Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti QX56 JA60 2004-2005 Approved 2004_QX56 br
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F BRAKES
A
SECTION
BRAKE SYSTEM
BR B
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3
. INSTALLATION .................................................. 16 . BR
Precautions for Supplemental Restraint System Disassembly and Assembly ................................... 16 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DISASSEMBLY .................................................. 16 .
SIONER" ................................................................. 3
. ASSEMBLY ........................................................ 16 . G
Precautions for Brake System ................................. 3 . BRAKE BOOSTER .................................................. 17 .
PREPARATION .......................................................... 4
. On-Vehicle Service ................................................ 17 .
Special Service Tool ................................................ 4
. OPERATING CHECK ......................................... 17 .
H
Commercial Service Tools ....................................... 4 . AIRTIGHT CHECK ............................................. 17 .
NOISE, VIBRATION, AND HARSHNESS (NVH) Removal and Installation ....................................... 18 .
TROUBLESHOOTING ............................................... 5 . REMOVAL .......................................................... 18 .
NVH Troubleshooting Chart .................................... 5 . INSPECTION AFTER REMOVAL ...................... 18 . I
BRAKE PEDAL ......................................................... 6
. INSTALLATION .................................................. 19 .
Inspection and Adjustment ...................................... 6 . VACUUM LINES ...................................................... 20 .
INSPECTION ....................................................... 6
. Removal and Installation ....................................... 20 . J
ADJUSTMENT ..................................................... 7. Inspection .............................................................. 20
.
Removal and Installation ......................................... 8. VISUAL INSPECTION ........................................ 20 .
REMOVAL ............................................................ 8
. CHECK VALVE INSPECTION ............................ 20 .
K
INSPECTION AFTER REMOVAL ........................ 9 . FRONT DISC BRAKE .............................................. 21 .
INSTALLATION .................................................... 9
. On-vehicle Inspection ............................................ 21 .
BRAKE FLUID ......................................................... 10
. PAD WEAR INSPECTION .................................. 21 .
On-board Inspection .............................................. 10
. Components .......................................................... 21 . L
LEVEL CHECK .................................................. 10 . Removal and Installation of Brake Pad ................. 22 .
Drain and Refill ...................................................... 10
. REMOVAL .......................................................... 22 .
Bleeding Brake System ..........................................11 . INSTALLATION .................................................. 22 . M
BRAKE PIPING AND HOSE ................................... 12 . Removal and Installation of Brake Caliper and Disc
Hydraulic Circuit .................................................... 12
. Rotor ...................................................................... 22
.
Removal and Installation of Front Brake Hose ...... 12 . REMOVAL .......................................................... 22 .
REMOVAL .......................................................... 12
. INSTALLATION .................................................. 23 .
INSTALLATION .................................................. 13. Disassembly and Assembly of Brake Caliper
Removal and Installation of Rear Brake Hose ...... 13 . Assembly ............................................................... 23
.
REMOVAL .......................................................... 13
. DISASSEMBLY .................................................. 23 .
INSTALLATION .................................................. 13. CALIPER INSPECTION ..................................... 24 .
Inspection After Installation ................................... 14. ASSEMBLY ........................................................ 24 .
BRAKE MASTER CYLINDER ................................. 15 . DISC ROTOR INSPECTION .............................. 25 .
On-board Inspection .............................................. 15
. BRAKE BURNISHING PROCEDURE ................ 25 .
LEAK INSPECTION ........................................... 15 . REAR DISC BRAKE ................................................ 27 .
Removal and Installation ....................................... 15 . On-vehicle Inspection ............................................ 27 .
REMOVAL .......................................................... 15
. PAD WEAR INSPECTION .................................. 27 .
Components .......................................................... 27 .
Removal and Installation of Brake Pad ................. 28 .
Revision: August 2007 BR-1 2004 QX56
REMOVAL .......................................................... 28
. SERVICE DATA AND SPECIFICATIONS (SDS) .....32 .
INSTALLATION ................................................... 28. General Specifications ...........................................32.
Removal and Installation of Brake Caliper Assembly Brake Pedal ...........................................................32
.
and Disc Rotor ....................................................... 28
. Brake Booster ........................................................32
.
REMOVAL .......................................................... 28
. Check Valve ...........................................................32
.
INSTALLATION ................................................... 28. Front Disc Brake ....................................................32
.
Disassembly and Assembly of Brake Caliper Rear Disc Brake .....................................................33
.
Assembly ............................................................... 29
.
DISASSEMBLY .................................................. 29 .
CALIPER INSPECTION ..................................... 29 .
ASSEMBLY ........................................................ 30
.
DISC ROTOR INSPECTION .............................. 30 .
BRAKE BURNISHING PROCEDURE ................ 31 .
Revision: August 2007 BR-2 2004 QX56
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EFS003P3
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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: D
G 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. E
G 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. BR
G 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.
G
Precautions for Brake System EFS0062U
G Refer to MA-10, "RECOMMENDED FLUIDS AND LUBRICANTS" for recommended brake fluid.
H
G Do not reuse drained brake fluid.
G Be careful not to splash brake fluid on painted areas.
G To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid. I
G Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
G Use flare nut wrench when removing and installing brake tube.
G Always check tightening torque when installing brake lines. J
G Before working, turn ignition switch to OFF and disconnect con-
nectors for ABS actuator and electric unit (control unit) or battery
terminals. K
G Burnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage. Refer to BR-25, "BRAKE BURNISH- L
ING PROCEDURE" .
WARNING: SBR686C
G Clean brake pads and shoes with a waste cloth, then wipe
with a dust collector. M
Revision: August 2007 BR-3 2004 QX56
PREPARATION
PREPARATION PFP:00002
Special Service Tool EFS0062T
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description
(Kent-Moore No.)
Tool name
-- Measuring brake pedal height.
(J-46532)
Brake and clutch pedal height measure-
ment tool
LFIA0227E
Commercial Service Tools EFS003P5
Tool name Description
1. Flare nut crowfoot Removing and installing brake piping.
2. Torque wrench a: 10 mm (0.39 in) / 12 mm (0.47 in)
S-NT360
Power tool Removing bolts, nuts, and screws.
PBIC0190E
PBIC0191E
Revision: August 2007 BR-4 2004 QX56
Symptom
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