2006 INFINITI QX56 Factory Service Manual

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Page 2753 of 3383

INFINITI QX56 2006 Factory Service Manual PS-20
POWER STEERING GEAR AND LINKAGE
Revision: November 20092006 QX56
8. Thread the outer sockets onto the inner sockets to the specified
length "L", then tighten the lock nuts to the specification.

Page 2754 of 3383

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

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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

Page 2755 of 3383

INFINITI QX56 2006 Factory Service Manual PS-22
POWER STEERING OIL PUMP
Revision: November 20092006 QX56
Disassembly and AssemblyEGS00123
INSPECTION BEFORE DISASSEMBLY
Disassemble the power steering oil pump only if the following items are fo

Page 2756 of 3383

INFINITI QX56 2006 Factory Service Manual HYDRAULIC LINEPS-23
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Revision: November 2009 2006 QX56
HYDRAULIC LINEPFP:49721
Removal and InstallationEGS000UM
Refer to the following illustration for hydralic line removal.

Page 2757 of 3383

INFINITI QX56 2006 Factory Service Manual PS-24
HYDRAULIC LINE
Revision: November 20092006 QX56
Installation is in the reverse order of removal.
Confirm mating marks are aligned with hose and clamp, then
correct if needed.
To install eye jo

Page 2758 of 3383

INFINITI QX56 2006 Factory Service Manual 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
Ins

Page 2759 of 3383

INFINITI QX56 2006 Factory Service Manual 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

Page 2760 of 3383

INFINITI QX56 2006 Factory Service Manual 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 neut

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