2011 INFINITI QX56 boot

FRONT WHEEL HUB AND KNUCKLEFAX-19
< REMOVAL AND INSTALLATION > [4WD]
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7. Set suitable jack under lower link.
8. Remove shock absorber mounting bolt from lower link. Refer to FSU-10, "
Removal and Installation".
9. Separate upper link from steering knuckle, using the ball joint remover (commercial service tool), and
remove upper link.
CAUTION:
 Temporarily tighten the nut to prevent damage to threads and to prevent the ball joint remover
from suddenly coming off.
 Never damage ball joint boot.
10. Remove cotter pin, and then loosen wheel hub lock nut.
11. Put matching mark on drive shaft and wheel hub and bearing assembly. CAUTION:
Use paint or similar substance for matc hing marks. Never scratch the surface.
12. Patch wheel hub lock nut with a piece of wood. Hammer the wood to disengage wheel hub and bearing assembly from drive shaft.
CAUTION:
 Never place drive shaft joint at an extreme angle. Also be careful not to overextend slide joint.
 Never allow drive shaft to hang down without support for or joint sub-assembly, shaft and the
other parts.
NOTE:
Use suitable puller, if wheel hub and bearing assembly and drive shaft cannot be separated even after
performing the above procedure.
13. Remove wheel hub lock nut.
14. Remove wheel hub and bearing assembly, and then remove splash guard.
15. Remove lower link from steering knuckle. CAUTION:
Never damage ball joint boot.
16. Remove steering knuckle.
17. Remove hub bolts (1) from wheel hub and bearing assembly, using the ball joint remover (A) (commercial service tool).
CAUTION:
 Remove hub bolt only when necessary.
 Never hammer the hub bolt to avoid impact to the wheel
hub and bearing assembly.
 Pull out the hub bolt in a di rection perpendicular to the
wheel hub and bearing assembly.
18. Perform inspection after removal. Refer to FAX-20, "
Inspection".
INSTALLATION
Note the following, and install in the reverse order of removal.
 Place a suitable washer (A) as shown in the figure to install the hub
bolts (1) by using the tightening force of the nut (B).
CAUTION:
 Check that there is no cl earance between wheel hub and
bearing assembly, and hub bolt.
 Never reuse hub bolt.
 Use the following torque range for tightening the wheel hub lock nut.
CAUTION:
 Since the drive shaft is assembled by press-fitting , use the tightening torque range for the wheel
hub lock nut.
 Be sure to use torque wrench to tighten th e wheel hub lock nut. Never use a power tool.
 Perform the final tightening of each of parts under unladen conditions, which were removed when removing
wheel hub and bearing assembly and steering knuckle.
JPDIF0299ZZ
: 118 – 123 N·m (12.1 – 12.5 kg-m, 87 – 90 ft-lb)
JPDIF0300ZZ
Revision: 2010 May2011 QX56

FAX-20
< REMOVAL AND INSTALLATION >[4WD]
FRONT WHEEL HUB AND KNUCKLE
 Never reuse cotter pin.
 Perform inspection after installation. Refer to
FAX-20, "
Inspection".
InspectionINFOID:0000000006225398
INSPECTION AFTER REMOVAL
Check components for deformation, cracks, and other damage. Replace it if necessary.
Ball Joint Inspection
Check boots of lower link and steering outer socket ball joint for breakage, axial play, and torque. Refer to
FSU-15, "
Inspection" and ST-46, "Inspection".
INSPECTION AFTER INSTALLATION
1. Check wheel sensor harness for proper connection. Refer to BRC-134, "FRONT WHEEL SENSOR :
Exploded View".
2. Check the wheel alignment. Refer to FSU-7, "
Inspection".
3. Adjust neutral position of steering angle sensor. Refer to BRC-64, "
Work Procedure".
Revision: 2010 May2011 QX56

FRONT DRIVE SHAFT BOOTFAX-21
< REMOVAL AND INSTALLATION > [4WD]
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FRONT DRIVE SHAFT BOOT
Exploded ViewINFOID:0000000006225399
Removal and InstallationINFOID:0000000006225400
NOTE:
Remove boot after drive shaft is removed from the vehicle.
 Remove and install drive shaft. Refer to FAX-22, "
Removal and Installation".
 Disassembly and assembly drive shaft. Refer to FAX-23, "
WHEEL SIDE : Disassembly and Assembly"
(wheel side) or FAX-26, "FINAL DRIVE SIDE : Disassembly and Assembly" (final drive side).
InspectionINFOID:0000000006225401
INSPECTION AFTER REMOVAL
 Move joint up/down, left/right, and in the axial directi ons. Check for motion that is not smooth and for signifi-
cant looseness.
 Check boot for cracks, damage, and leakage of grease.
 Disassemble drive shaft and exchange malfunctioning part if there is a non-standard condition.
1. Circular clip 2. Dust shield 3. Housing
4. Snap ring 5. Ball cage/steel ball/inner race assem-
bly6. Stopper ring
7. Boot band 8. Boot 9. Shaft
10. Circular clip 11. Joint sub-assembly : Wheel side
: NISSAN genuine grease or an equivalent.
Refer to GI-4, "
Components" for symbols not described on the above.
JPDIF0279ZZ
SDIA1163J
Revision: 2010 May2011 QX56

FAX-22
< REMOVAL AND INSTALLATION >[4WD]
FRONT DRIVE SHAFT
FRONT DRIVE SHAFT
Exploded ViewINFOID:0000000006225402
Removal and InstallationINFOID:0000000006225403
REMOVAL
1. Remove tires.
2. Remove brake hose bracket. Refer to
BR-23, "
FRONT : Removal and Installation".
3. Remove caliper assembly mounting bolts. Hang caliper assembly in a place where it will not interfere with work. Refer to BR-37, "
BRAKE CALIPER ASSEMBLY : Removal and Installation".
CAUTION:
Never depress brake pedal while brake caliper is removed.
4. Remove disc rotor. Refer to FAX-18, "
Removal and Installation".
5. Remove wheel sensor harness. Refer to BRC-134, "
FRONT WHEEL SENSOR : Removal and Installa-
tion".
CAUTION:
Never pull on wheel sensor harness.
6. Remove height sensor from upper link (right side). Refer to EXL-136, "
Removal and Installation".
7. Remove steering outer socket. Refer to ST-42, "
Removal and Installation".
8. Set suitable jack under lower link.
9. Remove shock absorber mounting bolt from lower link. Refer to FSU-10, "
Removal and Installation".
10. Separate upper link from steering knuckle, using t he ball joint remover (commercial service tool), and
remove upper link.
CAUTION:
 Temporarily tighten the nut to prevent damage to threads and to prevent the ball joint remover
from suddenly coming off.
1. Circular clip 2. Dust shield 3. Housing
4. Snap ring 5. Ball cage/steel ball/inner race assem-
bly6. Stopper ring
7. Boot band 8. Boot 9. Shaft
10. Circular clip 11. Joint sub-assembly : Wheel side
: NISSAN genuine grease or an equivalent.
Refer to GI-4, "
Components" for symbols not described on the above.
JPDIF0279ZZ
Revision: 2010 May2011 QX56

FRONT DRIVE SHAFTFAX-23
< REMOVAL AND INSTALLATION > [4WD]
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 Never damage ball joint boot.
11. Remove cotter pin, and then loosen wheel hub lock nut.
12. Patch wheel hub lock nut with a piece of wood. Hammer the wood to disengage wheel hub and bearing assembly from drive shaft.
CAUTION:
 Never place drive shaft joint at an extreme angle. Also be careful not to overextend slide joint.
 Never allow drive shaft to hang down without support for or joint sub-assembly, shaft and the
other parts.
NOTE:
Use suitable puller, if wheel hub and bearing assembly and drive shaft cannot be separated even after
performing the above procedure.
13. Remove wheel hub lock nut.
14. Remove fender protector. Refer to EXT-23, "
FENDER PROTECTOR : Removal and Installation".
15. Remove drive shaft from front final drive using the drive shaft attachment [SST: KV40107500 ( −)] (A) and a sliding ham-
mer (commercial service tool) (B) while inserting tip of the drive
shaft attachment between housing and front final drive.
CAUTION:
 Never place drive shaft joint at an extreme angle when
removing drive shaft. Also be careful not to overextend
slide joint.
 Confirm that the circular clip is attached to the drive shaft.
16. Perform inspection after removal. Refer to FAX-28, "
Inspection".
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Always replace final drive side oil seal with new one when installing drive shaft. Refer to DLN-160,
"Removal and Installation"
 Place the protector [SST: KV38106300 (−)] (A) onto final drive
to prevent damage to the oil seal while inserting drive shaft. Slide
drive shaft sliding joint and tap with a hammer to install securely.
CAUTION:
Check that circular clip is completely engaged.
 Use the following torque range for tightening the wheel hub lock nut.
CAUTION:
 Since the drive shaft is assembled by press-fitting, use the tightening torque range for the wheel hub lock nut.
 Be sure to use torque wrench to tighten th e wheel hub lock nut. Never use a power tool.
 Perform the final tightening of each of parts under unladen conditions, which were removed when removing
wheel hub and bearing assembly and steering knuckle.
 Never reuse cotter pin.
 Perform inspection after installation. Refer to FAX-28, "
Inspection".
WHEEL SIDE
WHEEL SIDE : Disassembly and AssemblyINFOID:0000000006225404
DISASSEMBLY
1. Fix shaft with a vise.
CAUTION:
Protect shaft when fixing with a vi se using aluminum or copper plates.
2. Remove dust shield from joint sub-assembly.
3. Remove boot bands and then remove boot from joint sub-assembly.
JPDIF0004ZZ
: 118 – 123 N·m (12.1 – 12.5 kg-m, 87 – 90 ft-lb)
JPDIF0023ZZ
Revision: 2010 May2011 QX56

FAX-24
< REMOVAL AND INSTALLATION >[4WD]
FRONT DRIVE SHAFT
4. Screw the drive shaft puller (commercial service tool) (A) 30 mm
(1.18 in) or more into the thread of joint sub-assembly, and pull
joint sub-assembly from shaft.
CAUTION:
 If joint sub-assembly cannot be removed after five ormore unsuccessful attempts, replace shaft and joint sub
assembly as a set.
 Align drive shaft puller an d drive shaft and remove them
by pulling directory.
5. Remove circular clip from shaft.
6. Remove boot from shaft.
7. Perform inspection after disassembly. Refer to FAX-28, "
Inspec-
tion".
ASSEMBLY
1. While rotating ball cage, clean old grease on joint sub-assembly with paper waste.
2. Fill serration slot joint sub-assembly (1) with NISSAN genuine
grease or equivalent until the serration slot and ball groove
become full to the brim.
CAUTION:
After applying grease, use a sh op cloth to wipe off old
grease that has oozed out.
3. Install boot and boot bands to shaft. CAUTION:
 Wrap serration on shaft with tape (A) to protect the boot
from damage.
 Never reuse boot and boot band.
4. Remove the tape wrapped around the serration on shaft.
5. Position circular clip on groove at the shaft edge. CAUTION:
Never reuse circular clip.
NOTE:
Drive joint inserter is recommended when installing circular clip.
6. Align both center axles of the shaft edge and joint sub-assembly. Then assemble shaft with joint sub-assembly holding circular clip.
7. Install joint sub-assembly to shaft using plastic hammer. CAUTION:
Confirm that joint sub-assembly is correctly engaged while
rotating drive shaft.
8. Apply the specified amount of grease into the boot inside from large diameter side of boot.
JPDIG0151ZZ
JPDIF0008ZZ
Grease amount : Refer to FAX-29, "Drive Shaft".
JPDIF0009ZZ
RAC0049D
Revision: 2010 May2011 QX56

FRONT DRIVE SHAFTFAX-25
< REMOVAL AND INSTALLATION > [4WD]
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9. Install the boot securely into grooves (indicated by “*” marks) shown in the figure.
CAUTION:
If grease adheres to the boot mounting surface (indicated
by “*” mark) on the shaft or housing, boot may come off.
Remove all grease from the surfaces.
10. To prevent the deformation of the boot, adjust the boot installa- tion length (L) to the specified value shown below by inserting
the suitable tool into inside of the boot from the large diameter
side of boot and discharging the inside air.
CAUTION:
 If the boot installation length is outsid e the standard, it may cause breakage of boot.
 Be careful not to touch the inside of the boot with the tip of tool.
11. Install new boot bands securely. CAUTION:
Never reuse boot band.
a. Small boot band
i. Secure the ends of the boot with boot bands using the boot band crimping tool [SST: KV40107300 ( −)] (A).
CAUTION:
Secure boot band so that dimension (M) meets the specifi-
cation as shown in the figure.
b. Large boot band
i. Put boot band in the groove on drive shaft boot. Then fit pawls ( ) into holes to temporary installation.
NOTE:
For the large diameter side, fit projection (A) and guide slit (B) at
first.L : Refer to
FAX-29, "
Drive Shaft".
JPDIG0136ZZ
PDIA1187J
M : 1.0 – 4.0 mm (0.039 – 0.157 in)
DSF0047D
SDIA3557E
Revision: 2010 May2011 QX56

FAX-26
< REMOVAL AND INSTALLATION >[4WD]
FRONT DRIVE SHAFT
ii. Pinch projection on the band with suitable pliers to tighten band.
iii. Insert tip of band below end of the pawl.
12. Secure joint sub-assembly and shaft, and then check that they
are in the correct position when rotating boot. Install them with
boot band when boot installation positions become incorrect.
CAUTION:
Never reuse boot band.
13. Install dust shield to joint sub-assembly. CAUTION:
Never reuse dust shield.
FINAL DRIVE SIDE
FINAL DRIVE SIDE : Disa ssembly and AssemblyINFOID:0000000006225405
DISASSEMBLY
1. Fix shaft with a vise.
CAUTION:
Protect shaft when fixing with a vi se using aluminum or copper plates.
2. Remove circular clip from housing.
3. Remove dust shield from housing.
4. Remove boot bands, and then remove boot from housing.
5. Put matching marks on housing and shaft. CAUTION:
Use paint or similar substance for matc hing marks. Never scratch the surface.
6. Remove stopper ring with suitable tool, and pull out housing.
7. Put matching marks on ball cage/steel ball/inner race assembly and shaft.
CAUTION:
Use paint or similar substance for matching marks. Never
scratch the surface.
8. Remove snap ring, then remove ball cage/steel ball/inner race assembly from shaft.
9. Remove boot from shaft.
10. Perform inspection after disassembly. Refer to FAX-28, "
Inspec-
tion".
ASSEMBLY
1. Remove old grease on housing with paper waste.
SDIA3558E
JPDIG0177ZZ
SFA514A
Revision: 2010 May2011 QX56