Nissan Pathfinder (2008 year). Manual — part 83
FRONT DISC BRAKE
BR-11
< ON-VEHICLE MAINTENANCE >
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• While removing cylinder body never depress brake pedal because piston will pop out.
• It is not necessary to remove bolts on torque member and brake hose except for disassembly or
replacement of cylinder body. In this case, hang cylinder body with a wire so as not to stretch brake
hose.
• Do not damage piston boot.
• Burnish brake contact surface after refinishing or replacing rotors, after replacing pads, or if a soft
pedal occurs at very low mileage. Refer to
.
Removal and Installation of Brake Pad
INFOID:0000000001297475
REMOVAL
1.
Remove wheel and tire using power tool.
2.
Remove master cylinder reservoir cap.
3.
Remove lower sliding pin bolt using power tool.
4.
Suspend cylinder body with a wire and remove pad return spring, pads, shim, shim covers, and retainers
from torque member.
INSTALLATION
1.
Apply Molykote M-77 grease between outer brake pad plate and shim, then attach shim and shim covers
to brake pads. Refer to
MA-10, "Fluids and Lubricants"
2.
Attach pad retainer to torque member, then install brake pad,
shims and pad return spring.
CAUTION:
When attaching pad retainer, attach it firmly so that it is
flush with torque member, as shown.
3.
Using a suitable tool push pistons into cylinder body.
NOTE:
Using a disc brake piston tool (commercial service tool), etc.,
makes it easier to push pistons into cylinder body.
CAUTION:
By pushing in piston, brake fluid returns to master cylinder
reservoir tank. Watch the level of the surface of reservoir
tank.
4.
Remove wire then swing cylinder body down over brake pad assemblies.
5.
Install lower sliding pin bolt and tighten to specification. Refer to
.
6.
Check brake for drag.
7.
Inspect fluid level, then install master cylinder reservoir cap.
8.
Install wheel and tire. Refer to
.
Brake Burnishing
INFOID:0000000001297656
Burnish brake contact surface according to the following procedure after refinishing or replacing rotors, after
replacing pads, or if a soft pedal occurs at very low mileage.
CAUTION:
Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.
Drive the vehicle on a straight smooth road at 50 km/h (31 MPH).
2.
Use medium brake pedal/foot effort to bring the vehicle to a complete stop from 50 km/h (31 MPH). Adjust
brake pedal/foot pressure such that vehicle stopping time equals 3 to 5 seconds.
3.
To cool brake system, drive the vehicle at 50 km/h (31 MPH) for 1 minute without stopping.
4.
Repeat steps 1 to 3, 10 times or more to complete the burnishing procedure.
PFIA0273E
BR-12
< ON-VEHICLE MAINTENANCE >
REAR DISC BRAKE
REAR DISC BRAKE
Component
INFOID:0000000001297480
Rear 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.
AWFIA0038GB
1.
Union bolt
2.
Brake hose
3.
Copper washers
4.
Sliding pin bolt
5.
Cap
6.
Bleed valve
7.
Cylinder body
8.
Sliding pin
9.
Piston seal
10.
Piston
11. Piston boot
12. Torque member
13.
Torque member bolt
14. Pad retainer
15. Outer shim
16.
Outer brake pad
17. Inner brake pad
18. Inner shim
A.
Molykote 7439 Refer to
cation areas
B.
Brake fluid
C.
Molykote 77
R.
Rubber grease
⇐
: Front
REAR DISC BRAKE
BR-13
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CAUTION:
• While removing cylinder body, never depress brake pedal because piston will pop out.
• It is not necessary to remove bolts on torque member and brake hose except for disassembly or
replacement of cylinder body. In this case, hang cylinder body with a wire so as not to stretch brake
hose.
• Do not damage piston boot.
• Burnish brake contact surface after refinishing or replacing rotors, after replacing pads, or it a soft
pedal occurs at very low mileage. Refer to
.
Removal and Installation of Brake Pad
INFOID:0000000001297481
REMOVAL
1.
Remove wheel and tire using power tool.
2.
Remove master cylinder reservoir cap.
3.
Remove lower sliding pin bolt using power tool.
4.
Suspend cylinder body with a wire and remove pads, shims and retainers from torque member.
INSTALLATION
1.
Apply Molykote M-77 grease between outer brake pad plate and shim, then attach shims to brake pads.
Refer to
MA-10, "Fluids and Lubricants"
.
2.
Apply Molykote 7439 to pad retainers (A) as shown
3.
Attach pad retainer to torque member, then install brake pad and
shim assemblies.
CAUTION:
When attaching pad retainer, attach it firmly so that it is
flush with torque member, as shown.
4.
Using a suitable tool push piston into cylinder body.
NOTE:
Using a disc brake piston tool (commercial service tool), etc., makes it easier to push piston into cylinder
body.
CAUTION:
By pushing in piston, brake fluid returns to master cylinder reservoir tank. Watch the level of the
surface of reservoir tank.
5.
Remove wire then swing cylinder body down over brake pad assemblies.
6.
Install lower sliding pin bolt and tighten to specification. Refer to
.
7.
Check brake for drag.
8.
Inspect fluid level, then install master cylinder reservoir cap.
9.
Install wheel and tire. Refer to
.
AWFIA0039ZZ
PFIA0273E
BR-14
< ON-VEHICLE MAINTENANCE >
REAR DISC BRAKE
Brake Burnishing
INFOID:0000000001297484
Burnish brake contact surface according to the following procedure after refinishing or replacing rotors, after
replacing pads, or if a soft pedal occurs at very low mileage.
CAUTION:
Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.
Drive the vehicle on a straight smooth road at 50 km/h (31 MPH).
2.
Use medium brake pedal/foot effort to bring the vehicle to a complete stop from 50 km/h (31 MPH). Adjust
brake pedal/foot pressure such that vehicle stopping time equals 3 to 5 seconds.
3.
To cool brake system, drive the vehicle at 50 km/h (31 MPH) for 1 minute without stopping.
4.
Repeat steps 1 to 3, 10 times or more to complete the burnishing procedure.
BRAKE PEDAL
BR-15
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
BRAKE PEDAL
Removal and Installation
INFOID:0000000001297430
COMPONENTS
Adjustable Brake Pedal
LFIA0231E
1.
Brake pedal assembly
2.
Snap pin
3.
Clip
4.
Stop lamp switch
5.
Pedal pad
6.
Clevis pin
7.
ASCD cancel switch
BR-16
< REMOVAL AND INSTALLATION >
BRAKE PEDAL
Non-adjustable Brake Pedal
REMOVAL FOR ADJUSTABLE BRAKE PEDAL
WARNING:
Do not deform the brake tube.
CAUTION:
• Before removal and installation the accelerator and brake pedals must be in the forward most posi-
tion (closest to the floor). This is to align the base position of the accelerator and brake pedals.
• Do not disassemble the brake pedal adjusting mechanism.
• Avoid damage from dropping the brake pedal assembly during handling.
• Keep the brake pedal assembly away from water.
1.
Remove the lower driver instrument panel. Refer to
IP-10, "Removal and Installation"
.
2.
Remove the stop lamp switch and ASCD cancel switch from the pedal assembly.
3.
Disconnect the adjustable brake pedal cable from the adjustable
pedal.
• Release the two lock tabs, then pull the adjustable brake pedal
cable to disconnect it from the adjustable brake pedal.
4.
Remove snap pin and clevis pin from the clevis of the brake booster.
LFIA0232E
1.
Brake pedal assembly
2.
Snap pin
3.
Clip
4.
Stop lamp switch
5.
Pedal pad
6.
Clevis pin
7.
ASCD cancel switch
LFIA0233E
BRAKE PEDAL
BR-17
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5.
Remove nuts and the pedal assembly.
• Temporarily install the nuts by hand to support the booster.
CAUTION:
• Before removal and installation the accelerator and brake pedals must be in the frontmost posi-
tion (closest to the floor). This is to align the base position of the accelerator and brake pedals.
• Do not disassemble the brake pedal adjusting mechanism.
• Avoid damage from dropping the brake pedal assembly during handling.
• Keep the brake pedal assembly away from water.
REMOVAL FOR NON-ADJUSTABLE BRAKE PEDAL
WARNING:
Do not deform the brake tube.
CAUTION:
• Do not disassemble the brake pedal assembly.
• Avoid damage from dropping the brake pedal assembly during handling.
• Keep the brake pedal assembly away from water.
1.
Remove the lower driver instrument panel. Refer to
IP-10, "Removal and Installation"
.
2.
Remove the stop lamp switch and ASCD cancel switch from the pedal assembly.
3.
Remove snap pin and clevis pin from the clevis of the brake booster.
4.
Remove nuts and the pedal assembly.
• Temporarily install the nuts by hand to support the booster.
INSPECTION AFTER REMOVAL
Check brake pedal for following items.
• Crack or deformation of clevis pin stopper
• Clevis pin deformation
• Crack of any welded portion
• Brake pedal bend
INSTALLATION
1.
Installation is in the reverse order of removal.
• Check the brake pedal for smooth operation. There should be no binding or sticking when applying or
releasing the brake pedal.
• On models equipped with adjustable brake pedal, check the adjustable feature for smooth operation.
There should be no binding or sticking when adjusting the brake pedal forward and backward.
• After installing the brake pedal assembly in the vehicle, be sure to adjust it. Refer to
.
SBR997
BR-18
< REMOVAL AND INSTALLATION >
BRAKE PIPING AND HOSE
BRAKE PIPING AND HOSE
Removal and Installation of Front Brake Piping and Brake Hose
INFOID:0000000001297435
REMOVAL
1.
Drain brake fluid. Refer to
.
2.
Remove brake tube from brake hose, using a suitable tool.
3.
Remove lock plate and brake hose from bracket.
4.
Remove union bolt and then remove brake hose from caliper assembly.
INSTALLATION
1.
Install brake hose by aligning with the protrusion on caliper
assembly, and tighten union bolt to the specified torque. Refer to
NOTE:
Do not reuse copper washer.
2.
Insert brake hose end through bracket, then secure it to bracket
with lock plate.
3.
Install brake tube to brake hose, then tighten flare nut to the
specified torque using a suitable tool.
4.
Refill brake fluid and bleed air. Refer to
Removal and Installation of Rear Brake Piping and Brake Hose
INFOID:0000000001297436
REMOVAL
1.
Drain brake fluid. Refer to
.
2.
Remove brake tube from brake hose, using a suitable tool.
3.
Remove lock plate and brake hose from bracket.
4.
Remove union bolt, and then remove brake hose from caliper assembly.
INSTALLATION
1.
Install brake hose by aligning with the protrusion on caliper
assembly, and tighten union bolt to the specified torque. Refer to
NOTE:
Do not reuse copper washer.
LFIA0235E
LFIA0236E
LFIA0237E
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