Nissan Xterra. Manual - part 84

FRONT DISC BRAKE

BR-45

< UNIT DISASSEMBLY AND ASSEMBLY >

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FRONT DISC BRAKE

Exploded View of Brake Caliper

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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, do not depress brake pedal because piston will pop out. 

• 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-38, "Brake Burnishing"

.

Disassembly and Assembly

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DISASSEMBLY

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

BR-34, "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.

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 sealing washers

13. Union bolt

14. Front brake hose

R.

Rubber grease

BR-46

< UNIT DISASSEMBLY AND ASSEMBLY >

FRONT DISC BRAKE

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.

ASSEMBLY

CAUTION:

Use NISSAN Rubber Grease when assembling.
1. Install the bleed valve and cap.

BRB0032D

SFIA0141E

FRONT DISC BRAKE

BR-47

< UNIT DISASSEMBLY AND ASSEMBLY >

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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.

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

BR-34, "Removal and Installation of Brake Caliper

and Disc Rotor"

.

JPFIA0032ZZ

JPFIA0033ZZ

JPFIA0034ZZ

BR-48

< UNIT DISASSEMBLY AND ASSEMBLY >

REAR DISC BRAKE

REAR DISC BRAKE

Exploded View of Brake Caliper

INFOID:0000000009484672

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, do not depress brake pedal because piston will pop out. 

• 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-38, "Brake Burnishing"

.

Disassembly and Assembly

INFOID:0000000009484673

DISASSEMBLY

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

BR-39, "Removal and Installation of Brake

Caliper and Disc Rotor"

.

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

AWFIA0712GB

1.

Brake hose

2.

Hose connection

3.

Copper sealing washer

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