2011 INFINITI QX56 torque

TM-264
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
60. Install converter housing to transmission case, and tighten con-
verter housing bolts ( ) to the specified torque.
61. Connect TCM connector (A).
62. Install joint connector (1) to the control valve & TCM. CAUTION:
Apply ATF to O-ring of joint connector.
63. Install the control valve & TCM (1) to transmission case.
CAUTION:
JPDIA1107ZZ
JSDIA1813ZZ
JSDIA1719ZZ
JSDIA1823ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-265
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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 Make sure that input speed sen sor securely installs input
speed sensor holes (A).
 Hang down output speed sensor harness toward outside
so as not to disturb installa tion of the control valve &
TCM.
 Adjust A/T assembly harness connector of the control
valve & TCM to terminal ho le of transmission case.
 Assemble it so that manual valve cutout is engaged with manual plate projection.
64. Install bolts and clip (1) to the control valve & TCM. Tighten bolt (E) to the specified torque before tightening the other than bolts.
*: Reamer bolt
65. Connect output speed sensor connector (A).
66. Engage output speed sensor harness with terminal clips ( ).
JPDIA1106ZZ
SCIA5035E
: Front
Bolt symbol Length mm (in) Number of bolts A 43 (1.69) 3
B 40 (1.57) 2
C 54 (2.13) 6
D 50 (1.97) 2
E* 50 (1.97) 1
JPDIA1105ZZ
JPDIA1104ZZ
Revision: 2010 May2011 QX56

TM-266
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
67. Pull down joint connector (1).
CAUTION:
Be careful not to damage connector.
68. Install snap ring (1) to joint connector (2).
69. Install magnets (1) in oil pan.
70. Install oil pan gasket to transmission case. CAUTION:
 Never reuse oil pan gasket.
 Install it in the direction to align hole positions.
 Completely remove all moisture, oil and old gasket, etc.from oil pan gasket mounting surface.
71. Install oil pan (2) and clips (1) to transmission case. CAUTION:
 Be careful not to pinch harnesses.
 Completely remove all moisture, oil and old gasket, etc.from oil pan mounting surface.
72. Tighten oil pan mounting bolts to the specified torque in numeri- cal order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque.
CAUTION:
Never reuse oil pan mounting bolts.
73. Install drain plug to oil pan. Tighten drain plug to the specified torque.
CAUTION:
Never reuse drain plug gasket.
JSDIA1764ZZ
JSDIA1765ZZ
JPDIA0009ZZ
: Front
: Oil pan mounting bolt
JSDIA1591ZZ
: Front
JSDIA1592GB
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-275
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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3. Using the drift, install oil pump housing oil seal to the oil pump housing until it is flush.
CAUTION:
 Never reuse oil seal.
 Apply ATF to oil seal.
4. Install oil pump housing to oil pump cover and tighten bolts ( ) to the specified torque in numerical order shown in the figure
after temporarily tightening them.
5. Install D-ring (large) (1) and D-ring (small) (2) to 2346 brake pis- ton.
6. Install 2346 brake piston (1) to oil pump assembly.
7. Install D-ring (inner) (1) and D-ring (outer) (2) to front brake pis- ton.
SCIA5313E
JPDIA1101ZZ
JPDIA1100ZZ
JSDIA1722ZZ
JPDIA1098ZZ
Revision: 2010 May2011 QX56

TM-296
< SERVICE DATA AND SPECIFICATIONS (SDS) [7AT: RE7R01B]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000006226944
*1: Refer to
MA-10, "Fluids and Lubricants".
*2: The fluid capacity is the reference value.
Vehicle Speed at Which Gear Shifting OccursINFOID:0000000006226945
NORMAL MODE
Unit: km/h (MPH)
 At half throttle, the accelerator opening is 4/8 of the full opening.
TOW MODE
Applied model 2WD 4WD
Transmission model code number 1XR1E 1XR1D
Stall torque ratio 1.93 : 1
Transmission gear ratio 1st 4.887
2nd 3.170
3rd 2.027
4th 1.412
5th 1.000
6th 0.864
7th 0.775
Reverse 4.041
Recommended fluid Genuine NISSAN Matic S ATF
*1
Fluid capacity10.0 liter (10-5/8 US qt, 8-3/4 Imp qt)*2
CAUTION:
 Use only Genuine NISSAN Matic S ATF. Never mix with other ATF.
 Using ATF other than Genuine NISSAN Matic S ATF will cause deterioration driveability and A/T durability, and may damage
the A/T, which is not covered by the INFINITI new vehicle limited warranty.
Gear position Throttle position
Full throttle Half throttle
D
1 → D256 – 60 (35 – 37) 42 – 46 (26 – 29)
D
2 → D389 – 97 (55 – 60) 73 – 81 (45 – 50)
D
3 → D4141 – 151 (88 – 94) 112 – 122 (70 – 76)
D
4 → D5205 – 215 (127 – 134) 134 – 144 (83 – 89)
D
5 → D6250 – 260 (155 – 162) 173 – 183 (108 – 114)
D
6 → D7250 – 260 (155 – 162) 206 – 216 (128 – 134)
D
7 → D6240 – 250 (149 – 155) 161 – 171 (100 – 106)
D
6 → D5240 – 250 (149 – 155) 130 – 140 (81 – 87)
D
5 → D4180 – 190 (112 – 118) 84 – 94 (52 – 58)
D
4 → D3126 – 136 (78 – 85) 58 – 68 (36 – 42)
D
3 → D266 – 74 (41 – 46) 30 – 38 (19 – 24)
D
2 → D123 – 27 (14 – 17) 10 – 14 (6 – 9)
Revision: 2010 May2011 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)
TM-297
< SERVICE DATA AND SPECIFICATIONS (SDS) [7AT: RE7R01B]
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Unit: km/h (MPH)
 At half throttle, the accelerator opening is 4/8 of the full opening.
 The vehicle speed included in the above table is a speed with the tow mode ON and a heavy load towed.
Vehicle Speed at Which Lock-up Occurs/ReleasesINFOID:0000000006226946
 Vehicle speed with D5 position.
 At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal OFF)
 At half throttle, the accelerator opening is 4/8 of the full opening.
Stall SpeedINFOID:0000000006226947
2WD MODELS
4WD MODELS
*: Refer to DLN-18, "4WD SYSTEM : System Description".
Torque ConverterINFOID:0000000006226948
Gear position Throttle position
Full throttle Half throttle
D
1 → D257 – 61 (35 – 38) 50 – 54 (31 – 34)
D
2 → D389 – 97 (55 – 60) 76 – 84 (47 – 52)
D
3 → D4141 – 151 (88 – 94) 116 – 126 (72 – 78)
D
4 → D5205 – 215 (127 – 134) 159 – 169 (99 – 105)
D
5 → D6251 – 261 (156 – 162) 189 – 199 (117 – 124)
D
6 → D7251 – 261 (156 – 162) 215 – 225 (134 – 140)
D
7 → D6240 – 250 (149 – 155) 161 – 171 (100 – 106)
D
6 → D5240 – 250 (149 – 155) 130 – 140 (81 – 87)
D
5 → D4180 – 190 (112 – 118) 84 – 94 (52 – 58)
D
4 → D3126 – 136 (78 – 85) 58 – 68 (36 – 42)
D
3 → D266 – 74 (41 – 46) 30 – 38 (19 – 24)
D
2 → D124 – 28 (15 – 17) 10 – 14 (6 – 9)
Throttle position Vehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
Closed throttle 50 – 58 (31 – 36) 50 – 58 (31 – 36)
Half throttle 163 – 171 (101 – 106) 163 – 171 (101 – 106)
Sta ll sp ee d 1,777 – 2,077 rpm
4WD shift switch* AUTO, 4H 4L
Stall speed 1,777 – 2,077 rpm 1,540 – 1,840 rpm
Dimension between end of converter housing and torque converter 24.0 mm (0.94 in)
Revision: 2010 May2011 QX56