INFINITI QX56 2010 Factory Service Manual

SERVICE DATA AND SPECIFICATIONS (SDS)DLN-179
< SERVICE DATA AND SPECIFICATIONS (SDS) [ATX14B]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000005148896
Inspection and AdjustmentINFOID:0000000005148897
CLEARANCE BETWEEN INNER GEAR AND OUTER GEAR
Unit: mm (in)
CLUTCH
Unit: mm (in)
PINION GEAR END PLAY
Unit: mm (in)
CLEARANCE BETWEEN SHIFT FORK AND SLEEVE
Unit: mm (in)
SELECTIVE PARTS
Sub-oil Pump
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information. Applied model
4WD
VK56DE A/T
Transfer model AT X 1 4 B
Fluid capacity (Approx.) (US qt, lmp qt) 3.0 (3-1/8, 2-5/8)
Gear ratio High
1.000
Low 2.625
Number of teeth Planetary
gear
Sun gear
57
Internal gear 91
Front drive sprocket 38
Front drive shaft 38
ItemSpecification
Sub-oil pump 0.015 - 0.035 (0.0006 - 0.0014)
Main oil pump 0.015 - 0.035 (0.0006 - 0.0014)
ItemLimit value
Drive plate 1.4 (0.055)
ItemStandard
Pinion gear end play 0.1 - 0.7 (0.004 - 0.028)
ItemStandard
Shift fork and sleeve Less than 0.36 (0.0142)
Gear thicknessPart number*
Inner gear Outer gear
9.27 - 9.28 (0.3650 - 0.3654) 31346 0W46231347 0W462
9.28 - 9.29 (0.3654 - 0.3657) 31346 0W46131347 0W461
9.29 - 9.30 (0.3657 - 0.3661) 31346 0W46031347 0W460
Revision: April 20092010 QX56

DLN-180
< SERVICE DATA AND SPECIFICATIONS (SDS) [ATX14B]
SERVICE DATA AND SPECIFICATIONS (SDS)
Main Oil Pump
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Control Valve
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Control Valve Spring
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Return Spring
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.Gear thickness
Part number*
Inner gear Outer gear
8.27 - 8.28 (0.3256 - 0.3260) 31346 7S11231347 7S112
8.28 - 8.29 (0.3260 - 0.3264) 31346 7S11131347 7S111
8.29 - 8.30 (0.3264 - 0.3268) 31346 7S11031347 7S110
Mounting position
(Part name) Part number*
Outer dia.Overall length
L1
(2-4 shift valve) 31772 21X00
8.0 (0.315)38.5 (1.516)
L2
(Clutch valve) 31772 80X11
10.0 (0.394)40.0 (1.575)
L4
(Pilot valve) 31772 80X11
10.0 (0.394)40.0 (1.575)
L5
(Regulator valve) 31741 0W410
12.0 (0.472)68.0 (2.677)
Mounting position
(Part name) Part number* Free length Outer dia. Overall length
L1
(2-4 shift valve spring) 31742 2W500 31.85 (1.2539) 7.0 (0.276) 0.6 (0.024)
L2
(Clutch valve spring) 31742 2W505 40.6 (1.598) 8.9 (0.350) 0.7 (0.028)
L4
(Pilot valve spring) 31742 0W410 28.1 (1.106) 9.0 (0.354) 1.2 (0.047)
L5
(Regulator valve spring) 31742 2W515 39.7 (1.563) 11.0 (0.433) 1.3 (0.051)
Stamped mark
Part number*Free length
1 31521 7S11142.7 (1.168)
2 31521 7S11243.1 (1.697)
3 31521 7S11343.6 (1.717)
4 31521 7S11444.0 (1.731)
Revision: April 20092010 QX56

PRECAUTIONSDLN-181
< PRECAUTION > [PROPELLER SHAFT: 2F1310]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005335152
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000005335151
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: April 20092010 QX56

DLN-182
< PRECAUTION >[PROPELLER SHAFT: 2F1310]
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Revision: April 20092010 QX56

PREPARATIONDLN-183
< PREPARATION > [PROPELLER SHAFT: 2F1310]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
PREPARATION
PREPARATION
Commercial Service ToolINFOID:0000000005148898
Tool name Description
Power tool Loosening bolts and nuts
PBIC0190E
Revision: April 20092010 QX56

DLN-184
< SYMPTOM DIAGNOSIS >[PROPELLER SHAFT: 2F1310]
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000005148899
Use the chart below to help you find the cause of the sy mptom. If necessary, repair or replace these parts.
×: ApplicableReference page
DLN-185, "
On-Vehicle Service
"
DLN-185, "
On-Vehicle Service
"
DLN-185, "
On-Vehicle Service
"
DLN-208, "
NVH Troubleshooting Chart
"
RAX-5, "
NVH Troubleshooting Chart
"
RSU-5, "
NVH Troubleshooting Chart
"
WT-43, "
NVH Troubleshooting Chart
"
WT-43, "
NVH Troubleshooting Chart
"
RAX-10, "
Removal and Installation
"
BR-6, "
NVH Troubleshooting Chart
"
ST-12, "
NVH Troubleshooting Chart
"
Possible cause and suspected parts
Uneven rotation torque
Rotation imbalance
Excessive run out
Differential
Axle
Suspension
Tires
Road wheel
Drive shaft
Brakes
Steering
Symptom Noise
×××××××××××
Shake ×××××××
Vibration ××××××××
Revision: April 20092010 QX56

PROPELLER SHAFTDLN-185
< ON-VEHICLE REPAIR > [PROPELLER SHAFT: 2F1310]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
ON-VEHICLE REPAIR
PROPELLER SHAFT
On-Vehicle ServiceINFOID:0000000005148900
APPEARANCE AND NOISE INSPECTION
• Check the propeller shaft tube surface for dents or crac ks. If damaged, replace the propeller shaft assembly.
• Check the bearings for noise and damage. Repair or replace the bearings as necessary.
PROPELLER SHAFT VIBRATION
If a vibration is present at high speed, inspect the propeller shaft runout first.
1. Measure the runout of the propeller shaft tube at several points by rotating the final drive companion
flange with your hands.
2. If the runout exceeds specif ications, disconnect the propeller
shaft at the final drive companion flange; then rotate the com-
panion flange 90 °, 180 ° and 270 ° and reconnect the propeller
shaft.
3. Check the runout again. If the r unout still exceeds specifications,
replace the propeller shaft assembly.
4. After installation, check for vibration by driving the vehicle. Limit
Propeller shaft run out : Refer to
DLN-190, "
Gen-
eral Specification"
LDIA0160E
Revision: April 20092010 QX56

DLN-186
< REMOVAL AND INSTALLATION >[PROPELLER SHAFT: 2F1310]
PROPELLER SHAFT
REMOVAL AND INSTALLATION
PROPELLER SHAFT
Removal and InstallationINFOID:0000000005148901
Model 2F1310
REMOVAL
1. Put matching marks on the front propeller shaft flange yoke and
the front final drive companion flange as shown.
CAUTION:
For matching marks, use paint. Never damage the flange
yoke and companion flange of the front final drive.
2. Put matching marks on the front propeller shaft flange yoke and the transfer companion flange.
CAUTION:
For matching marks, use paint. Never damage the flange
yoke and companion flange of the front final drive.
3. Remove the bolts and then remove the front propeller shaft from the front final drive and transfer.
INSPECTION
1. Propeller shaft tube 2. Snap ring 3. Journal bearing
4. Journal 5. Flange yoke Front
WDIA0304E
SDIA2046E
Revision: April 20092010 QX56

PROPELLER SHAFTDLN-187
< REMOVAL AND INSTALLATION > [PROPELLER SHAFT: 2F1310]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
• Inspect the propeller shaft runout. If runout exceeds the limit, replace the propeller shaft assembly.
• While holding the flange yoke on one side, check axial play of the joint as shown. If the journal axial play
exceeds the specification, repair or replace the journal parts.
• Check the propeller shaft tube surf ace for dents or cracks. If dam-
age is detected, replace the propeller shaft assembly.
INSTALLATION
Installation is in the reverse order of removal.
• After installation, check for vibration by driving the vehicle. Refer to DLN-184, "
NVH Troubleshooting Chart".
CAUTION:
Do not reuse the bolts and nuts. Always install new ones.
Limit
Propeller shaft run out : Refer to
DLN-190, "
Gen-
eral Specification"
LDIA0118E
Standard
Journal axial play : Refer to DLN-190, "
Gen-
eral Specification"
LDIA0117E
Revision: April 20092010 QX56

DLN-188
< DISASSEMBLY AND ASSEMBLY >[PROPELLER SHAFT: 2F1310]
PROPELLER SHAFT
DISASSEMBLY AND ASSEMBLY
PROPELLER SHAFT
Disassembly and AssemblyINFOID:0000000005148902
DISASSEMBLY
Journal
1. Put matching marks on the front propeller shaft and flange yoke
as shown.
CAUTION:
For matching marks, use paint. Never damage the front pro-
peller shaft or flange yoke.
2. Remove the snap rings.
3. Push out and remove the journal bearings by lightly tapping the flange yoke with a hammer, taking care not to damage the jour-
nal or flange yoke hole.
NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
4. Push out and remove the remaining journal bearings at the opposite side by lightly tapping the flange yoke with a hammer,
taking care not to damage the journal or flange yoke hole.
NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
ASSEMBLY
SPD128
APD011
SPD732
SPD131
Revision: April 20092010 QX56