Nissan Xterra. Manual - part 80

BRAKE BOOSTER

BR-29

< REMOVAL AND INSTALLATION >

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REMOVAL 

1. Remove the ABS actuator and electric unit (control unit). Refer to 

BRC-113, "Removal and Installation"

(type 1), 

BRC-234, "Removal and Installation"

 (type2).

2. Remove the brake piping from the brake master cylinder.
3. Remove the brake master cylinder and O-ring. Refer to 

BR-26, "Removal and Installation"

.

CAUTION:

Do not reuse O-ring.

4. Remove brake booster vacuum hose from the brake booster. Refer to 

BR-31, "Removal and Installation"

.

5. Remove instrument lower panel LH. Refer to 

IP-14, "Removal and Installation"

.

6. Remove the brake pedal clevis pin (2) and snap pin (1) from

inside the vehicle. 

7. Remove the brake booster and brake pedal assembly nuts and discard.

CAUTION:

Do not reuse the nuts.

8. Remove brake booster assembly from dash panel.

INSTALLATION

1. Loosen the lock nut to adjust the input rod so that length (B) is

within the specified value.

2. After adjusting input rod length (A), temporarily tighten the lock

nut (1) and install the booster assembly to the dash panel.

• Install gaskets and spacer block between the booster assem-

bly and the dash panel.

3. Connect the input rod using the brake pedal clevis pin (2) and

snap pin (1) from inside the vehicle. 

4. Install the brake booster using new nuts.

CAUTION:

Do not reuse the brake booster and brake pedal assembly nuts.

5. Install the brake master cylinder and new O-ring. Refer to 

BR-26, "Removal and Installation"

.

CAUTION:

Do not reuse O-ring.

6. Install the brake piping to the brake master cylinder. Refer to 

BR-12, "Hydraulic Circuit"

.

JPFIA0019ZZ

Input rod installation 
length (B)

: Refer to 

BR-52, "Brake 

Booster"

.

WFIA0382E

JPFIA0019ZZ

BR-30

< REMOVAL AND INSTALLATION >

BRAKE BOOSTER

7. Connect the brake booster vacuum hose and check valve to the brake booster.
8. Adjust the brake pedal height. Refer to 

BR-15, "Inspection and Adjustment"

.

9. Install instrument lower panel LH. Refer to 

IP-14, "Removal and Installation"

.

10. Tighten the input rod lock nut to specification.
11. Install the ABS actuator and electric unit (control unit). Refer to 

BRC-113, "Removal and Installation"

 (type

1), 

BRC-234, "Removal and Installation"

 (type2).

12. Refill with new brake fluid and bleed the brake system. Refer to 

BR-17, "Bleeding Brake System"

.

VACUUM LINES

BR-31

< REMOVAL AND INSTALLATION >

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VACUUM LINES

Removal and Installation

INFOID:0000000009484658

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 check valve from the brake booster, if necessary.

INSTALLATION

Installation is in the reverse order of removal.

• Insert vacuum 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

1.

Brake booster hose

2.

Brake booster hose clamp

3.

Brake booster vacuum check valve

Brake booster vacuum 
hose length (A)

: 24 mm (0.94 in) or more

JPFIA0023ZZ

BR-32

< REMOVAL AND INSTALLATION >

FRONT DISC BRAKE

FRONT DISC BRAKE

Exploded View of Brake Pads

INFOID:0000000009484659

Front 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, do not 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 rotors and pads 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-33, "Brake Burnishing"

.

Removal and Installation of Brake Pad

INFOID:0000000009484660

REMOVAL

1. Remove the front wheel and tire using power tool. Refer to 

WT-48, "Adjustment"

.

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

BR-17, "Drain and Refill"

.

4. Remove lower caliper sliding pin bolt using power tool, and swing caliper body up to access brake pads.
5. Support the caliper body with a suitable wire to avoid pulling on the front brake hose.

AWFIA1054ZZ

1.

Inner shim

2.

Pad return spring

3.

Upper pad retainer

4.

Lower pad retainer

5.

Inner brake pad

6.

Outer brake pad

7.

Outer shim

8.

Outer shim cover

N.

Molykote 7439 grease