Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti Q45 FY33 F50 2001-2006 Approved 2006_Q45 ps

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POWER STEERING SYSTEM

G STEERING

POWER STEERING SYSTEM
SECTION PS B

E
CONTENTS
PRECAUTIONS ......................................................... 2
. Removal and Installation ....................................... 15 . F
Precautions for Supplemental Restraint System COMPONENT .................................................... 15 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL .......................................................... 15.
SIONER" ................................................................. 2
. INSTALLATION .................................................. 16 . PS
Precautions for Steering System ............................. 2 . Disassembly and Assembly ................................... 17 .
PREPARATION .......................................................... 3
. COMPONENT .................................................... 17 .
Special Service Tools .............................................. 3
. DISASSEMBLY .................................................. 18 .
H
Commercial Service Tools ....................................... 4 . INSPECTION AFTER DISASSEMBLY ............... 19 .
NOISE, VIBRATION AND HARSHNESS (NVH) ASSEMBLY ........................................................ 20 .
TROUBLESHOOTING ............................................... 5 . POWER STEERING OIL PUMP .............................. 26 .
NVH Troubleshooting Chart .................................... 5 . On-Vehicle Service ................................................ 26 . I
POWER STEERING FLUID ....................................... 6 . RELIEF OIL PRESSURE ................................... 26 .
Checking Fluid Level ............................................... 6
. Removal and Installation ....................................... 27 .
Checking Fluid Leakage .......................................... 6 . COMPONENTS .................................................. 27 . J
Air Bleeding Hydraulic System ................................ 7 . REMOVAL .......................................................... 27.
STEERING WHEEL ................................................... 8 . INSTALLATION .................................................. 27 .
On-Vehicle Service .................................................. 8
. Disassembly and Assembly ................................... 28 .
K
CONDITION OF INSTALLATION ......................... 8 . COMPONENT .................................................... 28 .
STEERING WHEEL PLAY ................................... 8 . DISASSEMBLY .................................................. 29 .
NEUTRAL POSITION ON STEERING WHEEL 8 ..... INSPECTION AFTER DISASSEMBLY ............... 29 .
STEERING WHEEL TURNING FORCE .............. 8 . ASSEMBLY ........................................................ 30 . L
RACK SLIDING FORCE ...................................... 9 . HYDRAULIC LINE ................................................... 32 .
FRONT WHEEL TURNING ANGLE .................... 9 . Removal and Installation ....................................... 32 .
Removal and Installation ....................................... 10 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 34 . M
REMOVAL .......................................................... 10
. General Specifications ........................................... 34 .
INSTALLATION .................................................. 10. Inspection and Adjustment .................................... 34 .
STEERING COLUMN ...............................................11 . STEERING WHEEL AXIAL END PLAY AND
Removal and Installation ........................................11 . PLAY ................................................................... 34
.
COMPONENT .....................................................11 . STEERING WHEEL TURNING FORCE ............ 34 .
REMOVAL ...........................................................11
. STEERING COLUMN LENGTH ......................... 34 .
INSPECTION AFTER REMOVAL ...................... 12 . STEERING ANGLE ............................................ 34 .
INSTALLATION .................................................. 12. RACK SLIDING FORCE .................................... 34 .
Disassembly and Assembly .................................. 13 . RACK STROKE .................................................. 35 .
COMPONENT .................................................... 13 . SOCKET SWING TORQUE AND ROTATING
DISASSEMBLY .................................................. 14 . TORQUE ............................................................ 35
.
ASSEMBLY ........................................................ 14
. SOCKET AXIAL END PLAY ............................... 35 .
POWER STEERING GEAR ..................................... 15 . INNER SOCKET LENGTH ................................. 36 .

Revision: 2005 November PS-1 2006 Q45
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NGS0002J

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Steering System NGS0002K

q In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehi-
cle condition, and then check wheel alignment.
q Observe the following precautions when disassembling.

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