2011 INFINITI QX56 clutch

TRANSMISSION ASSEMBLYTM-253
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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28. Install direct clutch assembly in reverse brake. CAUTION:
Make sure that drum support edge surface and direct clutch
inner boss edge surface come to almost same place.
29. Install high and low reverse clutch assembly in direct clutch.
30. Align the drive plate using a flat-bladed screwdriver.
31. Install high and low reverse clutch hub, mid sun gear assembly, and rear sun gear assembly as a unit.
CAUTION:
SCIA5019E
SCIA2306E
SCIA3169E
SCIA5018E
Revision: 2010 May2011 QX56

TM-254
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
Make sure that portion “A” of
high and low reverse clutch
drum protrudes approximately 2 mm (0.08 in) beyond por-
tion “B” of rear sun gear.
32. Install needle bearing in rear carrier assembly. CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
33. Install bearing race in rear carrier assembly. CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
34. Install rear carrier assembly in direct clutch drum.
35. Install needle bearing (rear side) to mid carrier assembly. CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
SCIA3130E
SCIA2803E
SCIA5175E
SCIA2462E
SCIA2804E
Revision: 2010 May2011 QX56

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
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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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
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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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
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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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