INFINITI QX56 2011 Factory Service Manual

FRONT PROPELLER SHAFTDLN-129
< REMOVAL AND INSTALLATION > [FRONT PROPELLER SHAFT: 2F P15]
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Removal and InstallationINFOID:0000000006222357
REMOVAL
1. Shift the transmission to the neutral pos ition, and then release the parking brake.
2. Remove protector A and B with power tool. Refer to SCS-39, "
PPMU, MIDDLE TUBE ASSEMBLY, PPMU
PIPE : Removal and Installation".
3. Remove rear engine mount cross member with a power tool. Refer to TM-208, "
4WD : Removal and
Installation".
4. Put matching mark (A) on front propeller shaft flange yoke and final drive companion flange.
CAUTION:
For matching mark, use paint. Never damage propeller shaft
flange and final drive companion flange.
5. Put matching mark (A) on front propeller shaft flange yoke and transfer companion flange.
CAUTION:
For matching mark, use paint. Never damage propeller shaft
flange and transfer companion flange.
6. Remove the propeller shaft assembly fixing bolts.
7. Remove propeller shaft assembly from the front final drive and transfer.
8. Perform inspection after removal. Refer to DLN-131, "
Inspection".
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 front 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:0000000006222358
DISASSEMBLY
JPDID0207ZZ
JPDID0207ZZ
PDIA0423E
Revision: 2010 May2011 QX56

DLN-130
< REMOVAL AND INSTALLATION >[FRONT PROPELLER SHAFT: 2F P15]
FRONT PROPELLER SHAFT
1. Put a matching mark (A) between propeller shaft and flange
yoke and remove snap rings (1).
CAUTION:
For matching mark, use paint. Never damage the surface.
2. 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. Install journal to propeller shaft so that grease nipple (1) on jour- nal portion is in the same direction.
CAUTION:
Never reuse journal.
4. Measure journal axial play. If necessary, select the appropriate snap ring.
JPDID0375ZZ
PDA0034D
JSDIA0370ZZ
JPDID0327ZZ
Revision: 2010 May2011 QX56

FRONT PROPELLER SHAFTDLN-131
< REMOVAL AND INSTALLATION > [FRONT PROPELLER SHAFT: 2F P15]
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a. While pushing to 98 N·m (10 kg-m, 72 ft-lb), check the clearance between snap ring (1) and flange yoke (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 0.06 mm.
5. Install selected snap ring as shown in the figure.
6. Check that joint moves smoothly.
NOTE:
The bending resistance [1.96 N.m (0.20 kg-m, 17 in-lb) or less]
may not be satisfied soon after the installation.
7. Check the journal axial play. Refer to DLN-131, "
Inspection".
InspectionINFOID:0000000006222359
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-127, "
Inspection".
Journal Axial Play
Journal axial play : Refer to DLN-133,
"Journal Axial Play"
JPDID0373ZZ
PDA0035D
Reference value (After adaptation)
Bending resistance : 1.96 N·m (0.20 kg-m, 17 in-lb)
or less
SDIA0856J
Propeller shaft runout : Refer to DLN-133,
"Propeller Shaft
Runout"
JSDIA0083ZZ
Revision: 2010 May2011 QX56

DLN-132
< REMOVAL AND INSTALLATION >[FRONT PROPELLER SHAFT: 2F P15]
FRONT PROPELLER SHAFT
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.
Journal axial play : Refer to DLN-133,
"Journal Axial Play"
PDA0005D
Revision: 2010 May2011 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)
DLN-133
< SERVICE DATA AND SPECIFICATIONS (SDS) [FRONT PROPELLER SHAFT: 2F P15]
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000006222360
Propeller Shaft RunoutINFOID:0000000006222361
Unit: mm (in)
Journal Axial PlayINFOID:0000000006222362
Unit: mm (in)
Applied model 4WD
VK56VD A/T
Propeller shaft model 2F P15
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) 729 mm (28.70 in)
Shaft outer diameter 68.9 mm (2.713 in)
Item Limit
Propeller shaft runout 1.0 (0.04)
Item Standard
Journal axial play 0.06 (0.0024)
Revision: 2010 May2011 QX56

DLN-134
< SYMPTOM DIAGNOSIS >[REAR PROPELLER SHAFT: 2F P26]
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000006222363
Use the chart below to help you find the cause of the symptom. If necessa ry, repair or replace these parts.
×: ApplicableReference
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 FAX, RAX, FSU and RSU section.
NVH in WT section.
NVH in WT section.
NVH in FAX and RAX section.
NVH in BR section.
NVH in ST section.
Possible cause an d 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

REAR PROPELLER SHAFTDLN-135
< PERIODIC MAINTENANCE > [REAR PROPELLER SHAFT: 2F P26]
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PERIODIC MAINTENANCE
REAR PROPELLER SHAFT
InspectionINFOID:0000000006222364
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 spec ifications, replace propeller shaft assembly.
4. Check the vibration by driving vehicle.
RUNOUT MEASURING POINT
Propeller shaft runout measuring point (Point “ ”).
: Vehicle front
Propeller shaft runout : Refer to DLN-147, "Pro-
peller Shaft Runout".LDIA0161E
: Vehicle front
Dimension
A : 120 – 150 mm (4.72 – 5.91 in)
B : 150 – 180 mm (5.91 – 7.09 in)
C : 703.5 mm (27.70 in)
JPDID0320ZZ
Revision: 2010 May2011 QX56

DLN-136
< REMOVAL AND INSTALLATION >[REAR PROPELLER SHAFT: 2F P26]
REAR PROPELLER SHAFT
REMOVAL AND INSTALLATION
REAR PROPELLER SHAFT
Exploded ViewINFOID:0000000006222365
REMOVAL
DISASSEMBLY
1. Propeller shaft assembly
: Vehicle front
Refer to GI-4, "
Components" for symbols not described above.
JPDID0322GB
1. Flange yoke 2. Snap ring*3. Bearing*
4. Journal*5. Propeller shaft
*: Replace “2”, “3” and “4” as a set.
: Vehicle front
Refer to GI-4, "
Components" for symbols not described above.
JPDID0324ZZ
Revision: 2010 May2011 QX56

REAR PROPELLER SHAFTDLN-137
< REMOVAL AND INSTALLATION > [REAR PROPELLER SHAFT: 2F P26]
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Removal and InstallationINFOID:0000000006222366
REMOVAL
1. Shift the transmission to the neutral pos ition, 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. Put matching mark (A) on rear propeller shaft flange yoke and transfer companion flange.
CAUTION:
For matching mark, use paint. Never damage propeller shaft
flange and transfer companion flange.
4. Remove the propeller shaft assembly fixing bolts.
5. Remove propeller shaft assembly from the rear final drive and transfer.
6. Perform inspection after removal. Refer to DLN-146, "
Inspection".
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:0000000006222367
DISASSEMBLY
JPDID0207ZZ
JPDID0207ZZ
PDIA0423E
Revision: 2010 May2011 QX56

DLN-138
< REMOVAL AND INSTALLATION >[REAR PROPELLER SHAFT: 2F P26]
REAR PROPELLER SHAFT
1. Put a matching mark between propeller shaft and flange yoke
and remove snap rings (1).
CAUTION:
For matching mark, use paint. Never damage the surface.
2. Lightly tap bottom of yoke using a copper hammer and remove journal bearing.
CAUTION:
Never damage the yoke.
3. Remove grease nipple.
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. Install journal to propeller shaft so that grease nipple (1) on jour- nal portion is in the same direction.
CAUTION:
Never reuse journal.
JSDIA0369ZZ
PDA0034D
JSDIA0370ZZ
JPDID0327ZZ
Revision: 2010 May2011 QX56