wheel INFINITI QX56 2006 Factory Service Manual

ON-VEHICLE SERVICEFSU-7
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Revision: November 2009 2006 QX56

Check with the manufacturer of your specific alignment machine for their recommended Service/Cali-
bration Schedule.
THE ALIGNMENT PROCESS
IMPORTANT: Use only the alignment specifications listed in this Service Manual. Refer to FSU-19, "Wheel
Alignment (Unladen*1 )*6" .
1. When displaying the alignment settings, many alignment machines use “indicators”: (Green/red, plus or minus, Go/No Go). Do NOT use these indicators.

The alignment specifications programmed into your alignment machine that operate these indicators
may not be correct.

This may result in an ERROR.
2. Some newer alignment machines are equipped with an optional “Rolling Compensation” method to “com- pensate” the sensors (alignment targets or head units). Do NOT use this “Rolling Compensation”
method.

Use the “Jacking Compensation” method. After installing the alignment targets or head units, raise the
vehicle and rotate the wheels 1/2 turn both ways.

See Instructions in the alignment machine you are using for more information.
CAMBER AND CASTER
1. Measure camber and caster of both the right and left wheels with a suitable alignment gauge and adjust as necessary to
specification.
NOTE:
Some vehicles may be equipped with straight (non-adjustable)
lover link bolts and washers. In order to adjust camber and
caster on these vehicles, first replace the lower link bolts and
washers with adjustable (cam) bolts and washers.
2. If outside of the specified value, adjust camber and caster using the cam bolts (1) in the front lower link (2).
CAUTION:
After adjusting the camber then check the toe-in.
NOTE:
Camber changes about 3' (0.05 °) with each graduation of one
cam bolt (1). Refer to table below for examples of lower link cam
bolt (1) effect on camber and caster.
3. Tighten the cam bolt nuts to specification. Refer to FSU-5, "
Components" .
TOE-IN
WARNING:

Always perform the following procedure on a flat surface.

Make sure that no person is in front of the vehicle before pushing it.Camber and
Caster
: Refer to
FSU-19, "
Wheel Alignment
(Unladen*1 )*6" .
SRA096A
WEIA0153E
Rear cam bolt 1 In 1 Out 1 In 1 Out 0 01 In 1 Out
Front cam bolt 1 Out 1 In 1 In 1 Out 1 In 1 Out 0 0
Camber
Degree minute
(Decimal degree) 0 (0) 0 (0) 7' (0.12
°) - 7' (-0.12°)3' (0.05°) - 3' (-0.05°)3' (0.05°)- 3' (-0.05°)
Caster
Degree minute
(Decimal degree) - 14' (-0.23
°) 14' (0.23°) 0 (0) 0 (0) 7' (0.12 °) - 7' (-0.12°) - 7' (-0.12°)7' (0.12°)

FSU-8
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
1. Bounce the front of vehicle up and down to stabilize the vehicle height (posture).
2. Push the vehicle straight ahead about 5 m (16 ft).
3. Put a mark on base line of the tread (rear side) of both front tires
at the same height as hub center as shown. These marks are
measuring points.
4. Measure the distance “A” on the rear side of the front tires as shown.
5. Push the vehicle slowly ahead to rotate the wheels 180 °
degrees (1/2 a turn).
CAUTION:
If the wheels have rotated more than 180 ° degrees (1/2
turn), start this procedure again from the beginning. Never
push the vehicle backward.
6. Measure the distance “B” on the front side of the front tires at the same marks as shown. Total toe-in is calculated as “A” – “B”.
7. Adjust the toe-in by varying the length of the steering outer socket.
a. Loosen the outer tie-rod lock nuts.
b. Adjust the toe-in by screwing the outer tie-rods in or out.
c. Tighten the outer tie-rod lock nuts to specification.
FRONT WHEEL TURNING ANGLE
NOTE:
Check front wheel turning angle after the toe-in inspection.
1. Place front wheels on turning radius gauges in straight ahead position and rear wheels on stands so that vehicle can be level.
Check the maximum inner and outer wheel turning angles for LH
and RH road wheels.
2. Start engine and run at idle, turn steering wheel all the way right and left, measure the turning angle.

Any turning angles are not adjustable. If any of steering
angles are out of the specification, check if the following parts
are worn or damaged.
–Steering gear
–Steering column
–Front suspension components
AFA050
Total toe-in : Refer to FSU-19, "Wheel Alignment
(Unladen*1 )*6" .
SFA234AC
Standard length “L” : Refer to PS-26, "Steering Outer
Socket and Inner Socket" .
Lock nut : Refer to PS-15, "
Removal and
Installation" .SGIA0167E
Wheel turning angle
(full turn) : Refer to
FSU-19, "Wheel
Alignment (Unladen*1 )*6" .
SFA439BA

FSU-10
COIL SPRING AND SHOCK ABSORBER
Revision: November 20092006 QX56
COIL SPRING AND SHOCK ABSORBERPFP:56210
Removal and InstallationEES0025A
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the shock absorber lower bolt using power tool.
3. Remove the three shock absorber upper nuts using power tool.
4. Remove the coil spring and shock absorber assembly.

Turn steering knuckle out to gain enough clearance for
removal.
INSTALLATION
Installation is in the reverse order of removal.

The lower seat step (2) in the shock absorber assembly (1)
faces outside of vehicle.
–Upper spring insulator (3)
–⇐: Front

Tighten all nuts and bolts to specification. Refer to FSU-5, "Com-
ponents" .

When installing wheel and tire, refer to WT-7, "Rotation" .
Disassembly and AssemblyEES0025B
DISASSEMBLY
1. Set the shock absorber in a vise, then loosen (without removing)
the piston rod lock nut as shown.
CAUTION:
Do not remove piston rod lock nut at this time.
2. Compress the spring using tool until the shock absorber mount- ing insulator can be turned by hand.
WARNING:
Make sure that the pawls of the two tools are firmly hooked
on the spring. The spring compressors must be tightened
alternately and evenly so as not to tilt the spring.
3. Remove the piston rod lock nut.

Discard the piston rod lock nut, use a new nut for assembly.
LEIA0093E
WEIA0155E
SSU002
SSU003

UPPER LINKFSU-13
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Revision: November 2009 2006 QX56
UPPER LINKPFP:54524
Removal and InstallationEES0025D
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the fender protector to access upper link. Refer to EI-23, "
Removal and Installation" .
3. Remove cotter pin and nut from upper link ball joint and discard the cotter pin.
4. Separate upper link ball joint stud from steering knuckle using To o l .

Support lower link with jack.
5. Remove upper link bolts and nuts, then remove upper link.
INSPECTION AFTER REMOVAL
Upper Link
Check for deformation and cracks. Replace if necessary.
Upper Link Ball Joint
Check for distortion and damage. Replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.

Tighten all nuts and bolts to specification. Refer to FSU-5, "Components" .
CAUTION:
Use a new cotter pin for installation of upper link ball joint nut.

When installing wheel and tire, refer to WT-7, "Rotation" .

After installation, check that the front wheel alignment is within specification. Refer to FSU-6, "Front
Wheel Alignment" .
Tool number : ST29020001 (J-24319-01)
LEIA0095E
LEIA0096E

FSU-14
LOWER LINK
Revision: November 20092006 QX56
LOWER LINKPFP:55020
Removal and InstallationEES0025E
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove lower shock absorber bolt.
3. Remove stabilizer bar connecting rod lower nut using power tool, then separate connecting rod from lower
link. Refer to FSU-12, "
Removal and Installation" .
4. Remove drive shaft nut, if equipped. Refer to FA X - 7 , "
Removal and Installation" .
5. Remove pinch bolt from steering knuckle using power tool, then separate lower link ball joint from steering knuckle.
6. Remove lower link cam bolts (1) and nuts, then the lower link (2).
NOTE:
Some vehicles may be equipped with straight (non-adjustable)
lover link bolts and washers. In order to adjust camber and
caster on these vehicles, first replace the lower link bolts and
washers with adjustable (cam) bolts and washers.
INSPECTION AFTER REMOVAL
Lower Link
Check for deformation and cracks. Replace if necessary.
Lower Link Bushing
Check for distortion and damage. Replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.

Tighten all nuts and bolts to specification. Refer to FSU-5, "Components" .

When installing wheel and tire, refer to WT-7, "Rotation" .

After installation, check that the front wheel alignment is within specification. Refer to FSU-6, "Front
Wheel Alignment" .
LEIA0097E
WEIA0153E

KNUCKLEFSU-17
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Revision: November 2009 2006 QX56
KNUCKLEPFP:40014
On-Vehicle Inspection and ServiceEES0025H
Make sure the mounting conditions (looseness, backlash) of each component and component status (wear,
damage) are within specifications. Refer to FSU-20, "
Ball Joint" .
Removal and InstallationEES0025I
REMOVAL
1. Remove wheel hub and bearing assembly. Refer to FAX-5, "Removal and Installation" .

Disconnect wheel sensor harness connector. Do not remove wheel sensor from wheel hub and bearing
assembly for this procedure.
2. Remove steering outer socket from steering knuckle using Tool. CAUTION:

Be careful not to damage ball joint boot.

Temporarily tighten nut to prevent damage to threads and
to prevent Tool from coming off.
3. Remove the coil spring and shock absorber assembly using power tool. Refer to FSU-10, "
Removal and
Installation" .
4. Support lower link using a suitable jack.
5. Remove cotter pin and nut from upper link ball joint and discard the cotter pin.
1. Disc rotor 2. Wheel hub and bearing assembly 3. Wheel stud
4. Splash guard 5. Steering knuckle⇐Front
WDIA0328E
Tool number : HT72520000 (J-25730-A)
WGIA0130E

FSU-18
KNUCKLE
Revision: November 20092006 QX56
6. Separate upper link ball joint from steering knuckle using Tool.
7. Remove pinch bolt from steering knuckle using power tool, then
separate lower link ball joint from steering knuckle.
8. Remove steering knuckle from vehicle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each part, replace if necessary.

Perform ball joint inspection. Refer to FSU-15, "Inspection" .
INSTALLATION
Installation is in the reverse order of removal.

Refer to FSU-5, "Components" for tightening torques.
CAUTION:
Use a new cotter pin for installation of lock nut.

When installing disc rotor on wheel hub and bearing assembly,
align the marks.
NOTE:
When not using the alignment mark, refer to BR-21, "
FRONT
DISC BRAKE" .

When installing wheel and tire, refer to WT-7, "Rotation" .
Tool number : ST29020001 (J-24319-01)
LEIA0095E
LEIA0097E
WDIA0044E

SERVICE DATA AND SPECIFICATIONS (SDS)FSU-19
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Revision: November 2009 2006 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsEES0025J
Spring Free HeightEES0025K
Wheel Alignment (Unladen*1 )*6EES0025L
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Target value 37° 31′ (37.52°)
*3: Target value 33 ° 59′ (33.98°)
*4: Target value 37 ° 44′ (37.73°)
*5: Target value 33 ° 29′ (33.48°)
*6: Some vehicles may be equipped with straight (non-adjustable) lover link bolts and washers. In order to adjust camber and ca ster on
these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers. Suspension type
Independent double wishbone coil over shock
Shock absorber type Double-acting hydraulic
Stabilizer Standard equipment
2WD325.5 ± 3 mm (12.8 ± 0.1 in)
4WD 335.0 ± 3 mm (13.2 ± 0.1 in)
Drive type 2WD 4WD
Camber
Degree minute (decimal degree) Minimum -0
° 51′ (-0.85° )- 0° 33′ (-0.55 °)
Nominal -0° 6 ′ (-0.10 °)0 ° 12′ (0.20 °)
Maximum 0° 39 ′ (0.65 °)0 ° 57′ (0.95 °)
Cross camber 0° 45′ (0.75 °) or less 0 ° 45′ (0.75 °) or less
Caster
Degree minute (decimal degree) Minimum
3° 15 ′ (3.25 °)2 °45′ (2.75 °)
Nominal 4° 0 ′ (4.00 °)3 ° 30′ (3.50 °)
Maximum 4° 45 ′ (4.75 °)4 ° 15′ (4.25 °)
Cross caster 0° 45′ (0.75°) or less 0 ° 45′ (0.75 °) or less
Kingpin inclination
Degree minute (decimal degree) 13
° 32 ′ (13.53 °)1 3°13′ (13.22 °)
Total toe-in Distance (A
− B) Minimum
1.8 mm (0.07 in) 1.8 mm (0.07 in)
Nominal 2.8 mm (0.11 in) 2.8 mm (0.11 in)
Maximum 3.8 mm (0.15 in) 3.8 mm (0.15 in)
Angle (left side and right side)
Degree minute (decimal degree) Minimum
0° 3 ′ (0.05 °)0 ° 3′ (0.05 °)
Nominal 0° 5 ′ (0.08 °)0 ° 5′ (0.08 °)
Maximum 0° 7 ′ (0.12 °)0 ° 7′ (0.12 °)
Wheel turning angle
(full turn) Inside
Degree minute (decimal degree)
34
° 31′ – 38 ° 31′ *2
(34.52 ° – 38.52 °) 34°
44′ – 38 ° 44′ *4
(34.73 ° – 38.73 °)
Outside
Degree minute (decimal degree) 30
° 59′ – 34 ° 59′ *3
(30.98 ° – 34.98 °) 30°
29′ – 34 ° 29′ *5
(30.48 ° – 34.48 °)
SFA234AC

FSU-20
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
Ball JointEES0025M
*1 Measure at cotter pin hole
*2 Measure at groove
Wheelarch Height (Unladen*1 )EES0025N
Unit: mm (in)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Verify the vehicle height. If vehicle height is not within ± 10 mm (0.39 in) of the specification, perform the control unit initialization pro-
cedure. Refer to RSU-47, "
Initialization Procedure" .
Swinging force “A”
Upper ball joint 8.1 – 103.2 N (0.8 – 10.5 kg-f, 1.8 – 23.2 lb-f) *1
Lower ball joint 11.4 – 145.5 N (1.1 – 14.8 kg-f, 2.5 – 32.7 lb-f) *2
Turning torque “B” 0.5 - 6.4 N·m (0.05 - 0.65 kg-m, 4 - 57 in-lb)
Vertical end play “C” 0 mm (0 in)
SFA858AWEIA0076E
Suspension type
Air leveling*2
Applied model2WD4WD
Front wheelarch height (Hf) 913
(35.94) 931
(36.65)
Rear wheelarch height (Hr) 912
(35.91) 932
(36.69)
LEIA0085E

GI-2Revision: November 20092006 QX56
VEHICLE IDENTIFICATION NUMBER
ARRANGEMENT ..............................................
... 48
ENGINE SERIAL NUMBER ............................. ... 49
TRANSFER SERIAL NUMBER ........................ ... 49
AUTOMATIC TRANSMISSION NUMBER ........ ... 49Dimensions ..........................................................
... 50
Wheels & Tires ..................................................... ... 50
TERMINOLOGY ..................................................... ... 51
SAE J1930 Terminology List ................................ ... 51