Nissan Xterra. Manual - part 75

BRAKE BOOSTER

BR-9

< BASIC INSPECTION >

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BRAKE BOOSTER

Inspection

INFOID:0000000009484640

OPERATION

With engine stopped, change vacuum to atmospheric pressure by

depressing brake pedal several times. Then with brake pedal fully

depressed, start engine and when vacuum pressure reaches the

standard, make sure that clearance between brake pedal and floor

panel decreases.

AIR TIGHT

• Run engine at idle for approximately 1 minute, and stop it after

applying vacuum to booster. Depress brake pedal normally to

change vacuum to atmospheric pressure. Make sure that distance

at intervals of 5 seconds between brake pedal and floor panel

gradually increases.

• Depress brake pedal while engine is running, and stop engine with pedal depressed. The pedal stroke

should not change after holding pedal down for 30 seconds.

BRA0037D

SBR365AA

BR-10

< BASIC INSPECTION >

VACUUM LINES

VACUUM LINES

Inspection

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VISUAL INSPECTION

Check for improper assembly, damage and deterioration. Replace as necessary.

CHECK VALVE INSPECTION

Airtightness Inspection

Use a suitable tool to check the vacuum check valve. Connect to

brake booster side of check valve.

Check valve specification

: Refer to 

BR-52, "Check 

Valve"

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LFIA0217E

BRAKE MASTER CYLINDER

BR-11

< BASIC INSPECTION >

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BRAKE MASTER CYLINDER

On Board Inspection

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LEAK INSPECTION

Check for leaks at master cylinder to brake booster attachment point, reservoir tank, and brake tube connec-

tions.

BR-12

< BASIC INSPECTION >

BRAKE TUBE AND HOSE

BRAKE TUBE AND HOSE

Hydraulic Circuit

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Type 1 and Type 2 - Four Channel Hydraulic System

AWFIA0789ZZ

1.

Actuator

2.

Master cylinder

3.

Brake booster

4.

Connector

5.

Axle mounted connector
9.3 N·m (0.95 kg-m, 82 in-lb)

A.

Union bolt (front caliper)
18.2 N·m (1.9 kg-m, 13 ft-lb)

B.

Flare nut M12
18.2 N·m (1.9 kg-m, 13 ft-lb)

C.

Flare nut M10
13.0 N·m (1.3 kg-m, 10 ft-lb)

D.

Flare nut M10
16.2 N·m (1.7 kg-m, 12 ft-lb) 

E.

Flare nut M10
16.2 N·m (1.7 kg-m, 12 ft-lb)

F.

Hose connection (rear caliper)
18.2 N·m (1.9 kg-m, 13 ft-lb)

=

Hose

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Tube