service INFINITI QX56 2006 Factory Service Manual

POWER STEERING OIL PUMPPS-21
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Revision: November 2009 2006 QX56
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceEGS000UJ
CHECKING RELIEF OIL PRESSURE
CAUTION:
Before starting work, confirm belt tension is proper.
1. Connect Tool between oil pump discharge connector and high
pressure hose and then bleed air from the hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches 50 – 80 °C (122 – 176°F).
CAUTION:

Warm up engine with shut-off valve fully opened. If engine is started with shut-off valve closed,
fluid pressure in power steering pump increases to maximum. This will raise fluid temperature
excessively.

Be careful not to contact hose with belt when engine is started.
3. With engine at idle, close shut-off valve and read the relief oil pressure.
CAUTION:
Do not close shut-off valve of pressure gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly.

If relief oil pressure is outside the specification, repair or replace oil pump. Refer to PS-22, "Disassem-
bly and Assembly" .
5. After inspection, disconnect oil pressure gauge and oil pressure gauge adapter from hydraulic circuit, con- nect oil pump discharge connector and high pressure hose. Add fluid and bleed air from hydraulic circuit
thoroughly. Refer to PS-6, "
Air Bleeding Hydraulic System" .
Removal and InstallationEGS000UK
REMOVAL
1. Drain power steering fluid from reservoir tank.
2. Remove engine room cover. Refer to EM-12, "
Removal and Installation" .
3. Remove air duct assembly. Refer to EM-15, "
Removal and Installation" .
4. Remove power steering reservoir tank.
5. Remove serpentine drive belt belt from auto tensioner and power steering pump. Refer to EM-13,
"Removal and Installation" .
6. Disconnect pressure sensor electrical connector.
7. Remove high pressure and low pressure piping from power steering oil pump. Refer to PS-23, "
HYDRAU-
LIC LINE" .
8. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Installation is in the reverse order of removal. Refer to PS-23, "HYDRAULIC LINE" for tightening torque.

After installation, bleed air. Refer to PS-6, "Air Bleeding Hydraulic System" .
NOTE:
Belt tension is automatic and requires no adjustment.
Tool number:
Pressure gauge and shut-off valve KV48103500
(J26357 and J26357-10)
Oil pump side Connector A and
O-ring
KV48105300-4 and 5295262U10
(
— )
Eye-bolt and O-ring KV48105300-3 and 5295262U00
(
— )
High pressure
piping side Connector B and
O-ring
KV48105300-1 and 5295262U00
(
— )
Nut KV48105300-2
(
— )
Relief oil pressure
: 9.0 – 9.8 mPa (91.77 – 99.93 kg/cm2 , 1305.34 – 1421.37 psi)
SGIA0570E

SERVICE DATA AND SPECIFICATIONS (SDS)PS-25
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Revision: November 2009 2006 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Steering WheelEGS000UN
Steering ColumnEGS000UO
Inspection After Assembly
Unit: mm (in)
Inspection After Removal
Unit: mm (in)
End play of the axial direction for steering wheel
0 mm (0 in)
Steering wheel play on the outer circumference 0 − 35 mm (0 − 1.38 in)
Steering wheel turning force 39 N (4 kg-f, 9 lb-f) or less
Steering column length “L” 610 (24.02)
WGIA0080E
Steering column length “L2” 262 (10.31)
Steering column length “ L1” 158 (6.22)
SGIA0475E

PS-26
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
Inspection After Installation
Steering Outer Socket and Inner SocketEGS000UP
Unit: mm (in)
Range
“A ” 61.3 mm (2.41 in)
WGIA0083E
Tie-rod ball joint outer socketSwinging torque
0.3 − 2.9 N ·m (0.03 − 0.29 kg-m, 3 − 25 in-lb)
Measurement on spring balance
Measuring point: cotter pin hole of stud 4.84
− 46.7 N (0.50 − 4.7 kg, 4 − 34 lb)
Rotating torque 0.3 − 2.9 N ·m (0.03 − 0.29 kg-m, 3 − 25 in-lb)
Axial end play 0.5 mm (0.020 in) or less
Tie-rod ball joint inner socket Swinging torque
1.0 − 7.8 N ·m (0.11 − 0.79 kg-m, 9 − 69 in-lb)
Measurement on spring balance

Measuring point: "L" mark see above,
"L"=83.2 mm (3.276 in). 12.1
− 93.7 N (1.3 − 9.5 kg, 9 − 69 lb)
Axial end play 0.2 mm (0.08 in) or less
SGIA0358E
Inner socket length “L ” 115.2 (4.54)
SGIA0167E

SERVICE DATA AND SPECIFICATIONS (SDS)PS-27
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Revision: November 2009 2006 QX56
Steering GearEGS000UQ
Oil PumpEGS000UR
Steering FluidEGS000US
Steering gear modelPR26AM
Rack neutral position, dimension “L ” (rack stroke) 85.5 mm (3.36 in)
Rack sliding force At the neutral point:
Range within ±
11.5 mm
( ± 0.453 in) from the neutral
position
(in power ON) Area average value 250.1
− 308.9 N (25.5 − 31.5 kg, 56.2 − 69.5 lb)
Area minimum value 200 N (20.4 kg, 45 lb)
Allowable variation 98 N (10 kg, 22 lb) or less
STC0034D
Relief oil pressure
9.0 − 9.8 mPa (91.77 − 99.93 kg/cm2 , 1305.34 − 1421.37 psi)
Fluid capacity
Approx. 1.0 (1-1/8 US qt, 7/8 Imp qt)

PS-28
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56

RAX-1
REAR AXLE
D DRIVELINE/AXLE
CONTENTS
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Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 2
Caution ................................................................ ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tools (SST) ................................ ..... 3
Commercial Service Tools ................................... ..... 3
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 4
NVH Troubleshooting Chart ................................ ..... 4
WHEEL HUB ......................................................... ..... 5
On-Vehicle Inspection and Service ..................... ..... 5
WHEEL BEARING INSPECTION .................... ..... 5
Removal and Installation ..................................... ..... 5
REMOVAL ........................................................ ..... 5
INSTALLATION ................................................ ..... 6REAR DRIVE SHAFT ............................................
..... 7
Components ........................................................ ..... 7
Removal and Installation ..................................... ..... 7
REMOVAL ........................................................ ..... 7
INSPECTION AFTER REMOVAL .................... ..... 8
INSTALLATION ................................................ ..... 8
Disassembly and Assembly ................................. ..... 8
DISASSEMBLY ................................................ ..... 8
INSPECTION AFTER DISASSEMBLY ............. ..... 9
ASSEMBLY ...................................................... ... 10
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 14
Wheel Bearing ..................................................... ... 14
Drive Shaft ........................................................... ... 14

RAX-2
PRECAUTIONS
Revision: November 20092006 QX56
PRECAUTIONSPFP:00001
CautionEDS001XJ
Observe the following precautions when disassembling and servicing drive shaft.

Perform work in a location which is as dust-free as possible.

Before disassembling and servicing, clean the outside of parts.

Prevention of the entry of foreign objects must be taken into account during disassembly of the service
location.

Disassembled parts must be carefully reassembled in the correct order. If work is interrupted, a clean
cover must be placed over parts.

Paper shop cloths must be used. Fabric shop cloths must not be used because of the danger of lint adher-
ing to parts.

Disassembled parts (except for rubber parts) should be cleaned with kerosene which shall be removed by
blowing with air or wiping with paper shop cloths.

PREPARATIONRAX-3
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Revision: November 2009 2006 QX56
PREPARATIONPFP:00002
Special Service Tools (SST)EDS001XK
The actual shapes of the Kent-Moore tools may differ from those of the special service tools illustrated here.
Commercial Service ToolsEDS001XL
Tool number
(Kent-Moore No.)
Tool nameDescription
KV38100500
(—)
Drift Installing drive shaft plug
a: 80 mm (3.15 in) dia.
b: 60 mm (2.36 in) dia.
KV38102200
(—)
Drift Installing drive shaft plug
a: 90 mm (3.54 in) dia.
b: 31 mm (1.22 in) dia.
ZZA0701D
ZZA0920D
Tool name
Description
Power tools Removing bolts and nuts
PBIC0190E

WHEEL HUBRAX-5
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Revision: November 2009 2006 QX56
WHEEL HUBPFP:43202
On-Vehicle Inspection and ServiceEDS001XN
Inspect the components for any looseness or back lash. Inspect each component for any excessive wear or
damage. Replace any components as necessary.
WHEEL BEARING INSPECTION

Move the wheel hub and bearing assembly in the axial direction by hand to check the axial end play.
Check that the axial end play is with specification. Replace the wheel hub and bearing assembly as nec-
essary.

Rotate the wheel hub and bearing assembly to check that there are no unusual noises or other abnormal
conditions. Replace the wheel hub and bearing assembly as necessary.
Removal and InstallationEDS001XO
Rear Wheel Hub and Bearing Assembly
NOTE:
The rear ABS sensor is routed through the back of the rear backing plate and into the side of the wheel hub
and bearing assembly. It is necessary to remove the wheel hub and bearing assembly to remove the rear ABS
sensor.
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the rear brake caliper, without disconnecting the hydraulic hose, using power tool. Reposition the
rear brake caliper aside using suitable wire. Refer to BR-28, "
Removal and Installation of Brake Caliper
and Disc Rotor" .
NOTE:

Do not depress the brake pedal while the brake caliper is removed.
3. Remove the rear disc rotor. Axial end play : 0 mm (0 in)
WDIA0189E
1. Back plate
2. Rear ABS sensor3. Wheel hub and bearing assembly
4. Wheel stud 5. Rear disc rotor6. Cotter pin

RAX-14
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Wheel BearingEDS001XR
Drive ShaftEDS001XS
Measurement of spring scaleLess than 26.6 N (2.7 kg, 5.95 lb)
Axial end play 0 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)