Infiniti F50. Manual — part 255
BR-1
BRAKE SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION
A
B
BR
BRAKE SYSTEM
PRECAUTIONS . . . . . . . . . . . . . . .. 3
PREPARATION . . . . . . . . . . . . . . ... 4
Commercial Service Tools . . . . . . . . . . 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING . . . . . . . . . . . . 5
NVH Troubleshooting Chart . . . . . . . . . . 5
BRAKE PEDAL . . . . . . . . . . . . . . .. 6
Inspection and Adjustment . . . . . . . . . ... 6
Removal and Installation . . . . . . . . . . .. 7
BRAKE FLUID . . . . . . . . . . . . . . . 9
BRAKE PIPING AND HOSE . . . . . . . . . .11
Hydraulic Circuit . . . . . . . . . . . . . ..11
Front Brake Piping and Hose . . . . . . . . ..11
REMOVAL . . . . . . . . . . . . . . . 11
INSTALLATION . . . . . . . . . . . . . 11
Rear Brake Piping and Hose . . . . . . . . .. 12
REMOVAL . . . . . . . . . . . . . . ... 12
INSTALLATION . . . . . . . . . . . . ... 12
Inspection . . . . . . . . . . . . . . . ... 12
BRAKE MASTER CYLINDER . . . . . . . . .. 13
Components . . . . . . . . . . . . . . ... 13
Removal and Installation . . . . . . . . . . 13
REMOVAL . . . . . . . . . . . . . . ... 13
INSTALLATION . . . . . . . . . . . . ... 13
Disassembly and Assembly . . . . . . . . . 14
BRAKE BOOSTER . . . . . . . . . . . . ... 21
On-Vehicle Service . . . . . . . . . . . . . 21
OPERATING CHECK . . . . . . . . . . .. 21
AIRTIGHT CHECK . . . . . . . . . . . .. 21
Removal and Installation . . . . . . . . . . 21
FRONT DISC BRAKE . . . . . . . . . . . ... 23
Components . . . . . . . . . . . . . . ... 23
Inspection . . . . . . . . . . . . . . . ... 24
PAD WEAR INSPECTION . . . . . . . . ... 24
Pad Replacement . . . . . . . . . . . . ... 24
REMOVAL . . . . . . . . . . . . . . ... 24
INSTALLATION . . . . . . . . . . . . ... 25
Caliper Removal and Installation . . . . . . . 26
REMOVAL . . . . . . . . . . . . . . ... 26
INSTALLATION . . . . . . . . . . . . ... 26
Caliper Disassembly and Assembly . . . . . ... 26
Brake Burnishing Procedure . . . . . . . . ... 29
REAR DISC BRAKE . . . . . . . . . . . . . 30
Component . . . . . . . . . . . . . . . . 30
Inspection . . . . . . . . . . . . . . . ... 31
PAD THICKNESS . . . . . . . . . . . . 31
Pad Replacement . . . . . . . . . . . . ... 31
REMOVAL . . . . . . . . . . . . . . ... 31
INSTALLATION . . . . . . . . . . . . ... 32
BR-2
INSTALLATION . . . . . . . . . . . . . 32
Caliper Disassembly and Assembly . . . . . ... 33
PRECAUTIONS
BR-3
C
D
E
G
H
I
J
K
L
M
A
B
BR
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS00281
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:
●
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.
●
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.
●
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 Brake System
EFS000NL
●
Recommended fluid is brake fluid “DOT 3”.
●
Never reuse drained brake fluid.
●
Be careful not to splash brake fluid on painted areas.
●
To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.
●
Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of hydraulic system.
●
Use flare nut wrench when removing and installing brake tube.
●
Always torque brake lines when installing.
●
Before working, turn ignition switch OFF and disconnect con-
nectors for VDC actuator or battery terminals.
●
Burnish 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-29, "Brake Burnishing Procedure"
WARNING:
●
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
SBR686C
BR-4
PREPARATION
PREPARATION
PFP:00002
Commercial Service Tools
EFS000NK
Tool name
Description
1.Flare nut crowfoot
a: 10 mm (0.39 in)
2.Torque wrench
Removing and installing each brake
piping
Power tool
Removing front and rear caliper
assembly
S-NT360
PBIC0190E
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