9. Retaining plate
10. Driven plate 11. Input clutch drum12. Drive plate
13. Rear internal gear
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AT-288
REPAIR FOR COMPONENT PARTS
Revision: November 20092006 QX56
4. Disassemble input clutch assembly.
a. Remove O-ring and seal rings from input clutch assembly.
b. Remove needle bearing from input clutch assembly.
c. Remove snap ring from input clutch drum using suitable tool.
d. Remove drive plates, driven plates and retaining plate from input
clutch drum.
INSPECTION
Front Carrier Snap Ring

Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the snap ring.
Input Clutch Snap Ring

Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the input clutch assembly.
Input Clutch Drum

Check for deformation, fatigue or damage or burns.
CAUTION:
If necessary, replace the input clutch assembly.
Input Clutch Drive Plates

Check facing for burns, cracks or damage.
CAUTION:
If necessary, replace the input clutch assembly.
Input Clutch Retaining Plate and Driven Plates

Check facing for burns, cracks or damage.
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CAUTION:
If necessary, replace the input clutch assembly.
Front Carrier Assembly

Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the front carrier assembly.
Rear Internal Gear

Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the rear internal gear.
ASSEMBLY
1. Install input clutch.
a. Install drive plates, driven plates and retaining plate in input
clutch drum.
CAUTION:
Take care with order of plates.
b. Install snap ring in input clutch drum using suitable tool.
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AT-290
REPAIR FOR COMPONENT PARTS
Revision: November 20092006 QX56
c. Install needle bearing in input clutch assembly.
CAUTION:
Apply petroleum jelly to needle bearing.
d. Install new O-ring and new seal rings in input clutch assembly. CAUTION:

Do not reuse O-ring and seal rings.

Apply ATF to O-ring.

Apply petroleum jelly to seal rings.
2. Install front carrier assembly.
a. Install snap ring to front carrier assembly. CAUTION:
Do not expand snap ring excessively.
b. Install needle bearing in front carrier assembly. CAUTION:

Take care with the direction of needle bearing. Refer to
AT- 2 6 0 , "
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings" .

Apply petroleum jelly to needle bearing.
c. Install bearing race in front carrier assembly. CAUTION:
Apply petroleum jelly to bearing race.
d. Install front carrier assembly to input clutch assembly.
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Revision: November 2009 2006 QX56
3. Compress snap ring using suitable tool.
4. Install front carrier assembly and input clutch assembly to rear
internal gear.
Mid Sun Gear, Rear Sun Gear, High and Low Reverse Clutch HubECS00EOF
COMPONENTS
DISASSEMBLY
1. Remove needle bearing and bearing races from high and lowreverse clutch hub.
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1. Needle bearing 2. Bearing race3. Snap ring
4. High and low reverse clutch hub 5. Needle bearing 6. Snap ring
7. 1st one-way clutch 8. Rear sun gear9. Seal ring
10. Mid sun gear
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AT-292
REPAIR FOR COMPONENT PARTS
Revision: November 20092006 QX56
2. Remove snap ring from mid sun gear assembly using suitable
tool.
CAUTION:
Do not expand snap ring excessively.
3. Remove high and low reverse clutch hub from mid sun gear assembly.
a. Remove needle bearing from high and low reverse clutch hub.
4. Remove rear sun gear assembly from mid sun gear assembly.
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a. Remove snap ring from rear sun gear using suitable tool.
b. Remove 1st one-way clutch from rear sun gear.
5. Remove seal rings from mid sun gear.
INSPECTION
High and Low Reverse Clutch Hub Snap Ring, Rear Sun Gear Snap Ring

Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the snap ring.
1st One-way Clutch

Check frictional surface for wear or damage.
CAUTION:
If necessary, replace the 1st one-way clutch.
Mid Sun Gear

Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the mid sun gear.
Rear Sun Gear

Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the rear sun gear.
High and Low Reverse Clutch Hub

Check for deformation, fatigue or damage.
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AT-294
REPAIR FOR COMPONENT PARTS
Revision: November 20092006 QX56
CAUTION:
If necessary, replace the high and low reverse clutch hub.
ASSEMBLY
1. Install new seal rings to mid sun gear.
CAUTION:

Do not reuse seal rings.

Apply petroleum jelly to seal rings.
2. Install 1st one-way clutch to rear sun gear. CAUTION:
Apply petroleum jelly to 1st one-way clutch.
3. Install snap ring to rear sun gear using suitable tool.
4. Install rear sun gear assembly to mid sun gear assembly.
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5. Install needle bearing to high and low reverse clutch hub.
CAUTION:

Take care with the direction of needle bearing. Refer to
AT- 2 6 0 , "
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings" .

Apply petroleum jelly to needle bearing.
6. Install high and low reverse clutch hub to mid sun gear assem- bly.
7. Install snap ring to mid sun gear assembly using suitable tool. CAUTION:
Do not expand snap ring excessively.
8. Check operation of 1st one-way clutch.
a. Hold mid sun gear and turn rear sun gear.
b. Check 1st one-way clutch for correct locking and unlocking directions.
CAUTION:
If not as shown, check installation direction of 1st one-way
clutch.
9. Install needle bearing and bearing races to high and low reverse clutch hub.
CAUTION:

Apply petroleum jelly to needle bearing and bearing
races.

Take care with order of bearing races.
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