2006 INFINITI QX56 wheel

MA-28
CHASSIS AND BODY MAINTENANCE
Revision: November 20092006 QX56
Wheel Balance (Maximum Allowable Imbalance)

If either residual imbalance value exceeds 5 g (0.18 oz), repeat installation procedures.
Tire RotationELS001H5
1. Rotate the tires on each side from front to back as shown.
2. Adjust the tire pressure to specification. Refer to WT-38, "
Tire" .
3. After the tire rotation, retighten the wheel nuts after the vehicle has been driven for 1,000 km (600 miles), and also after a wheel
and tire have been installed such as after repairing a flat tire.
Checking Brake Fluid Level and LeaksELS001CA

Check the brake fluid level in the reservoir tank. It should be
between the “MAX ” and “MIN” lines on the reservoir tank.

If the fluid level is extremely low, check the brake system.

If the brake warning lamp comes on when the fluid is at the cor-
rect level, check the brake fluid level switch and the parking
brake switch.
Checking Brake Lines and CablesELS001CB
1. Check the brake lines and hoses for cracks, deterioration, and
other damage. Replace any damaged parts.
CAUTION:
If brake fluid leaks are visible around the brake line joints,
retighten the joint, or replace damaged parts as necessary.
2. Check for brake fluid leaks by fully depressing brake pedal while engine is running.
Checking Disc BrakeELS001CC
ROTOR
Check the rotor condition for wear or damage. Refer to BR-32,
"Front Disc Brake" , BR-33, "Rear Disc Brake" .
Maximum allowable imbalance Dynamic (At rim flange)
5 g (0.18 oz) (one side)
Static 10 g (0.35 oz)
Wheel nuts : Refer to WT-6, "WHEEL AND TIRE
ASSEMBLY" .
AMA159
WFIA0173E
SBR389C
SMA260A

MA-30
CHASSIS AND BODY MAINTENANCE
Revision: November 20092006 QX56
CHECKING LINES

Check lines for improper attachment, leaks, cracks, damage,
loose connections, chafing, and deterioration.
Checking Axle and Suspension PartsELS001CF
FRONT AND REAR AXLE AND SUSPENSION PARTS
Check front and rear axle and suspension parts for excessive play, cracks, wear or other damage.

Shake each wheel to check for excessive play.

Rotate each wheel to check for abnormal noise.

Check the axle and suspension nuts and bolts for looseness.

Check the strut and shock absorber for oil leakage or other damage.

Check the suspension ball joints for grease leakage and ball joint dust cover for cracks or other damage.
DRIVE SHAFT
Check the boots and drive shaft for cracks, wear, damage, and
grease leakage.
SGIA0506E
SMA525A
SFA901

PARKING BRAKE SYSTEMPB-3
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Revision: November 2009 2006 QX56
PARKING BRAKE SYSTEMPFP:36010
On-Vehicle ServiceEFS0068J
PEDAL STROKE

When parking brake pedal is operated with the specified force, make sure the stroke is within the specified
number of notches. Check by listening and counting the ratchet clicks.
INSPECTION

Make sure the components are attached properly, checking for looseness or backlash.

Check parking brake pedal assembly for bends, damage and cracks, and replace if necessary.

Check cable for wear and damage, and replace if necessary.

Check parking brake warning lamp switch for malfunction, and replace if necessary. Refer to DI-32, "Wir-
ing Diagram — WARN —" .
ADJUSTMENT
1. Remove the lower instrument panel LH. Refer to IP-13, "INSTRUMENT LOWER COVER LH" .
2. Partially engage parking brake pedal to access adjusting nut.
3. Insert a deep socket wrench to rotate adjusting nut and loosen cable sufficiently. Then, disengage the parking brake pedal.
4. Remove the wheel and tire using power tool.
5. Remove the disc rotor and measure inner diameter at widest point using Tool.
6. Transfer measurement less 0.6 mm to the parking brake shoes and adjust accordingly.
7. Using wheel nuts, secure the disc to the hub to prevent it from tilting.
8. Rotate the disc rotor to make sure there is no drag.
9. Adjust cable as follows:
a. Operate pedal 10 or more times with a force of 490 N (50 kg-f, 110 lb-f).
b. Rotate adjusting nut with deep socket to adjust pedal stroke to specification.
c. With parking brake pedal completely disengaged, make sure there is no drag on the parking brake.
10. Install the disc rotor.
11. Install the wheel and tire using power tool.
12. Install the lower instrument panel LH. Refer to IP-13, "
INSTRU-
MENT LOWER COVER LH" .
Pedal stroke : 3
− 4 notches [under force of 196 N (20.0 kg-f, 44.1 lb-f)]
WFIA0165E
Tool number : — (J-21177-A)
Pedal stroke : 3 − 4 notches [under force of
196 N (20.0 kg-f, 44.1 lb-f)]
WFIA0166E

PB-6
PARKING BRAKE SHOE
Revision: November 20092006 QX56
PARKING BRAKE SHOEPFP:44060
Removal and InstallationEFS0068M
COMPONENTS
REMOVAL
WARNING:
Clean the brakes with a vacuum dust collector to minimize the hazard of airborne particles or other
materials.
NOTE:
Remove the disc rotor only with the parking brake pedal completely disengaged.
1. Remove wheel hub and bearing assembly. Refer to FAX-5, "
Removal and Installation" .

Disconnect the wheel sensor at the harness connector. It is not necessary to remove the wheel sensor
from the wheel hub and bearing assembly.
2. Remove the return springs.
3. Remove the adjuster.
4. Remove the retainers, anti-rattle pins and shoes.
5. Disconnect the rear cable from the toggle lever.
6. Remove the back plate.
1. Back plate 2. Shoes 3. Toggle lever
4. Return springs 5. Retainers 6. Adjuster
7. Anti-rattle pins
WFIA0164E

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPR-3
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Revision: November 2009 2006 QX56
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS001W4
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PR-4
(front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
FFD-6, "
NVH Troubleshooting Chart
"
RFD-7, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
RAX-4, "
NVH Troubleshooting Chart
"
FSU-4, "
NVH Troubleshooting Chart
"
RSU-5, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
PR-3, "
NVH Troubleshooting Chart
"
BR-5, "
NVH Troubleshooting Chart
"
PS-5, "
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 ××××××××

PS-1
POWER STEERING SYSTEM
G STEERING
CONTENTS
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A
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Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
Precautions for Steering System ......................... ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tools (SST) ................................ ..... 3
Commercial Service Tools ................................... ..... 4
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 5
NVH Troubleshooting Chart ................................ ..... 5
POWER STEERING FLUID ................................... ..... 6
Checking Fluid Level ........................................... ..... 6
Checking Fluid Leakage ...................................... ..... 6
Air Bleeding Hydraulic System ............................ ..... 6
STEERING WHEEL .................................................... 7 On-Vehicle Inspection and Service ..................... ..... 7
CHECKING CONDITION OF INSTALLATION . ..... 7
CHECKING STEERING WHEEL PLAY ........... ..... 7
CHECKING NEUTRAL POSITION ON STEER-
ING WHEEL ..................................................... ..... 7
CHECKING STEERING WHEEL TURNING
FORCE ............................................................. ..... 7
CHECKING FRONT WHEEL TURNING ANGLE ..... 8
Removal and Installation ..................................... ..... 8
REMOVAL ........................................................ ..... 8
INSTALLATION ................................................ ..... 8
TILT SYSTEM ............................................................. 9 Removal and Installation ..................................... ..... 9
TILT MOTOR AND TILT SENSOR ................... ..... 9
STEERING COLUMN ............................................ ... 10
Removal and Installation ..................................... ... 10
REMOVAL ........................................................ ... 10
INSPECTION AFTER REMOVAL .................... .... 11
INSTALLATION ................................................ .... 11INSPECTION AFTER INSTALLATION .............
... 12
Disassembly and Assembly ................................. ... 13
DISASSEMBLY ................................................ ... 13
ASSEMBLY ...................................................... ... 14
INSPECTION AFTER ASSEMBLY ................... ... 14
POWER STEERING GEAR AND LINKAGE ......... ... 15
Removal and Installation ..................................... ... 15
REMOVAL ........................................................ ... 15
INSTALLATION ................................................ ... 16
INSPECTION AFTER INSTALLATION ............. ... 17
Disassembly and Assembly ................................. ... 17
DISASSEMBLY ................................................ ... 17
INSPECTION AFTER DISASSEMBLY ............. ... 18
ASSEMBLY ...................................................... ... 19
POWER STEERING OIL PUMP ............................ ... 21
On-Vehicle Inspection and Service ...................... ... 21
CHECKING RELIEF OIL PRESSURE ............. ... 21
Removal and Installation ..................................... ... 21
REMOVAL ........................................................ ... 21
INSTALLATION ................................................ ... 21
Disassembly and Assembly ................................. ... 22
INSPECTION BEFORE DISASSEMBLY .......... ... 22
DISASSEMBLY ................................................ ... 22
INSPECTION AFTER DISASSEMBLY ............. ... 22
ASSEMBLY ...................................................... ... 22
HYDRAULIC LINE ................................................. ... 23
Removal and Installation ..................................... ... 23
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 25
Steering Wheel .................................................... ... 25
Steering Column .................................................. ... 25
Steering Outer Socket and Inner Socket ............. ... 26
Steering Gear ...................................................... ... 27
Oil Pump ................................................................. 27
Steering Fluid .......................................................... 27

PREPARATIONPS-3
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Revision: November 2009 2006 QX56
PREPARATIONPFP:00002
Special Service Tools (SST)EGS00121
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
ST3127 S000
(See J-25765-A)
Preload gauge
1. GG9103000
(J-25765-A)
Torque wrench
2. HT62940000
( — )
Socket adapter
3. HT62900000
( — )
Socket adapter Inspecting of pinion rotating torque and rota-
tional torque for ball joint
HT72520000
(J-25730-A)
Ball joint remover Removing steering outer socket
1. KV48105300-4 and 5295262U10
( — )
Connector A and O-ring
2. KV48105300-3 and 5295262U00
( — )
Eye-bolt and O-ring
3. KV48103500
(J-26357 and J-26357-10)
Pressure gauge and shut-off valve
4. KV48105300-1 and 5295262U00
( — )
Connector B and O-ring
5. KV48105300-2
( — )
Nut Measuring oil pump relief pressure
KV481J0010
(J-1859-A)
Steering wheel puller Removing steering wheel
KV481J0020
(J-42578)
Steering wheel puller legs Removing steering wheel
S-NT541
NT146
SGIA0427E
LHIA0043E
LHIA0044E

PS-4
PREPARATION
Revision: November 20092006 QX56
Commercial Service ToolsEGS00122
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