INFINITI QX56 2011 Factory Service Manual

FRONT CARRIER, INPUT CLUTCH, REAR INTERNAL GEARTM-283
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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DisassemblyINFOID:0000000006226929
1. Remove needle bearing (1) from front carrier assembly.
2. Compress snap ring (1) using flat-bladed screwdrivers (A).
CAUTION:
 Be careful not to scratch rear internal gear.
 Be careful not to damage snap ring.
3. Remove front carrier assembly and input clutch assembly from rear internal gear.
4. Remove front carrier assembly from input clutch assembly.
5.6. Remove snap ring (1) from front carrier assembly. CAUTION:
Be careful not to expand snap ring excessively.
7. Remove O-ring (1) and seal rings (2) from input clutch assem- bly.
JPDIA1120ZZ
JPDIA1123ZZ
JPDIA1159ZZ
JPDIA1124ZZ
Revision: 2010 May2011 QX56

TM-284
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
FRONT CARRIER, INPUT CLUT
CH, REAR INTERNAL GEAR
8. Remove needle bearing from input clutch assembly.
9. Remove snap ring from input clutch drum using a flat-bladed
screwdriver.
CAUTION:
 Be careful not to scratch rear input clutch drum and input
clutch retaining plate.
 Be careful not to damage snap ring.
10. Remove input clutch drive plates , input clutch driven plates, and
input clutch retaining plate from input clutch drum.
AssemblyINFOID:0000000006226930
1. Install input clutch drive plates , input clutch driven plates, and
input clutch retaining plate in input clutch drum.
CAUTION:
Check order of plates.
2. Install snap ring in input clutch drum using a flat-bladed screw- driver.
CAUTION:
 Be careful not to scratch input clutch drum and inputclutch retaining plate.
 Be careful not to damage snap ring.
SCIA2853E
SCIA2864E
1: Snap ring
2 : Retaining plate
3 : Drive plate (seven pieces)
4 : Driven plate (seven pieces)
JPDIA1125ZZ
SCIA2864E
Revision: 2010 May2011 QX56

FRONT CARRIER, INPUT CLUTCH, REAR INTERNAL GEARTM-285
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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3. Install needle bearing in input clutch assembly. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
4. Install O-ring (1) and seal rings (2) in input clutch assembly.
5. Install snap ring (1) to front carrier assembly. CAUTION:
Be careful not to expand snap ring excessively.
6. Compress snap ring (1) using flat-bladed screwdrivers (A).
CAUTION:
 Be careful not to scratch rear internal gear.
 Be careful not to damage snap ring.
7. Install front carrier assembly and input clutch assembly to rear internal gear.
8. Install needle bearing (1) to front carrier assembly. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
SCIA2853E
JPDIA1124ZZ
JPDIA1159ZZ
JPDIA1123ZZ
JPDIA1120ZZ
Revision: 2010 May2011 QX56

TM-286
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
FRONT CARRIER, INPUT CLUT
CH, REAR INTERNAL GEAR
Inspection
INFOID:0000000006226931
INSPECTION AFTER REMOVAL
Front Carrier Snap Ring
Check for deformation, fatigue or damage. If necessary, replace the snap ring.
Input Clutch Snap Ring
Check for deformation, fatigue or damage. If necessary, replace input clutch assembly.
Input Clutch Drum
Check for deformation, fatigue or damage or burns. If necessary, replace input clutch assembly.
Input Clutch Drive Plates
Check facing for burns, cracks or damage. If necessary, replace input clutch assembly.
Input Clutch Retaining Plate and Driven Plates
Check facing for burns, cracks or damage. If necessary, replace input clutch assembly.
Front Carrier
Check for deformation, fatigue or damage. If necessary, replace front carrier assembly.
Rear Internal Gear
Check for deformation, fatigue or damage. If necessary, replace rear internal gear.
Revision: 2010 May2011 QX56

MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH HUB
TM-287
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH
HUB
Exploded ViewINFOID:0000000006226932
DisassemblyINFOID:0000000006226933
1. Remove needle bearing and bearing races from high and low reverse clutch hub.
2. Remove snap ring from mid sun gear assembly using pair of snap ring pliers.
CAUTION:
Be careful not to expand snap ring excessively.
1. Mid sun gear 2. Seal ring 3. Rear sun gear
4. 2nd one-way clutch 5. Snap ring 6. Needle bearing
7. High and low reverse clutch hub 8. Snap ring 9. Bearing race
10. Bearing race 11. Needle bearing
Refer to GI-4, "
Components" for symbols in the figure.
JSDIA1758ZZ
SCIA5238E
SCIA2855E
Revision: 2010 May2011 QX56

TM-288
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
MID SUN GEAR, REAR SUN GEAR,
HIGH AND LOW REVERSE CLUTCH HUB
3. Remove high and low reverse clutch hub from mid sun gear
assembly.
4. Remove needle bearing from high and low reverse clutch hub.
5. Remove rear sun gear assembly from mid sun gear assembly.
6. Remove snap ring from rear sun gear using a flat-bladed screw- driver.
CAUTION:
 Be careful not to scratch rear sun gear and 2nd one-wayclutch.
 Be careful not to damage snap ring.
7. Remove 2nd one-way clutch from rear sun gear.
SCIA2856E
SCIA2857E
SCIA7018E
SCIA2859E
JSDIA1817ZZ
Revision: 2010 May2011 QX56

MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH HUB
TM-289
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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8. Remove seal rings from mid sun gear.
AssemblyINFOID:0000000006226934
1. Install seal rings to mid sun gear.
2. Install 2nd one-way clutch to rear sun gear.
3. Install snap ring to rear sun gear using a flat-bladed screwdriver. CAUTION:
 Be careful not to scratch rear sun gear and 2nd one-way
clutch.
 Be careful not to damage snap ring.
SCIA2861E
SCIA2861E
JSDIA1817ZZ
SCIA2859E
Revision: 2010 May2011 QX56

TM-290
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
MID SUN GEAR, REAR SUN GEAR,
HIGH AND LOW REVERSE CLUTCH HUB
4. Install rear sun gear assembly to mid sun gear assembly.
5. Install needle bearing to high and low reverse clutch hub.
CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
6. Install high and low reverse clutch hub to mid sun gear assem- bly.
7. Install snap ring to mid sun gear assembly using pair of snap ring pliers.
CAUTION:
Be careful not to exp and snap ring excessively.
8. Check operation of 2nd one-way clutch.
SCIA7018E
SCIA2857E
SCIA2856E
SCIA2855E
Revision: 2010 May2011 QX56

MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH HUB
TM-291
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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a. Hold mid sun gear and turn rear sun gear.
b. Check 2nd one-way clutch for correct locking and unlocking directions.
CAUTION:
If not as shown in the figure, check installation direction of
2nd one-way clutch.
9. Install needle bearing and bearing races to high and low reverse clutch hub.
CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
InspectionINFOID:0000000006226935
INSPECTION AFTER REMOVAL
2nd One-way Clutch
1. Hold mid sun gear and turn rear sun gear.
2. Check 2nd one-way clutch for correct locking and unlocking
directions. If necessary, replace 2nd one-way clutch.
High and Low Reverse Clutch Hub Snap Ring, Rear Sun Gear Snap Ring
Check for deformation, fatigue or damage. If necessary, replace the snap ring.
2nd One-way Clutch
Check frictional surface for wear or damage. If necessary, replace the 2nd one-way clutch.
Mid Sun Gear
Check for deformation, fatigue or damage. If necessary, replace the mid sun gear.
Rear Sun Gear
Check for deformation, fatigue or damage. If necessary, replace the rear sun gear.
High and Low Reverse Clutch Hub
Check for deformation, fatigue or damage. If nece ssary, replace the high and low reverse clutch hub.
SCIA3132E
SCIA5238E
SCIA3132E
Revision: 2010 May2011 QX56

TM-292
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
HIGH AND LOW REVERSE CLUTCH
HIGH AND LOW REVERSE CLUTCH
Exploded ViewINFOID:0000000006226936
DisassemblyINFOID:0000000006226937
1. Remove bearing race from high and low reverse clutch drum.
2. Remove snap ring from high and low reverse clutch drum using
a flat-bladed screwdriver.
CAUTION:
 Be careful not to scratch high and low reverse clutchdrum.
 Be careful not to damage snap ring.
3. Remove drive plates, driven plates and retaining plate from high and low reverse clutch drum.
1. High and low reverse clutch drum 2. High and low reverse clutch driven
plate3. High and low reverse clutch retaining
plate
4. Snap ring 5. High and low reverse clutch drive plate6. Bearing race
SCIA5239E
SCIA5215E
SCIA2868E
Revision: 2010 May2011 QX56