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ps


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POWER STEERING SYSTEM


G STEERING

                                                                                                                                                                  A




                                                                       POWER STEERING SYSTEM
                                                                                                     SECTION                    PS                                B



                                                                                                                                                                  C


                                                                                                                                                                  D


                                                                                                                                                                  E
                                                                  CONTENTS
PRECAUTIONS ......................................................... 2  .           INSPECTION AFTER INSTALLATION ............... 12                    .        F
 Precautions for Supplemental Restraint System                                     Disassembly and Assembly ................................... 12       .
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                             DISASSEMBLY .................................................. 12   .
 SIONER" ................................................................. 2
                                                                         .           INSPECTION AFTER DISASSEMBLY ............... 13                     .        PS
 Precautions for Battery Service ............................... 2       .           ASSEMBLY ........................................................ 13.
 Precautions for Steering System ............................. 2         .        POWER STEERING GEAR AND LINKAGE ........... 14                         .
PREPARATION .......................................................... 3 .         Removal and Installation ....................................... 14   .
                                                                                                                                                                  H
 Special Service Tools (SST) .................................... 3      .           REMOVAL .......................................................... 14
                                                                                                                                                         .
 Commercial Service Tools ....................................... 4      .           INSTALLATION .................................................. 15  .
NOISE, VIBRATION AND HARSHNESS (NVH)                                              POWER STEERING GEAR ..................................... 17           .
TROUBLESHOOTING ............................................... 5        .         Component ............................................................ 17
                                                                                                                                                         .         I
 NVH Troubleshooting Chart .................................... 5        .         Disassembly and Assembly ................................... 18       .
POWER STEERING FLUID ....................................... 6           .           DISASSEMBLY .................................................. 18   .
 Checking Fluid Level ............................................... 6  .           INSPECTION AFTER DISASSEMBLY ............... 19                     .         J
 Checking Fluid Leakage .......................................... 6     .           ASSEMBLY ........................................................ 20.
 Air Bleeding Hydraulic System ................................ 6        .        POWER STEERING OIL PUMP .............................. 26              .
STEERING WHEEL ................................................... 8     .         On-Vehicle Inspection and Service ........................ 26         .
                                                                                                                                                                  K
 On-Vehicle Inspection and Service ......................... 8           .           CHECKING RELIEF OIL PRESSURE ............... 26                     .
   CHECKING CONDITION OF INSTALLATION ..... 8                                      Removal and Installation ....................................... 26   .
   CHECKING STEERING WHEEL PLAY ............... 8                        .           REMOVAL .......................................................... 26
                                                                                                                                                         .
   CHECKING NEUTRAL POSITION ON STEER-                                               INSTALLATION .................................................. 27  .        L
   ING WHEEL ......................................................... 8 .         Disassembly and Assembly ................................... 27       .
   CHECKING STEERING WHEEL TURNING                                                   INSPECTION BEFORE DISASSEMBLY ............ 28                       .
   FORCE ................................................................. 8
                                                                         .           DISASSEMBLY .................................................. 28   .        M
   CHECKING FRONT WHEEL TURNING ANGLE 8                                  .....       INSPECTION AFTER DISASSEMBLY ............... 28                     .
 Removal and Installation ......................................... 9    .           ASSEMBLY ........................................................ 29.
STEERING COLUMN .............................................. 10        .        HYDRAULIC LINE ................................................... 31  .
 Removal and Installation ....................................... 10     .         Removal and Installation ....................................... 31   .
   REMOVAL OF LOWER JOINT AND HOLE                                                SERVICE DATA AND SPECIFICATIONS (SDS) ..... 32                         .
   COVER .............................................................. 10
                                                                         .         Steering Wheel ...................................................... 32
                                                                                                                                                         .
   INSTALLATION OF LOWER JOINT AND HOLE                                            Steering Angle ....................................................... 32
                                                                                                                                                         .
   COVER ...............................................................11
                                                                         .         Steering Column .................................................... 32
                                                                                                                                                         .
   REMOVAL OF STEERING COLUMN ASSEM-                                               Steering Linkage .................................................... 32
                                                                                                                                                         .
   BLY ......................................................................11
                                                                         .         Steering Gear ........................................................ 33
                                                                                                                                                         .
   INSPECTION AFTER REMOVAL .......................11                    .         Oil Pump ................................................................ 33
                                                                                                                                                         .
   INSTALLATION OF STEERING COLUMN                                                 Steering Fluid ......................................................... 33
                                                                                                                                                         .
   ASSEMBLY ........................................................ 12  .




                                                                             PS-1
                                              PRECAUTIONS

PRECAUTIONS                                                         PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                           AGS000DZ


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 Battery Service                                                                               AGS000K5


Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Precautions for Steering System                                                                               AGS000E0


q   Before disassembly, thoroughly clean the outside of the unit.
q   Disassembly should be done in a clean work area. It is important to prevent the internal parts from becom-
    ing contaminated by dirt or other foreign matter.
q   For easier and proper assembly, place disassembled parts in order on a parts rack.
q   Use nylon cloth or paper towels to clean the parts; common shop rags can leave lint that might interfere
    with their operation.
q   Before inspection or reassembly, carefully clean all parts in order on a parts rack.
q   Before assembly, apply a coat of recommended Genuine NISSAN PSF or equivalent to hydraulic parts.
    Petroleum jelly may be applied to O-rings and seals. Do not use any grease.
q   Replace all gaskets, seals and O-rings. Avoid damaging O-rings, seals and gaskets during installation.
    Perform functional tests whenever designated.




                                                      PS-2
                                            PREPARATION

PREPARATION                                                                                                   PFP:00002
                                                                                                                             A
Special Service Tools (SST)                                                                                       AGS000E1


The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
    Tool number
                                                                                                                             B
     (Kent - Moore No.)                                                Description
    Tool name
                                                                                                                             C
    HT2520000
    (J25730-A)
    Ball joint remover
                                                                       Removing outer socket ball joint                      D
    a: 33 mm (1.30 in)
    b: 50 mm (1.97 in)
    r: 11.5 mm (0.453 in)
                                                           NT546
                                                                                                                             E
    ST3127S000
    (J25765 - A)
    Preload gauge
     1.GG9103000                                                                                                             F
       (J25765 - A)
       Torque wrench                                                   Inspecting of sliding torque, steering torque
     2.HT62940000                                                      , and rotating torque for ball joint                  PS
       (   



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