Nissan Pathfinder. Manual - part 225

BR-8

< BASIC INSPECTION >

BRAKE FLUID

BRAKE FLUID

Inspection

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BRAKE FLUID LEVEL

• Make sure that the brake fluid level in the reservoir sub tank is

between the MAX and MIN lines.

• Visually check around the reservoir sub tank and reservoir tank for

brake fluid leakage.

• If the brake fluid level is excessively low, check the brake system

for leakage.

• If brake warning lamp remains illuminated after parking brake

pedal is released, check the brake system for brake fluid leakage.

BRAKE LINE

1. Check brake line (tubes and hoses) for cracks, deterioration or other damage. Replace any damaged

parts.

2. Check for brake fluid leakage by fully depressing brake pedal

while engine is running.

CAUTION:

If brake fluid leakage occurs around joints, retighten or

replace damaged parts as necessary.

ALFIA0249ZZ

SBR389C

BRAKE MASTER CYLINDER

BR-9

< BASIC INSPECTION >

C

D

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A

B

BR

N

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BRAKE MASTER CYLINDER

Inspection

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Check for brake fluid leakage at the following areas:

• Master cylinder mounting face

• Reservoir tank mounting face

• Reservoir sub tank mounting face

• Brake tube and brake tube connections

• Brake hose and brake hose connections

If any brake fluid leakage is found, repair as necessary.

BR-10

< BASIC INSPECTION >

BRAKE BOOSTER

BRAKE BOOSTER

Inspection

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Operation

Depress the brake pedal several times at five second intervals with

the engine stopped. Start the engine with the brake pedal fully

depressed. Check that the clearance between brake pedal and dash

lower panel decreases.

NOTE:

A slight impact with a small click may be felt on the pedal when the

brake pedal is fully depressed. This is normal brake system opera-

tion.

Vacuum Inspection

Idle the engine for one minute to apply vacuum to the brake booster.

Stop the engine. Depress the brake pedal several times at five sec-

ond intervals until the accumulated vacuum is released to atmo-

spheric pressure. Check that the clearance between brake pedal

and dash lower panel gradually increases (A 

→ B → C) each time

the brake pedal is depressed during this operation.

Depress the brake pedal with the engine running. Then stop the

engine while holding down the brake pedal. Check that the brake

pedal stroke does not change after holding down the brake pedal for

30 seconds or more.

NOTE:

A slight impact with a small click may be felt on the pedal when the

brake pedal is fully depressed. This is normal brake system opera-

tion.

BRA0037D

JPFIA0043ZZ

JPFIA0044ZZ

FRONT DISC BRAKE

BR-11

< BASIC INSPECTION >

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FRONT DISC BRAKE

BRAKE PAD
BRAKE PAD : Inspection

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Check brake pad wear thickness from an inspection hole (A) on cyl-

inder body. Check using a scale if necessary. 

DISC ROTOR
DISC ROTOR : Inspection

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APPEARANCE

Check surface of disc rotor for uneven wear, cracks or damage. Replace if any abnormal conditions exist.

RUNOUT

1. Check the wheel bearing axial end play before the inspection. Refer to 

FAX-6, "Inspection"

.

2. Secure the disc rotor to the wheel hub and bearing with wheel

nuts at two wheel nut locations.

3. Inspect the runout with a dial gauge, measured at 10 mm (0.39

in) inside the disc edge.

4. Find the installation position with a minimum runout by shifting

the disc rotor-to-wheel hub and bearing installation position by

one hole at a time if the runout exceeds the limit value.

5. Refinish the disc rotor if the runout is outside the limit even after

performing the above operation. When refinishing, use Tool.

CAUTION:

• Check in advance that the thickness of the disc rotor is wear thickness + 0.3 mm (0.012 in) or

more.

• If the thickness is less than wear thickness + 0.3 mm (0.012 in), replace the disc rotor.

THICKNESS

Wear thickness

: Refer to 

BR-49, "Front Disc Brake"

.

AWFIA0891ZZ

Runout

: Refer to 

BR-49, "Front Disc Brake"

.

Tool number

: 38-PFM92-GYX/5 ( — )

Wear thickness

: Refer to 

BR-49, "Front Disc Brake"

.

SBR019B