2006 INFINITI FX35 Service Manual

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Page 3977 of 4462

INFINITI FX35 2006 Service Manual POWER STEERING OIL PUMP PS-29
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Revision: 2006 December 2006 FX35/FX45
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceNGS000C5
CHECKING RELIEF O

POWER STEERING OIL PUMP PS-29
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Revision: 2006 December 2006 FX35/FX45
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceNGS000C5
CHECKING RELIEF OIL PRESSURE (VQ35DE MODELS)
CAUTION:
Before starting work, confirm belt tension is proper.
1. Connect oil pressure gauge (SST) and oil pressure gauge adapter (SST) 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 to 80 °C (122 to 176 °F).
CAUTION:
Warm up engine with shut-off valve fully opened. If
engine is started with shut-off valve closed, fluid pres-
sure 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, disassemble and repair oil pump. Refer to PS-31, "
Disas-
sembly and Assembly (VQ35DE Models)" .
5. After inspection, disconnect oil pressure gauge (SST) and oil pressure gauge adapter (SST) from hydrau- lic circuit, connect oil pump discharge connector and high pressure hose. Add fluid and bleed air from
hydraulic circuit thoroughly.
Refer to PS-8, "
Air Bleeding Hydraulic System" .
CHECKING RELIEF OIL PRESSURE (VK45DE MODELS)
CAUTION:
Before starting work, confirm belt tension is proper.
SGIA0570E
SST
Pressure gauge KV48103500
(J26357&J26357-10)
Oil pump side Eye joint KV48102500-01 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
High pressure
piping side Flare joint KV48102500-02 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
Relief oil pressure: 9,900 - 10,700 kPa (101 - 109.1 kg/cm
2 , 1436 - 1552 psi)
SGIA0522E

Page 3978 of 4462

INFINITI FX35 2006 Service Manual PS-30
POWER STEERING OIL PUMP
Revision: 2006 December 2006 FX35/FX45
1. Connect oil pressure gauge (SST) and oil pressure gauge adapter (SST) between oil pump discharge connector and high
pressure hos

PS-30
POWER STEERING OIL PUMP
Revision: 2006 December 2006 FX35/FX45
1. Connect oil pressure gauge (SST) and oil pressure gauge adapter (SST) 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 to 80 °C (122 to 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, disassemble and repair oil pump. Refer to PS-35, "
Disas-
sembly and Assembly (VK45DE Models)" .
5. After inspection, disconnect oil pressure gauge (SST) and oil pressure gauge adapter (SST) from hydrau- lic circuit, connect oil pump discharge connector and high pressure hose. Add fluid and bleed air from
hydraulic circuit thoroughly. Refer to PS-8, "
Air Bleeding Hydraulic System" .
Removal and Installation (VQ35DE Models)NGS000C6
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Loosen belt tensioner adjust screw, then remove belt from oil pump pulley. Refer to EM-15, "
DRIVE
BELTS" .
3. Drain power steering fluid from reservoir tank.
SGIA0570E
SST
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 ( — )
SGIA0572E
Relief oil pressure:
9,900 - 10,700 kPa (101 - 109.1 kg/cm
2 , 1436 - 1552 psi)

Page 3979 of 4462

INFINITI FX35 2006 Service Manual POWER STEERING OIL PUMP PS-31
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Revision: 2006 December 2006 FX35/FX45
4. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer t

Page 3980 of 4462

INFINITI FX35 2006 Service Manual PS-32
POWER STEERING OIL PUMP
Revision: 2006 December 2006 FX35/FX45
Poor performance
DISASSEMBLY
NOTE:
Fix oil pump in vise as the occasion demands.
CAUTION:
When retaining drive shaft in a vise

Page 3981 of 4462

INFINITI FX35 2006 Service Manual POWER STEERING OIL PUMP PS-33
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Revision: 2006 December 2006 FX35/FX45
3. Install flow control valve A, flow control valve spring and flow control valve B assembl

Page 3982 of 4462

INFINITI FX35 2006 Service Manual PS-34
POWER STEERING OIL PUMP
Revision: 2006 December 2006 FX35/FX45
8. Install vane to rotor with facing the round portion outside.
9. Using a hammer and a 10 mm (0.39 in) box, install rotor snap ri

Page 3983 of 4462

INFINITI FX35 2006 Service Manual POWER STEERING OIL PUMP PS-35
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Revision: 2006 December 2006 FX35/FX45
Disassembly and Assembly (VK45DE Models)NGS000C9
INSPECTION BEFORE DISASSEMBLY
Disassemble p

Page 3984 of 4462

INFINITI FX35 2006 Service Manual PS-36
POWER STEERING OIL PUMP
Revision: 2006 December 2006 FX35/FX45
6. Remove snap ring from drive shaft assembly and press out it. CAUTION:
When removing snap ring, be careful not to damage drive
s

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