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Nissan Pathfinder (2011 year). Manual - part 89

VACUUM LINES

BR-39

< REMOVAL AND INSTALLATION >

VACUUM LINES

Removal and Installation

INFOID:0000000006245723

Brake Booster Vacuum Hose

REMOVAL

1. Disconnect brake booster hose from hose clip bracket.
2. Release the brake booster hose clamps and remove the brake booster hose.
3. Remove the brake booster vacuum check valve from the brake booster.

INSTALLATION

Installation is in the reverse order of removal.

• Insert brake booster hose onto tube and brake booster vacuum

check valve for a minimum length (A) before installing the brake

booster hose clamps.

CAUTION:

Do not use lubricating oil during installation.

WFIA0332E

Brake booster hose

Brake booster hose clamp

Brake booster vacuum check valve

Brake booster hose length
(A)

: 24 mm (0.94 in) or more

JPFIA0023ZZ

2011 Pathfinder

BR-40

< REMOVAL AND INSTALLATION >

FRONT DISC BRAKE

FRONT DISC BRAKE

Exploded View of Brake Pads

INFOID:0000000006245724

Front Brake Pads, Shims and Retainers VQ40DE

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Outer shim cover

Outer shim

Upper pad retainer

Lower pad retainer

Inner brake pad

Outer brake pad

Inner shim

Molykote AS-880N grease

Molykote 7439 grease

2011 Pathfinder

FRONT DISC BRAKE

BR-41

< REMOVAL AND INSTALLATION >

Front Brake Pads, Shims and Retainers VK56DE

WARNING:

Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne

particles or other materials.

CAUTION:

• While removing brake pads 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 caliper body. In this case, hang caliper body with a wire so as not to stretch the brake

hose.

• Do not damage the piston boot.

• If any shim is subject to serious corrosion, replace it with a new one.

• Always replace shim and shim cover as a set when replacing brake pads.

• Keep rotor free from grease and brake fluid.

• Burnish the brake contact surface after refinishing or replacing rotors, after replacing pads, or if a

soft pedal occurs at very low mileage. Refer to

BR-42, "Brake Burnishing"

Removal and Installation of Brake Pad

INFOID:0000000006245725

REMOVAL

1. Remove the front wheel and tire. Refer to

WT-50, "Adjustment"

2. Remove master cylinder reservoir cap.
3. Partially drain the brake fluid. Refer to

BR-20, "Drain and Refill"

4. Remove lower sliding pin bolt using power tool and swing the caliper body up to access the brake pads.
5. Support the caliper body with a suitable wire to avoid pulling on the front brake hose.
6. Remove the front inner and outer brake pads, shims, shim covers and retainers from the torque member.

INSTALLATION

1. Apply grease to the shims and shim covers as follows:

AWFIA0849ZZ

Inner shim cover

Inner shim

Upper pad retainer

Lower pad retainer

Inner brake pad

Outer brake pad

Outer shim

Outer shim cover

Molykote AS-880N grease

Molykote 7439 grease

2011 Pathfinder

BR-42

< REMOVAL AND INSTALLATION >

FRONT DISC BRAKE

• For vehicles equipped with VK56DE engine, apply Molykote AS-880N grease between the inner and

outer shims and shim covers, then attach shims and shim covers to the brake pads.

• For vehicles equipped with VQ40DE engine, apply Molykote AS-880N grease between the outer shim

and shim cover, then attach the shims and outer shim cover to the brake pads.

2. Attach pad retainers to torque member.

CAUTION:

When attaching pad retainer, attach it firmly so that it is

flush with torque member, as shown.

3. Apply Molykote 7439 grease to the pad retainers as shown, then

install the brake pads, shims and shim covers to the torque

member.

4. Using a suitable tool push pistons into caliper body.

CAUTION:

When pushing in piston, brake fluid returns to master cylin-

der reservoir tank. Watch the level of the brake fluid in the

reservoir tank.

5. Remove the suitable wire, then swing the caliper body down

over the brake pad assemblies.

6. Install the lower sliding pin bolt and tighten to specification.

Refer to

BR-43, "Exploded View of Brake Caliper"

7. Check the brakes for drag.
8. Inspect the brake fluid level, refill if necessary. Refer to

BR-20, "Drain and Refill"

9. Install the front wheel and tire. Refer to

WT-50, "Adjustment"

Brake Burnishing

INFOID:0000000006245726

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

AWFIA0039ZZ

2011 Pathfinder

FRONT DISC BRAKE

BR-43

< REMOVAL AND INSTALLATION >

Exploded View of Brake Caliper

INFOID:0000000006245727

Front Disc Brake Caliper

WARNING:

Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne

particles or other materials.

CAUTION:

• While removing caliper 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 caliper body. In this case, hang caliper body with a wire so as not to stretch the brake

hose.

• Do not damage the piston boot.

• If any shim is subject to serious corrosion, replace it with a new one.

• Always replace shim and shim cover as a set when replacing brake pads.

• Keep rotor free from grease and brake fluid.

• Burnish the brake contact surface after refinishing or replacing rotors, after replacing pads, or if a

soft pedal occurs at very low mileage. Refer to

BR-42, "Brake Burnishing"

Removal and Installation of Brake Caliper and Disc Rotor

INFOID:0000000006245728

REMOVAL

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.

AWFIA0467GB

Sliding pin bolt

Caliper body

Piston seal

Piston

Piston boot

Sliding pin

Sliding pin boot

Torque member bolt

Torque member

10. Bleed valve

11. Cap

12. Copper sealing washers

13. Union bolt

14. Front brake hose

Rubber grease

2011 Pathfinder

BR-44

< REMOVAL AND INSTALLATION >

FRONT DISC BRAKE

1. Remove the front wheel and tire. Refer to

WT-50, "Adjustment"

2. Remove master cylinder reservoir cap.
3. Remove the union bolt then disconnect the brake hose and dis-

card the copper sealing washers.

CAUTION:

Do not reuse copper sealing washers.

4. Remove the sliding pin bolts and remove the caliper body from

the torque member.

5. Remove the brake pads, shims, shim covers and retainers from the torque member.
6. Remove the torque member bolts and remove the torque member.
7. Remove the disc rotor. If reusing the disc rotor, apply a matching

mark as shown for installation.

CAUTION:

Put matching marks on the wheel hub assembly and disc

rotor, if reusing the disc rotor.

INSTALLATION

1. Install the disc rotor. If reusing the disc rotor, align the matching

marks as shown for installation.

CAUTION:

Align the matching marks on the wheel hub assembly and

disc rotor, if reusing the disc rotor.

2. Install torque member and tighten the torque member bolts to specification. Refer to

BR-43, "Exploded

View of Brake Caliper"

3. Install the brake pads, shims, shim covers and retainers on the torque member. Refer to

BR-40,

"Exploded View of Brake Pads"

LFIA0235E

AWFIA0788ZZ

SDIA2608E

2011 Pathfinder

FRONT DISC BRAKE

BR-45

< REMOVAL AND INSTALLATION >

4. Install caliper body and sliding pins, then tighten the sliding pin

bolts to the specified torque. Refer to

BR-43, "Exploded View of

Brake Caliper"

CAUTION:

When installing the caliper body to the torque member,

wipe any oil off of the knuckle spindle, washers and caliper

body attachment surfaces.

5. Install brake hose by aligning with the protrusion on caliper

body, then install new copper sealing washers (1) and union bolt

(A). Tighten union bolt (A) to specified torque. Refer to

BR-26,

"Hydraulic Circuit"

CAUTION:

Do not reuse copper sealing washers.

6. Refill with new brake fluid as necessary and bleed brake system. Refer to

BR-20, "Bleeding Brake Sys-

tem"

CAUTION:

• Refill with new brake fluid.

• Do not reuse drained brake fluid.

7. Install the front wheel and tire. Refer to

WT-50, "Adjustment"

AWFIA0788ZZ

AWFIA0795ZZ

2011 Pathfinder

BR-46

< REMOVAL AND INSTALLATION >

REAR DISC BRAKE

REAR DISC BRAKE

Exploded View of Brake Pad

INFOID:0000000006245729

Rear Brake Pads, Shims and Retainers

WARNING:

Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne

particles or other materials.

CAUTION:

• While removing brake pads 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 caliper body. In this case, hang caliper body with a wire so as not to stretch the brake

hose.

• Do not damage the piston boot.

• If any shim is subject to serious corrosion, replace it with a new one.

• Always replace inner and outer shims as a set when replacing brake pads.

• Keep rotor free from grease and brake fluid.

• Burnish the brake contact surface after refinishing or replacing rotors, after replacing pads, or if a

soft pedal occurs at very low mileage. Refer to

BR-47, "Brake Burnishing"

Removal and Installation of Brake Pad

INFOID:0000000006245730

REMOVAL

1. Remove the rear wheel and tire. Refer to

WT-50, "Adjustment"

2. Remove master cylinder reservoir cap.

AWFIA0596ZZ

Inner shim

Upper pad retainer

Inner brake pad

Outer brake pad

Lower pad retainer

Outer shim

Molykote 7439 grease

2011 Pathfinder

Content .. 87 88 89 90 ..