Nissan Pathfinder (2010 year). Manual - part 97

BR-46

< ON-VEHICLE REPAIR >

REAR DISC BRAKE

3. Remove the union bolt then disconnect the brake hose and dis-

card the copper washers.

CAUTION:

Discard the copper washers, do not reuse.

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

torque member.

5. Remove the brake pads, shims 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-45, "Exploded

View of Brake Caliper"

.

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

BR-43, "Exploded View of

Brake Pad"

.

4. Install caliper body and sliding pins, then tighten the sliding pin bolts to the specified torque. Refer to 

BR-

45, "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.

LFIA0211E

SDIA2638E

SDIA2638E

2010 Pathfinder

REAR DISC BRAKE

BR-47

< ON-VEHICLE REPAIR >

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

body, then install new copper washers and union bolt. Tighten

union bolt to specified torque. Refer to 

BR-26, "Hydraulic Cir-

cuit"

.

CAUTION:

Use new copper washers for installation.

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

BR-20, "Drain and Refill"

.

CAUTION:

• Refill with new brake fluid.

• Do not reuse drained brake fluid.

7. Install the rear wheel and tire. Refer to 

WT-49, "Rotation"

.

SFIA1137E

2010 Pathfinder

BR-48

< DISASSEMBLY AND ASSEMBLY >

BRAKE MASTER CYLINDER

DISASSEMBLY AND ASSEMBLY

BRAKE MASTER CYLINDER

Disassembly and Assembly

INFOID:0000000005260225

Brake Master Cylinder

DISASSEMBLY

CAUTION:

• Master cylinder sub-assembly cannot be disassembled.

• Remove reservoir tank only when absolutely necessary.

• While working, cover the primary piston rod with a cloth to prevent it from being damaged.

• Never use mineral oils such as kerosene, gasoline during the cleaning and assembly process.

• Do not drop parts. If a part is dropped, do not use it.

AWFIA0462GB

1.

Reservoir cap

2.

Strainer

3.

Fluid level sensor

4.

Reservoir tank

5.

Grommet

6.

Restriction washer

7.

Master cylinder sub-assembly

8.

Fluid pressure sensor

9.

O-ring

10. Brake booster

11. Pin

A.

PBC (Poly Butyl Cuprysil) grease 
or silicone based grease

B.

Brake fluid

R.

Rubber grease

Front

2010 Pathfinder

BRAKE MASTER CYLINDER

BR-49

< DISASSEMBLY AND ASSEMBLY >

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1. Secure the flange of the master cylinder sub-assembly in a vise.

CAUTION:

• Use copper plates or a cloth to cover the flange before

securing it in the vise.

• When securing the master cylinder sub-assembly in a

vise, be sure not to over-tighten the vise.

2. Remove the pin and pull the reservoir tank off of the master cylinder sub-assembly.
3. Remove the grommets from the master cylinder sub-assembly body.

CAUTION:

Do not reuse grommets.

4. Remove the restriction washer from the master cylinder sub-assembly body.

CAUTION:

Do not reuse restriction washer.

5. Remove the fluid level sensor.
6. Remove the fluid pressure sensor.

CAUTION:

Do not reuse fluid level pressure sensor.

ASSEMBLY

Assembly is in the reverse order of disassembly.

CAUTION:

• Master cylinder sub-assembly cannot be disassembled.

• Remove reservoir tank only when absolutely necessary.

• While working, cover the primary piston rod with a cloth to prevent it from being damaged.

• Never use mineral oils such as kerosene, gasoline during the cleaning and assembly process.

• Do not drop parts. If a part is dropped, do not use it.

BRA0558D

2010 Pathfinder

BR-50

< DISASSEMBLY AND ASSEMBLY >

FRONT DISC BRAKE

FRONT DISC BRAKE

Exploded View of Brake Caliper

INFOID:0000000005260226

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 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-39, "Brake Burnishing"

.

Disassembly and Assembly

INFOID:0000000005260227

DISASSEMBLY

AWFIA0467GB

1.

Sliding pin bolt

2.

Caliper body

3.

Piston seal

4.

Piston

5.

Piston boot

6.

Sliding pin

7.

Sliding pin boot

8.

Torque member bolt

9.

Torque member

10. Bleed valve

11. Cap

12. Copper washers

13. Union bolt

14. Front brake hose

R.

Rubber grease

2010 Pathfinder

FRONT DISC BRAKE

BR-51

< DISASSEMBLY AND ASSEMBLY >

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1. Remove the caliper body from the torque member. Refer to 

BR-40, "Removal and Installation of Brake

Caliper and Disc Rotor"

.

2. Remove the upper sliding pin, lower sliding pin, and sliding pin boots from the torque member.

CAUTION:

Upper sliding pin must be replaced at each service.

3. Place a wooden block as shown, and then blow air from the

union bolt hole to remove the pistons and piston boots.

WARNING:

Do not get your fingers caught between the pistons and

wooden block.

4. Remove the piston boots from the pistons.

CAUTION:

Do not reuse piston boot.

5. Remove piston seals from cylinder body, using a suitable tool.

CAUTION:

• Be careful not to damage cylinder body inner wall.

• Do not reuse piston seal.

6. Remove the bleed valve and cap.

CALIPER INSPECTION

Cylinder Body

• Check the inside surface of the cylinder body for score, rust, wear, damage or foreign materials. If any of the

above conditions are observed, replace the cylinder body.

• Minor damage from rust or foreign materials may be eliminated by polishing surface with a fine emery paper.

Replace cylinder body if necessary.

CAUTION:

• Use new brake fluid for cleaning. Do not use mineral oils such as gasoline or kerosene.

Torque Member

Check the torque member for wear, cracks, and damage. If damage or deformation is present, replace the

torque member.

Piston

Check the pistons for score, rust, wear, damage or presence of foreign materials. Replace if any of these con-

ditions are observed. 

CAUTION:

Piston sliding surface is plated, do not polish with emery paper even if rust or foreign materials are

stuck to sliding surface.

Sliding Pins, and Sliding Pin Boots

Check the sliding pins and sliding pin boots for wear, damage, and cracks. If damage or deformation is

present, replace the affected part.

CAUTION:

Upper sliding pin must be replaced at each service.

ASSEMBLY

BRB0032D

SFIA0141E

2010 Pathfinder

BR-52

< DISASSEMBLY AND ASSEMBLY >

FRONT DISC BRAKE

CAUTION:

Use NISSAN Rubber Grease when assembling.

1. Install the bleed valve and cap.
2. Apply rubber grease to the new piston seals (1) and insert the

new piston seals (1) into the groove on the cylinder body.

CAUTION:

Do not reuse piston seals.

3. Apply rubber grease to the new piston boots (1). Cover the pis-

ton end (2) with the piston boot (1), and then install the cylinder

side lip on the piston boot (1) securely into the groove on the cyl-

inder body.

CAUTION:

• Do not reuse piston boot.

• Press pistons in evenly and vary the pressing points to

prevent the cylinder inner wall from being damaged.

4. Install the pistons (1) into the cylinder body and insert the piston

boots (2) side lip into the piston groove as shown. 

CAUTION:

Press pistons in evenly and vary the pressing points to pre-

vent the cylinder inner wall from being damaged.

5. Apply rubber grease to the sliding pin boots, then install the new upper sliding pin, lower sliding pin, and

sliding pin boots on the torque member.

CAUTION:

Upper sliding pin must be replaced at each service.

6. Install the cylinder body on the torque member. Refer to 

BR-40, "Removal and Installation of Brake Cali-

per and Disc Rotor"

.

JPFIA0032ZZ

JPFIA0033ZZ

JPFIA0034ZZ

2010 Pathfinder

REAR DISC BRAKE

BR-53

< DISASSEMBLY AND ASSEMBLY >

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REAR DISC BRAKE

Exploded View of Brake Caliper

INFOID:0000000005260228

Rear 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 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-44, "Brake Burnishing"

.

Disassembly and Assembly

INFOID:0000000005260229

DISASSEMBLY

1. Remove the cylinder body. Refer to 

BR-45, "Removal and Installation of Brake Caliper and Disc Rotor"

.

2. Remove the sliding sleeves and boots from the torque member.

AWFIA0471GB

1.

Union bolt

2.

Brake hose

3.

Copper washers

4.

Sliding pin bolt

5.

Cap

6.

Bleed valve

7.

Caliper body

8.

Sliding pin

9.

Piston seal

10. Piston

11. Piston boot

12. Torque member

13. Torque member bolt

14. Sliding pin boot

R.

Rubber grease

2010 Pathfinder