INFINITI QX56 2011 Factory Service Manual

REAR PROPELLER SHAFTDLN-139
< REMOVAL AND INSTALLATION > [REAR PROPELLER SHAFT: 2F P26]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
4. Install snap ring (1).
5. Check that joint moves smoothly.
NOTE:
The bending resistance [2.26 N.m (0.23 kg-m, 20 in-lb) or less]
may not be satisfied soon after the installation.
6. Check the journal axial play. Refer to DLN-146, "
Inspection".
InspectionINFOID:0000000006222368
INSPECTION AFTER REMOVAL
Appearance
Check the propeller shaft for dents or cracks. If damage is detected, replace the propeller shaft assembly.
Propeller Shaft Runout
Check propeller shaft runout at measuring point with a dial indicator.
If runout exceeds specifications, replace propeller shaft assembly.
For measuring point, refer to DLN-142, "
Inspection".
Journal Axial Play
As shown in the figure, while fixing yoke on one side, check axial
play of joint. If axial play exceeds specifications, replace propeller
shaft assembly.
JPDID0374ZZ
Reference value (After adaptation)
Bending resistance : 2.26 N·m (0.23 kg-m, 20 in-lb)
or less
SDIA0856J
Propeller shaft runout : Refer to DLN-147,
"Propeller Shaft
Runout"
JSDIA0083ZZ
Journal axial play : Refer to DLN-147,
"Journal Axial Play"
PDA0005D
Revision: 2010 May2011 QX56

DLN-140
< SERVICE DATA AND SPECIFICATIONS (SDS) [REAR PROPELLER SHAFT: 2F P26]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000006222369
Propeller Shaft RunoutINFOID:0000000006222370
Unit: mm (in)
Journal Axial PlayINFOID:0000000006222371
Unit: mm (in)
Applied model 4WD
VK56VD A/T
Propeller shaft model 2F P26
Number of joints 2
Type of journal bearings 1st joint Shell type
2rd joint Shell type
Coupling method with transfer Flange type
Coupling method with rear final drive Flange type
Shaft length (Spider to spider) 1168mm (45.98 in)
Shaft outer diameter 101.6 mm (4.00 in)
Item Limit
Propeller shaft runout 1.0 (0.04)
Item Standard
Journal axial play 0 (0)
Revision: 2010 May2011 QX56

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGDLN-141
< SYMPTOM DIAGNOSIS > [REAR PROPELLER SHAFT: 2S1410]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
SYMPTOM DIAGNOSIS
NOISE, VIBRATION, AND HARSHNESS (N VH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000006222436
Use the chart below to help you find the cause of t he symptom. If necessary, repair or replace these parts.
×: Applicable
Reference
DLN-142, "
Inspection
"—
—
—
—
DLN-142, "
Inspection
"
DLN-142, "
Inspection
"
NVH of FRONT FINAL DRI VE in this section.
NVH of REAR FINAL DRI VE in this section.
NVH in RAX and RSU section.
NVH in WT section.
NVH in WT section.
NVH in RAX section.
NVH in BR section.
NVH in ST section.
Possible cause and SUSPECTED PARTS
Uneven rotating torque
Center bearing improper installation
Excessive center bearing axial end play
Center bearing mounting (insulator) cracks, damage or deterioration
Excessive joint angle
Rotation imbalance
Excessive runout
DIFFERENTIAL
AXLE AND SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom Noise
××××××××××××××
Shake × × ××××××
Vibration ××××××× ×× × ×
Revision: 2010 May2011 QX56

DLN-142
< PERIODIC MAINTENANCE >[REAR PROPELLER SHAFT: 2S1410]
REAR PROPELLER SHAFT
PERIODIC MAINTENANCE
REAR PROPELLER SHAFT
InspectionINFOID:0000000006222437
NOISE
Check the propeller shaft tube surface for dents or cr
acks. If damaged, replace propeller shaft assembly.
VIBRATION
If vibration is present at high speed, inspect propeller shaft runout
first.
1. With a dial indicator, measure propeller shaft runout at runout
measuring points by rotating final drive companion flange with
hands.
2. If runout still exceeds specifications, separate propeller shaft at final drive companion flange; then rotate companion flange 90,
180, 270 degrees and install propeller shaft.
3. Check runout again. If runout still exceeds specifications, replace propeller shaft assembly.
4. Check the vibration by driving vehicle.
RUNOUT MEASURING POINT
Propeller shaft runout measuring range. Propeller shaft runout : Refer to
DLN-147, "
Pro-
peller Shaft Runout".
SDIA1781E
: Vehicle front
LDIA0121E
Revision: 2010 May2011 QX56

REAR PROPELLER SHAFTDLN-143
< REMOVAL AND INSTALLATION > [REAR PROPELLER SHAFT: 2S1410]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
REMOVAL AND INSTALLATION
REAR PROPELLER SHAFT
Exploded ViewINFOID:0000000006222438
REMOVAL
DISASSEMBLY
1. Propeller shaft assembly : Vehicle front
Refer to GI-4, "
Components" for symbols not described above.
JPDID0400GB
1. Flange yoke 2. Snap ring 3. Bearing
4. Journal 5. Propeller shaft 6. Sleeve yoke
: Vehicle front
Refer to GI-4, "
Components" for symbols not described above.
JPDID0401ZZ
Revision: 2010 May2011 QX56

DLN-144
< REMOVAL AND INSTALLATION >[REAR PROPELLER SHAFT: 2S1410]
REAR PROPELLER SHAFT
Removal and Installation
INFOID:0000000006222439
REMOVAL
1. Shift the transmission to the neutral posit ion, and then release the parking brake.
2. Put matching mark (A) on rear propeller shaft flange yoke and rear drive companion flange.
CAUTION:
For matching mark, use paint. Never damage propeller shaft
flange and final drive companion flange.
3. Remove the propeller shaft assembly fixing bolts.
4. Remove propeller shaft assembly from the rear final drive and transfer.
5. Perform inspection after removal. Refer to DLN-146, "
Inspec-
tion".
INSTALLATION
Note the following, and install in the reverse order of removal.
 Align matching mark (A) to install propeller shaft flange yoke and
transfer companion flange.
 Align matching mark (A) to install propeller shaft flange yoke and
rear final drive companion flange.
 After assembly, perform a driving test to check propeller shaft vibration. If vibration occurred, separate propeller shaft from final
drive. Reinstall companion flange after rotating it by 90, 180, 270
degrees. Then perform driving test and check propeller shaft vibra-
tion again at each point.
 If propeller shaft or final drive has been replaced, connect them as follows:
- Install the propeller shaft while aligning its matching mark (A) with
the matching mark (B) on the joint as close as possible.
Disassembly and AssemblyINFOID:0000000006222440
DISASSEMBLY
1. Put a matching mark between propeller shaft and flange yoke as shown.
CAUTION:
For matching mark, use paint. Never damage the surface.
JPDID0207ZZ
JPDID0207ZZ
PDIA0423E
SPD128
Revision: 2010 May2011 QX56

REAR PROPELLER SHAFTDLN-145
< REMOVAL AND INSTALLATION > [REAR PROPELLER SHAFT: 2S1410]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
2. Remove snap ring.
3. Lightly tap bottom of yoke using a copper hammer and remove journal bearing.
CAUTION:
Never damage the yoke.
ASSEMBLY
1. Install journal bearing to journal.CAUTION:
 Never reuse journal or journal bearing.
 Always replace journal, journal b earing, and snap rings as a set.
 Apply multi-purpose grease to journal bearing.
2. Install bearing (1) using a vise. CAUTION:
Never damage bearing or flange yoke.
3. Measure journal axial play. If necessary, select the appropriate snap ring.
a. While pushing to 98 N·m (10 kg-m, 72 ft-lb), check the clearance between snap ring (1) and needle bearing (2).
b. If journal axial play is outside the specification, use a thicker/ thinner snap ring to adjust.
CAUTION:
 Never reuse snap ring.
 Select snap rings so that thickness difference between LH
and RH is within 0.02 mm (0.0008 in).
APD011
PDA0034D
JSDIA0370ZZ
Journal axial play : Refer to DLN-147,
"Journal Axial Play"
JPDID0331ZZ
Revision: 2010 May2011 QX56

DLN-146
< REMOVAL AND INSTALLATION >[REAR PROPELLER SHAFT: 2S1410]
REAR PROPELLER SHAFT
4. Install snap ring (1).
5. Check that joint moves smoothly.
NOTE:
The bending resistance [2.26 N.m (0.23 kg-m, 20 in-lb) or less]
may not be satisfied soon after the installation.
6. Check the journal axial play. Refer to DLN-146, "
Inspection".
InspectionINFOID:0000000006222441
INSPECTION AFTER REMOVAL
Appearance
Check the propeller shaft for dents or cracks. If damage is detected, replace the propeller shaft assembly.
Propeller Shaft Runout
Check propeller shaft runout at measuring point with a dial indicator.
If runout exceeds specifications, replace propeller shaft assembly.
For measuring point, refer to DLN-142, "
Inspection".
Journal Axial Play
As shown in the figure, while fixing yoke on one side, check axial
play of joint. If axial play exc eeds specifications, replace propeller
shaft assembly.
APD012
Reference value (After adaptation)
Bending resistance : 2.26 N·m (0.23 kg-m, 20 in-lb)
or less
SDIA0856J
Propeller shaft runout : Refer to DLN-147,
"Propeller Shaft
Runout"
JSDIA0083ZZ
Journal axial play : Refer to DLN-147,
"Journal Axial Play"
PDA0005D
Revision: 2010 May2011 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)
DLN-147
< SERVICE DATA AND SPECIFICATIONS (SDS) [REAR PROPELLER SHAFT: 2S1410]
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:0000000006222442
Propeller Shaft RunoutINFOID:0000000006222443
Unit: mm (in)
Journal Axial PlayINFOID:0000000006222444
Unit: mm (in)
Applied model 2WD
VK56VD A/T
Propeller shaft model 2S1410
Number of joints 2
Type of journal bearings 1st joint Shell type
2rd joint Shell type
Coupling method with transfer Sleeve type
Coupling method with rear final drive Flange type
Shaft length (Spider to spider) 1590.4 mm (62.61 in)
Shaft outer diameter 127.6 mm (5.02 in)
Item Limit
Propeller shaft runout 1.02 (0.0402)
Item Standard
Journal axial play 0.02 (0.0008)
Revision: 2010 May2011 QX56

DLN-148
< PRECAUTION >[FRONT FINAL DRIVE: R180A]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution Necessary for Steering W
heel Rotation after Battery Disconnect
INFOID:0000000006222372
NOTE:
 Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect bot h battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the bat tery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wi ll remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect bot h battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button igniti on switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-III.
Precaution for Servicing Front Final DriveINFOID:0000000006222373
 Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic
operations.
 Check for the correct installation status prior to re moval or disassembly. When matching marks are required,
be certain they do not interfere with the f unction of the parts they are applied to.
 Overhaul should be done in a clean work area, a dust proof area is recommended.
 Before disassembly, completely remove sand and mud from the exterior of the unit, preventing them from
entering into the unit during disassembly or assembly.
 Always use shop paper for cleaning the inside of components.
 Avoid using cotton gloves or a shop cloth to prevent the entering of lint.
 Check appearance of the disassembled parts for dam age, deformation, and abnormal wear. Replace them
with new ones if necessary.
 Gaskets, seals and O-rings should be replaced any time the unit is disassembled.
 Clean and flush the parts sufficiently and blow them dry.
 Be careful not to damage sliding surfaces and mating surfaces.
 When applying sealant, remove the old sealant from the mating surface; then remove any moisture, oil, and
foreign materials from the application and mating surfaces.
 In principle, tighten nuts or bolts gradually in severa l steps working diagonally from inside to outside. If a
tightening sequence is specified, observe it.
 During assembly, observe the specified tightening torque.
 Add new differential gear oil, petroleum jelly, or multi-purpose grease, as specified.
Revision: 2010 May2011 QX56