Nissan Pathfinder (2008 year). Manual — part 82
PRECAUTIONS
BR-3
< PRECAUTION >
C
D
E
G
H
I
J
K
L
M
A
B
BR
N
O
P
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001297388
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 SR 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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR 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 har-
ness connectors.
Precaution for Brake System
INFOID:0000000001297389
• Recommended fluid is Genuine NISSAN Super Heavy Duty Brake Fluid or equivalent. Refer to
• Do not 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.
• Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
• Use flare nut wrench when removing and installing brake tube.
• Always check tightening torque when installing brake lines.
• Before working, turn ignition switch to OFF and disconnect con-
nectors for ABS actuator and electric unit (control unit) or battery
negative terminal.
• 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
.
WARNING:
• Clean brake pads and shoes with a waste cloth, then wipe
with a dust collector.
SBR686C
BR-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000001297390
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tool
INFOID:0000000001297391
Tool number
(Kent-Moore No.)
Tool name
Description
—
(J-46532)
Brake and clutch pedal height measure-
ment tool
Measuring brake pedal height
LFIA0227E
Tool name
Description
1. Flare nut crowfoot
2. Torque wrench
Removing and installing each brake pip-
ing
a: 10 mm (0.39 in) / 12 mm (0.47 in)
Power tool
Removing nuts, bolts and screws
S-NT360
PBIC0190E
PBIC0191E
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
BR-5
< FUNCTION DIAGNOSIS >
C
D
E
G
H
I
J
K
L
M
A
B
BR
N
O
P
FUNCTION DIAGNOSIS
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000001297392
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
,
,
,
,
,
,
,
,
(2F
1
3
10),
(2
S1
33
0),
(2S1
35
0)
(R18
0A),
(M
20
5)
(R20
0),
(R
23
0)
(F
AX
),
(RAX)
(FSU),
(RSU)
Possible cause and
SUSPECTED PARTS
Pad
s
-
da
ma
ge
d
Pad
s
- un
ev
en
wea
r
Shi
m
s
da
ma
ge
d
Roto
r im
ba
la
nc
e
Roto
r da
ma
ge
Rotor runout
Roto
r de
fo
rma
tio
n
Roto
r de
fle
c
tio
n
Rotor rust
Roto
r th
ic
kn
es
s
va
riat
ion
PROP
ELLER SHAFT
FRON
T FINA
L DRIVE
REAR FINA
L DRIVE
DR
IVESHAFT
SUSPENSION
TIRES
AND ROA
D
WHEEL
STEERING
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
Shimmy, Shudder
×
×
×
×
×
×
×
×
×
×
×
BR-6
< FUNCTION DIAGNOSIS >
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
Hydraulic Circuit
INFOID:0000000001297393
CAUTION:
• All hoses and piping (tubes) must be free from excessive bending, twisting and pulling.
• Make sure there is no interference with other parts when turning steering both clockwise and coun-
terclockwise.
• The brake piping is an important safety part. If a brake fluid leak is detected, always disassemble the
parts. Replace applicable part with a new one, if necessary.
• Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• Do not bend or twist brake hose sharply, or strongly pull it.
• When removing components, cover connections so that no dirt, dust, or other foreign matter gets in.
• Refill with new brake fluid. Refer to
MA-10, "Fluids and Lubricants"
• Do not reuse drained brake fluid.
1.
Actuator
2.
Master Cylinder
3.
Brake Booster
●
Flare nut
■
Union Bolt
AWFIA0068ZZ
INSPECTION AND ADJUSTMENT
BR-7
< BASIC INSPECTION >
C
D
E
G
H
I
J
K
L
M
A
B
BR
N
O
P
BASIC INSPECTION
INSPECTION AND ADJUSTMENT
Brake Fluid Level Inspection
INFOID:0000000001297394
LEVEL CHECK
• Check that the brake fluid level in the reservoir tank is within speci-
fication, between the MAX and MIN lines as shown.
• Visually check around reservoir tank for fluid leaks.
• If fluid level is excessively low, check brake system for leaks.
• If brake warning lamp remains illuminated after the parking brake
pedal is released, check the brake system for any brake fluid
leaks.
Brake Booster Inspection
INFOID:0000000001297422
VISUAL INSPECTION
Check for improper assembly, damage and deterioration.
CHECK VALVE INSPECTION
Airtightness Inspection
Use a suitable vacuum pump to check. Connect to brake booster
side of check valve.
Pad Wear Inspection
INFOID:0000000001297451
PAD WEAR INSPECTION
• Inspect the thickness of pad through cylinder body inspection hole.
Use a scale for inspection if necessary. Refer to
(Rear).
Brake Pedal Inspection and Adjustment
INFOID:0000000001297429
INSPECTION
LFIA0234E
Check
valve
specifi-
cation
: Vacuum decrease should be within 1.3 kPa
(10 mmHg, 0.39 inHg) for 15 seconds under
a vacuum of – 66.7 kPa (– 500 mmHg, – 19.69
inHg)
LFIA0217E
BRA0010D
BR-8
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
1.
Inspect the brake pedal free height "H" from dash lower panel
using Tool.
2.
Adjust the height referring to the following specifications.
CAUTION:
The adjustable pedal must be in the frontmost (closest to
the floor) position for pedal height measurement.
Unit: mm (in)
ADJUSTMENT
1.
Loosen the stop lamp switch and ASCD cancel switch by turning 45
°
counterclockwise.
2.
Loosen lock nut on the input rod, then turn input rod to adjust the
pedal to specified height. When finished adjusting, tighten lock
nut.
CAUTION:
Make sure that the screw portion of the end of input rod is
located inside the clevis.
3.
With the pedal pulled up and held by hand, press the stop lamp
switch and the ASCD cancel switch in until threaded ends con-
tact pedal arm.
4.
With the threaded ends of the stop lamp switch and ASCD cancel switch contacting the pedal arm, turn
the switches 45
°
clockwise to lock in place.
CAUTION:
Make sure that the gap "C
1
or C
2
" between the rubber stops and switch ends are within specifica-
tion.
5.
Check the pedal play.
CAUTION:
Make sure that the stop lamp goes off when the pedal is released.
6.
Start the engine and check the height of the brake pedal when depressing it.
Tool
:
—
(J-46532)
WFIA0160E
Free height "H"
: 182.1 - 192.1 (7.17 - 7.56)
Depressed pedal height ("D" [under a force of 490 N (50 kg, 110
lb) with engine running]
: 105 - 115 (4.13 - 4.53)
Clearance between pedal stopper and threaded end of stop lamp
switch and ASCD cancel switch "C
1
" or "C
2
"
: 0.74 - 1.96 (0.029 - 0.077)
Pedal play "A"
: 3 - 11 (0.12 - 0.43)
Lock nut
: 18.6 N·m (1.9 kg-m, 14 ft-lb)
SBR229E
BRAKE FLUID
BR-9
< ON-VEHICLE MAINTENANCE >
C
D
E
G
H
I
J
K
L
M
A
B
BR
N
O
P
ON-VEHICLE MAINTENANCE
BRAKE FLUID
Drain and Refill
INFOID:0000000001297460
CAUTION:
• Refill with new brake fluid. Refer to
MA-10, "Fluids and Lubricants"
• Do not reuse drained brake fluid.
• Do not let brake fluid splash on the painted surfaces of the body. This might damage the paint, so
when splashing it, immediately wipe off the area and wash away with water.
• Before servicing, disconnect battery negative cable.
1.
Connect a vinyl tube to each bleed valve.
2.
Depress brake pedal, loosen each bleed valve, and gradually
remove brake fluid.
3.
Make sure there is no foreign material in reservoir tank, and refill
with new brake fluid.
4.
Rest foot on brake pedal. Loosen bleed valve. Slowly depress
pedal until it stops. Tighten bleed valve. Release brake pedal.
Repeat this process a few times, then pause to add new brake
fluid to master cylinder. Continue until new brake fluid flows out.
Bleed air from brake system. Refer to
Bleeding Brake System
INFOID:0000000001297461
CAUTION:
While bleeding, monitor the master cylinder brake fluid level.
1.
Turn ignition switch OFF and disconnect battery negative cable.
2.
Connect a vinyl tube to the rear right bleed valve.
3.
Fully depress brake pedal 4 to 5 times.
4.
With brake pedal depressed, loosen bleed valve to let the air out, and then tighten it immediately.
5.
Repeat steps 3 and 4 until no more air comes out.
6.
Tighten bleed valve to the specified torque. Refer to
(front disc brake),
(rear disc brake).
7.
Perform steps 2 to 6 at each wheel, with master cylinder reservoir tank filled at least half way, bleed air
from the front left, rear left, and front right bleed valve, in that order.
SBR419C
SBR995
BR-10
< ON-VEHICLE MAINTENANCE >
FRONT DISC BRAKE
FRONT DISC BRAKE
Component
INFOID:0000000001297474
Front Disc Brake Caliper and Pads
WARNING:
Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne
particles or other materials.
CAUTION:
AWFIA0077GB
1.
Sliding pin bolt
2.
Cylinder body
3.
Piston seal
4.
Piston
5.
Piston boot
6.
Sliding pin
7.
Sliding pin boot
8.
Torque member bolt
9.
Torque member
10.
Upper pad retainer
11.
Outer shim
12. Inner brake pad
13.
Outer brake pad
14. Lower pad retainer
15. Shim cover
16.
Bleed valve
17. Cap
18. Copper washers
19.
Union bolt
20. Brake hose
21. Pad return spring
B.
Brake fluid
R.
Rubber grease
⇐
: Front
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст