Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti Q45 FY33 F50 2001-2006 Approved 2005_Q45 ps

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POWER STEERING SYSTEM

G STEERING

POWER STEERING SYSTEM
SECTION PS B

E
CONTENTS
PRECAUTIONS ......................................................... 2
. INSPECTION AFTER INSTALLATION ............... 13 . F
Precautions for Supplemental Restraint System Disassembly and Assembly ................................... 13 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DISASSEMBLY .................................................. 13 .
SIONER" ................................................................. 2
. ASSEMBLY ........................................................ 14. PS
Precautions for Steering System ............................. 2 . POWER STEERING GEAR AND LINKAGE ........... 15 .
PREPARATION .......................................................... 3
. Removal and Installation ....................................... 15 .
Special Service Tools (SST) .................................... 3 . REMOVAL .......................................................... 15
.
H
NOISE, VIBRATION AND HARSHNESS (NVH) INSTALLATION .................................................. 15 .
TROUBLESHOOTING ............................................... 5 . INSPECTION AFTER INSTALLATION ............... 16 .
NVH Troubleshooting Chart .................................... 5 . Component ............................................................ 17
.
POWER STEERING FLUID ....................................... 6 . Disassembly and Assembly ................................... 18 . I
Checking Fluid Level ............................................... 6
. DISASSEMBLY .................................................. 18 .
Checking Fluid Leakage .......................................... 6 . INSPECTION AFTER DISASSEMBLY ............... 19 .
Air Bleeding Hydraulic System ................................ 6 . ASSEMBLY ........................................................ 21. J
STEERING WHEEL ................................................... 7 . POWER STEERING OIL PUMP .............................. 26 .
On-Vehicle Inspection and Service ......................... 7 . On-Vehicle Inspection and Service ........................ 26 .
CHECKING CONDITION OF INSTALLATION ..... 7 CHECKING RELIEF OIL PRESSURE ............... 26 .
K
CHECKING STEERING WHEEL PLAY ............... 7 . Removal and Installation ....................................... 26 .
CHECKING NEUTRAL POSITION ON STEER- REMOVAL .......................................................... 26
.
ING WHEEL ......................................................... 7
. INSTALLATION .................................................. 26 .
CHECKING STEERING WHEEL TURNING Disassembly and Assembly ................................... 27 . L
FORCE ................................................................. 7
. INSPECTION BEFORE DISASSEMBLY ............ 27 .
CHECKING FRONT WHEEL TURNING ANGLE 8 ..... DISASSEMBLY .................................................. 27 .
Removal and Installation ......................................... 9. INSPECTION AFTER DISASSEMBLY ............... 28 . M
REMOVAL ............................................................ 9
. ASSEMBLY ........................................................ 29.
INSTALLATION .................................................... 9
. HYDRAULIC LINE ................................................... 31 .
STEERING COLUMN ...............................................11 . Components .......................................................... 31
.
Removal and Installation ........................................11 . Removal and Installation ....................................... 32 .
COMPONENT .....................................................11 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 33 .
REMOVAL OF LOWER SHAFT AND HALL Steering Wheel ...................................................... 33
.
COVER ...............................................................11
. Steering Angle ....................................................... 33
.
INSTALLATION OF LOWER JOINT AND HALL Steering Column .................................................... 33
.
COVER .............................................................. 12
. Steering Outer Socket and Inner Socket ............... 33 .
REMOVAL OF STEERING COLUMN ................ 12 . Steering Gear ........................................................ 34
.
INSPECTION AFTER REMOVAL ...................... 12 . Oil Pump ................................................................ 34
.
INSTALLATION OF STEERING COLUMN ........ 12 . Steering Fluid ......................................................... 34
.

Edition; 2004 May PS-1 2005 Q45
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EGS000FJ

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 EGS00087

q In case of removing steering gear, make the final tightening with grounded and unloaded vehicle condi-
tion, and then check wheel alignment.
q Observe the following precautions when disassembling.

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