2008 INFINITI QX56 boot

REAR DRIVE SHAFTRAX-15
< DISASSEMBLY AND ASSEMBLY >
CEF
G H
I
J
K L
M A
B
RAX
N
O P
4. Attach the circlip to the shaft. The circlip must fit securely into
the shaft groove. Attach the nut to the joint sub-assembly.
Use a soft hammer to press-fit the circlip.
NOTE:
Discard the old circlip and use a new one for assembly.
5. Insert the specified quantity of Genuine NISSAN Grease or equivalent, into the housing from the large end of the boot. Refer
to MA-12, "
Fluids and Lubricants".
6. Install the boot securely into the grooves (indicated by the * marks) as shown.
CAUTION:
If there is grease on the bo ot mounting surfaces (indicated
by the * marks) of the shaft and housing, the boot may
come off. Remove all grease from the shaft surfaces.
7. Check that the boot installation length “L” is the specified length. Insert a flat-bladed screwdriver or similar tool into the smaller
side of the boot. Bleed the air from the boot to prevent boot
deformation.
CAUTION:
• The boot may break if the boot installation length is less than the specified length.
• Do not contact inside surface of boot with the tip of the screwdriver.
8. Secure the big and small ends of the boot using new boot bands using Tool as shown.
NOTE:
Discard the old boot bands and use new ones for assembly.
• Secure boot band so that dimension "M" meets specification as shown.
9. After installing the joint sub-assembly and shaft, rota te the boot to check that it is positioned correctly. If
the boot is not positioned correctly, reposition the boot and secure the boot using a new boot band.
Grease capacity : 140
− 160 g (4.93 − 5.64 oz)
RAC0049D
Boot installation length “L” : 134.5 mm (5.30 in)
WDIA0046E
RAC1133D
Dimension "M" : 1.0 - 4.0 (0.039 - 0.157)
DSF0047D
Revision: March 2010 2008 QX56

RAX-16
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel BearingINFOID:0000000004886838
Drive ShaftINFOID:0000000004886839
Boot BandsINFOID:0000000004886840
Unit: mm (in)
Axial end play0 mm (0 in)
JointWheel sideFinal drive side
Grease capacity 140
− 160 g
(4.93 − 5.64 oz) 175
− 195 g
(6.17 − 6.88 oz)
Boot installed length 134.5 mm (5.30 in)147.9 mm (5.82 in)
Dimension "M" 1.0 - 4.0 (0.039 - 0.157)
DSF0047D
Revision: March 2010 2008 QX56

SHOCK ABSORBERRSU-15
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
RSU
N
O P
SHOCK ABSORBER
Removal and InstallationINFOID:0000000004900758
REMOVAL
1. Remove the wheel and tire assembly using power tool. Refer to WT-48, "Rotation".
2. Use CONSULT-III “EXHAUST SOLENOID ” active test to release the air pressure from the rear load level-
ing air suspension system.
3. Remove the four clips and remove the rear fender protector, front.
4. Disconnect the rear load leveling air suspension hose from the shock absorber.
• To disconnect the hose, push in on the lock ring using a suit-
able tool and pull the air hose out.
5. Remove the shock absorber upper and lower end bolts using power tool.
6. Remove the shock absorber. CAUTION:
Do not damage the rubber boot on the shock absorber.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten the shock absorber bolts to specification. Refer to RSU-9, "
Component".
INSPECTION AFTER INSTALLATION
• Check the shock absorber for any air leaks or damage to the rubber boot.
• Check the shock absorber for smooth operation through a full stroke, both compression and extension.
• Check piston rod for cracks, deformation or other damage and replace if necessary.
LEIA0081E
LEIA0082E
Revision: March 2010 2008 QX56

ST-6
< PREPARATION >
PREPARATION
Commercial Service Tool
INFOID:0000000004920095
KV40107300
(—) Crimping boot bands
—
(J-44372)
Spring gauge Measuring steering wheel turning force
Tool number
(Kent-Moore No.)
Tool name
Description
ZZA1229D
LST024
Tool name
Description
Power tool Removing nuts and bolts
PBIC0190E
Revision: March 2010 2008 QX56

POWER STEERING FLUIDST-13
< ON-VEHICLE MAINTENANCE >
C
DE
F
H I
J
K L
M A
B
ST
N
O P
ON-VEHICLE MAINTENANCE
POWER STEERING FLUID
Checking Fluid LevelINFOID:0000000001534691
Check power steering fluid level with engine off, referring to the scale
on reservoir tank.
Use HOT range for fluid temperatures of 50 ° – 80 °C (122 ° – 176 °F).
Use COLD range for fluid temperatures of 0 ° – 30 °C (32° – 86°F).
CAUTION:
• Do not overfill.
• Do not reuse any used power steering fluid.
• Recommended fluid is Genuine NISSAN PSF or equivalent. Refer to MA-12, "
Fluids and Lubricants" .
Checking Fluid LeakageINFOID:0000000001534692
Check the hydraulic piping lines for improper attachment and for
leaks, cracks, damage, loose connec tions, chafing or deterioration.
1. Run engine until fluid temperature reaches 50 ° – 80° C (122° –
176° F) in reservoir tank. Keep engine speed idle.
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each “lock” position for five seconds to check fluid leakage.
CAUTION:
Do not hold steering wheel in a locked position for more
than 10 seconds. (There is the possibility that oil pump may
be damaged.)
4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not over tighten con- nector as this can damage O-ring, washer and connector.
5. If fluid leakage from oil pump is noticed, check oil pump. Refer to ST-17, "
On-Vehicle Inspection and Ser-
vice".
6. Check steering gear boots for accumulation of fluid indicating a leak from the steering gear.
Air Bleeding Hydraulic SystemINFOID:0000000001534693
Incomplete air bleeding causes the following. When this happens, bleed air again.
• Air bubbles in reservoir tank.
• Clicking noise in oil pump.
• Excessive buzzing in oil pump. NOTE:
When vehicle is stationary or while steering wheel is being turned slowly, some noise may be heard from oil
pump or gear. This noise is normal and does not affect any system.
1. Stop engine, and then turn steering wheel fully to right and left several times. CAUTION:
Do not allow steering fluid reservoir tank to go below the MIN level line. Check tank frequently and
add fluid as needed.
2. Run engine at idle speed. Turn steering wheel fully right and then fully left, hold for about three seconds.
Then check for fluid leakage.
3. Repeat step 2 several times at about three second intervals. CAUTION:
Do not hold steeri ng wheel in the locked position for more than 10 seconds. (There is the possibil-
ity that oil pump may be damaged.)
4. Check for air bubbles or cloudy fluid.
LGIA0021E
SGIA0506E
Revision: March 2010 2008 QX56

ST-20
< REMOVAL AND INSTALLATION >
STEERING COLUMN
STEERING COLUMN
Removal and InstallationINFOID:0000000004920100
CAUTION:
• Any time the ignition switch has been disconnected, removed or installed, the keys must be re-regis-
tered in the BCM. Refer to Consult-III operations IVIS/NVIS.
• Do not exert any load or impact in the axial dir ection immediately before or after column removal.
• Do not to move steering gear during removal of steering column assembly.
REMOVAL
1. Remove combination switch and spiral cable from steering column assembly. Refer to SR-7, "Removal
and Installation".
2. Remove the tilt motor and tilt sensor. Refer to ST-19, "
Removal and Installation".
3. Remove steering column cover. Refer to IP-14, "
Removal and Installation".
1. Driver air bag module2. Steering wheel3. Steering wheel side cover
4. Combination switch and spiral cable 5. Steering column assembly 6. Collar
7. Hole cover seal 8. Clamp9. Hole cover mounting plate
10. Hole cover 11. Upper joint12. Upper shaft
13. Boot clamp 14. Lower joint shaft15. Boot and clips (plastic)
WGIA0139E
Revision: March 2010 2008 QX56

ST-24
< REMOVAL AND INSTALLATION >
POWER STEERING GEAR AND LINKAGE
7. Remove steering outer socket from steering knuckle using Tool.Be careful not to damage ball joint boot.
CAUTION:
Temporarily tighten nut to prevent damage to threads and
to prevent Tool from coming off.
8. On 2WD models, remove stabilizer bolts then reposition stabilizer bar. Refer to FSU-16, "
Removal and
Installation".
9. Remove oil piping (high pressure side and low pressure side) from steering gear assembly, then drain fluid from piping.
10. Remove lower joint bolt of lower joint shaft.
11. Remove nuts of steering gear assembly using power tool, then remove bolts and steering gear assembly.
INSTALLATION
Installation is in the reverse order of removal.
• After removing/installing or replacing steering components, check wheel alignment. Refer to FSU-7, "
Front
Wheel Alignment".
• After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
ADJUST-
MENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement".
Tool number : HT72520000 (J-25730-A)
WGIA0130E
LGIA0032E
LGIA0029E
LGIA0024E
Revision: March 2010
2008 QX56

POWER STEERING GEAR AND LINKAGEST-31
< DISASSEMBLY AND ASSEMBLY >
C
DE
F
H I
J
K L
M A
B
ST
N
O P
POWER STEERING GEAR AND LINKAGE
Disassembly and AssemblyINFOID:0000000004920105
CAUTION:
• Secure steering gear assembly with a vise, using copper plates or something similar to prevent it
from being damaged. Do not grip cylinder with a vise.
• Before performing disassembly, clean steering gear assembly with kerosene. Be careful not to bring
any kerosene into contact with the di scharge and return port connectors.
DISASSEMBLY
1. Remove cylinder tubes from gear housing assembly.
2. Loosen lock nuts of outer sockets, and remove outer sockets.
3. Remove boot clamps of the small diameter si de and the large diameter side, then remove boot.
CAUTION:
When removing boots, be careful not to damage inner socket and gear housing assembly. If they
are damaged, change th em to avoid oil leaks.
4. Remove inner sockets.
INSPECTION AFTER DISASSEMBLY
Boot
Check boot for tears, cracks and deformation. Replace if necessary.
1. Boot clamp 2. Inner socket3. Boot
4. Boot clamp 5. Outer socket6. Cylinder tubes
7. Gear housing assembly 8. Connector
AWGIA0087GB
Revision: March 2010 2008 QX56