Infiniti QX56 (JA60). Manual - part 119

BR-36

< ON-VEHICLE REPAIR >

REAR DISC BRAKE

Removal and Installation of Brake Caliper and Disc Rotor

INFOID:0000000005147921

WARNING:

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

particles or other materials.

CAUTION:

• While removing cylinder body, do not depress brake pedal because piston will pop out. 

• Do not damage piston boot.

• Keep rotor free from brake fluid.

• Refill with new specified brake fluid.

• Burnish brake contact surface after refinishing or replacing rotors, after replacing pads, or it a soft

pedal occurs at very low mileage. Refer to 

BR-35, "Brake Burnishing Procedure"

.

REMOVAL

1. Remove rear wheel and tire using power tool.
2. Fasten disc rotor using wheel nut.
3. Remove brake reservoir cap.
4. Remove union bolt and cylinder body bolts, then remove cylin-

der body.

NOTE:

Discard the copper washers, do not reuse.

5. Apply matching marks to disc rotor and wheel hub assembly if

the disc rotor is to be reused, then remove disc rotor.

CAUTION:

Put matching marks on wheel hub assembly and disc rotor

if the disc rotor is to be reused. 

INSTALLATION

1. If reusing the disc rotor, use the matching marks to align disc rotor on the wheel hub assembly, then install

disc rotor using a wheel nut to hold it in place.

CAUTION:

Use matching marks on wheel hub assembly and disc rotor if the disc rotor is to be reused. 

2. Install cylinder body and tighten cylinder body bolts to specification.

CAUTION:

Before installing cylinder body to the vehicle, wipe off mating surface of cylinder body.

3. Install brake hose to cylinder body with new copper washers and

tighten union bolt to specification.

CAUTION:

• Do not reuse copper washers.

• Securely attach brake hose to projection on cylinder

body.

4. Refill with new brake fluid and bleed. Refer to 

BR-17, "Bleeding

Brake System"

.

5. Check rear disc brake for drag and correct as necessary.
6. Install rear wheel and tire. Refer to 

WT-49, "Rotation"

.

13. Sliding sleeve

B.

Brake fluid

R.

Rubber grease

M.

Molykote M-77

Front

LFIA0211E

SFIA1137E

BRAKE MASTER CYLINDER

BR-37

< DISASSEMBLY AND ASSEMBLY >

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DISASSEMBLY AND ASSEMBLY

BRAKE MASTER CYLINDER

Disassembly and Assembly

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DISASSEMBLY

CAUTION:

• Master cylinder assembly cannot be disassembled.

• Do not drop parts. If a part is dropped, do not use it.
1. Pull the reservoir tank off the master cylinder assembly.
2. Remove the grommets from master cylinder assembly and discard the grommets.

CAUTION:

Discard the grommets, do not reuse.

3. Remove the fluid level sensor from the reservoir tank.
4. Remove the front and rear pressure sensors and discard.

CAUTION:

Discard the front and rear pressure sensors, do not reuse.

ASSEMBLY

CAUTION:

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

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

1.

Reservoir cap

2.

Fluid level sensor

3.

Grommet

4.

Master cylinder assembly

5.

Front pressure sensor

6.

Rear pressure sensor

7.

Seal

8.

Reservoir tank

B.

Brake fluid

R.

Rubber grease

AWFIA0415GB

BR-38

< DISASSEMBLY AND ASSEMBLY >

BRAKE MASTER CYLINDER

1. Apply brake fluid or rubber grease to the new grommets, then insert the new grommets into the master

cylinder assembly.

CAUTION:

Do not reuse the grommets.

2. Install the reservoir tank onto the master cylinder assembly.
3. Install the fluid level sensor on the reservoir tank.
4. Install the new front and rear pressure sensors.

CAUTION:

Do not reuse the front and rear pressure sensors.

FRONT DISC BRAKE

BR-39

< DISASSEMBLY AND ASSEMBLY >

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FRONT DISC BRAKE

Disassembly and Assembly

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DISASSEMBLY

1. Remove sliding pin bolts, and then remove the pads, shims, shim cover, and pad retainers from the torque

member.

2. Remove sliding pins and sliding pin boots from torque member.
3. Place a wooden block as shown, and blow air from union bolt

hole to remove pistons and piston boots.

CAUTION:

Do not get your fingers caught in piston.

1.

Sliding pin bolt

2.

Bleed valve 

3.

Cap

4.

Union bolt

5.

Brake hose 

6.

Copper washer

7.

Torque member bolt

8.

Sliding pin boot

9.

Torque member

10. Washers

11. Bushing

12. Sliding pin

13. Piston boot

14. Piston

15. Piston seal

16. Cylinder body

Brake fluid

1: Molykote M-77 grease

2: Rubber grease

AWFIA0573GB

BRB0032D