clutch INFINITI QX56 2011 Factory Service Manual

TRANSMISSION ASSEMBLYTM-255
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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36. Install needle bearing (front side) to mid carrier assembly. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
37. Install mid carrier assembly in rear carrier assembly.
38. Install seal rings (1) to input clutch assembly.
39. 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".
SCIA2805E
SCIA5017E
JPDIA1121ZZ
JPDIA1120ZZ
Revision: 2010 May2011 QX56

TM-256
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
40. Install input clutch assembly (with front carrier assembly and
rear internal gear) (1) to transmission case.
CAUTION:
Check that the needle bearing (2) is securely positioned. If
the needle bearing position is misaligned, adjust it to the
specified position.
41. Install 1st one-way clutch (1) to front brake hub (with under drive carrier) (2).
42. Check operation of 1st one-way clutch.
a. Hold 1st one-way clutch.
b. Check front brake hub for correct locking and unlocking direc- tions.
CAUTION:
If not shown in figure, check installati on direction of 1st one-way clutch.
43. Install under drive carrier (with 1st one-way clutch) (1) to trans- mission case.
JSDIA1714ZZ
: Unlocked
: Locked
JSDIA1713ZZ
JSDIA1715ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-263
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55. Install under drive sun gear (with needle bearing) (1) to oil pump assembly (2).
56. Install oil pump assembly (with under drive sun gear) to trans- mission case.
CAUTION:
Apply ATF to oil pump bearing.
57. Apply recommended sealant to oil pump assembly as shown in the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc.
from the oil pump mounting bolts and oil pump mounting
bolt mounting surfaces.
58. Tighten oil pump bolts ( ) to the specified torque. CAUTION:
Apply ATF to oil pump bushing.
59. Install O-ring to input clutch assembly.
JSDIA1712ZZ
SCIA2811E
: Genuine RTV silicone sealant or equivalent. Refer to
GI-22, "
Recommended Chemical Products and Seal-
ants".
JSDIA1720ZZ
JPDIA1108ZZ
SCIA5011E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-267
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74. Pour ATF into torque converter. Approximately 2 liter (2-1/8 US qt, 1-3/4 Imp qt) of ATF is
required for a new torque converter.
 When reusing old torque co nverter, add the same amount
of ATF as was drained.
75. Install torque converter while aligning notches of torque con- verter with notches of oil pump.
CAUTION:
Install torque converte r while rotating it.
76. Measure dimension “A” to make sure that torque converter is in proper position.
InspectionINFOID:0000000006226919
INSPECTION AFTER REMOVAL
Oil Pan
Check foreign materials in oil pan to help determine causes of mal-
function. If the ATF is very dark, smells burned, or contains foreign
particles, the frictional material (clutches, band) may need replace-
ment. A tacky film that will not wipe clean indicates varnish build up.
Varnish can cause valves, servo, and clutches to stick and can
inhibit pump pressure.
If frictional material is detected, perform A/T fluid cooler
cleaning. Refer to TM-97, "
Cleaning".
Torque Converter
SAT428DA
SCIA5010E
B: Scale
C : Straightedge
Dimension “A” : Refer to TM-297, "Torque Converter".
JPDIA0042ZZ
SCIA5199E
Revision: 2010 May2011 QX56

TM-268
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
Check torque converter one-way clutch using a check tool as shown
at figure.
1. Insert a check tool into the groove of bearing support built into
one-way clutch outer race.
2. When fixing bearing support with a check tool, rotate one-way clutch spline using a screwdriver.
3. Make sure that inner race rotates clockwise only. If not, replace
torque converter assembly.
1st One-way Clutch
Check operation of 1st one-way clutch.
1. Install 1st one-way clutch (1) to front brake hub (with under drivecarrier).
2. Hold 1st one-way clutch.
3. Check front brake hub for correct locking and unlocking direc- tions. If necessary, replace 1st one-way clutch.
Under Drive Sun Gear
Check for deformation, fatigue or damage. If necessary, replace the under drive sun gear.
Mid Carrier Assembly
Check for deformation, fatigue or damage. If necessary, replace the mid carrier assembly.
Rear Carrier Assembly
Check for deformation, fatigue or damage. If necessary, replace the rear carrier assembly.
Reverse Brake Drive Plates
Check facing for burns, cracks or damage. If necessary, replace the plate.
Reverse Brake Retaining Plate, Driven Plates and Dish Plates
Check facing for burns, cracks or damage. If necessary, replace the plate.
Each Snap Ring
Check for deformation, fatigue or damage. If necessary, replace the snap ring.
Parking Actuator Support and Parking Pawl
SCIA3171E
: Unlocked
: Locked
JSDIA1713ZZ
Revision: 2010 May2011 QX56

OIL PUMP, 2346 BRAKE, FRONT BRAKE PISTONTM-271
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2. Remove 2346 brake component part (retaining plate, drive plate, driven plate, and dish pl ate) (1) from oil pump assembly.
3. Remove seal ring (1) from oil pump assembly.
4. Set the clutch spring compressor (SST: KV31103800) (A) on front brake spring retainer and remove snap ring (fixing front
brake spring retainer) (1) from oil pump assembly while com-
pressing return spring.
CAUTION:
Be careful not to expand snap ring excessively.
5. Remove front brake spring retainer (1) from oil pump assembly.
6. Set the clutch spring compressor [SST: KV31102400 (J-34285 and J-34285-87)] (A) on 2346 brake spring retainer and remove
snap ring (fixing 2346 brake spring retainer) (1) from oil pump
assembly while compressing return spring.
CAUTION:
Be careful not to expand snap ring excessively.
JPDIA1091ZZ
JPDIA1092ZZ
JSDIA1729ZZ
JPDIA1094ZZ
B: Press
JSDIA1730ZZ
Revision: 2010 May2011 QX56

TM-276
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
OIL PUMP, 2346 BRAKE, FRONT BRAKE PISTON
8. Install front brake piston (1) to oil pump assembly.
9. Install 2346 brake spring retainer (1) to oil pump assembly.
10. Set the clutch spring compressor [SST: KV31102400 (J-34285
and J-34285-87)] (A) on 2346 brake spring retainer and install
snap ring (fixing 2346 brake spring retainer) (1) to oil pump
assembly while compressing return spring.
CAUTION:
Be careful not to exp and snap ring excessively.
11. Install front brake spring retainer (1) to oil pump assembly.
12. Set the clutch spring compressor (SST: KV31103800) (A) on front brake spring retainer and install snap ring (fixing front
brake spring retainer) (1) to oil pump assembly while compress-
ing return spring.
CAUTION:
Be careful not to exp and snap ring excessively.
JSDIA1723ZZ
JPDIA1096ZZ
B: Press
JSDIA1730ZZ
JPDIA1094ZZ
JSDIA1729ZZ
Revision: 2010 May2011 QX56

TM-282
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
FRONT CARRIER, INPUT CLUT
CH, REAR INTERNAL GEAR
FRONT CARRIER, INPUT CLUTCH, REAR INTERNAL GEAR
Exploded ViewINFOID:0000000006226928
1. Needle bearing 2. Snap ring 3. Front carrier assembly
4. Needle bearing 5. O-ring 6. Seal ring
7. Input clutch drum 8. Input clutch driven plate 9. Input clutch drive plate
10. Input clutch retaining plate 11. Snap ring 12. Rear internal gear
Refer to GI-4, "
Components" for symbols in the figure.
JPDIA1122GB
Revision: 2010 May2011 QX56

FRONT CARRIER, INPUT CLUTCH, REAR INTERNAL GEARTM-283
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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