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Nissan Juke F15. Manual - part 88

BR-12

< PERIODIC MAINTENANCE >

BRAKE FLUID

BRAKE FLUID

Inspection

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BRAKE FLUID LEVEL

• Check that the fluid level in the reservoir tank is within the specified

range (MAX – MIN lines).

• Visually check for any brake fluid leakage around the reservoir

tank.

• Check the brake system for any leakage if the fluid level is

extremely low (lower than MIN).

• Check the brake system for fluid leakage if the warning lamp

remains illuminated even after the parking brake is released.

• Check the reservoir tank for the mixing of foreign matter (e.g. dust)

and oils other than brake fluid.

BRAKE LINE

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

parts.

2. Depress the brake pedal with a force of 785 N (80 kg, 176 lb)

and hold down the pedal for approximately 5 seconds with the

engine running. Check for any fluid leakage.

CAUTION:

Retighten the applicable connection to the specified torque

and repair any abnormal (damaged, worn or deformed) part

if any brake fluid leakage is present.

Draining

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CAUTION:

• Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it

off immediately and wash with water if it gets on a painted surface. For brake component parts,

never wash them with water.

• Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) har-

ness connector or the battery negative terminal before performing work.

1. Connect a vinyl tube to the bleed valve.
2. Depress the brake pedal and loosen the bleeder valve to gradu-

ally discharge brake fluid.

Refilling

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CAUTION:

• Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) har-

ness connector or the battery negative terminal before performing work.

SFIA2634J

SBR389C

BRA0007D

BRAKE FLUID

BR-13

< PERIODIC MAINTENANCE >

• Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it

off immediately and wash with water if it gets on a painted surface. For brake component parts,

never wash them with water.

1. Check that there is no foreign material in the reservoir tank, and refill with new brake fluid.

CAUTION:

• Never reuse drained brake fluid.

• Never allow foreign matter (e.g. dust) and oils other than brake fluid to enter the reservoir tank.

2. Loosen the bleeder valve, slowly depress the brake pedal to the full stroke, and then release the pedal.

Repeat this operation at intervals of 2 or 3 seconds until new brake fluid is discharged. Then close the

bleeder valve with the brake pedal depressed. Repeat the same work on each wheel.

3. Perform the air bleeding. Refer to

BR-13, "Bleeding Brake System"

Bleeding Brake System

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CAUTION:

• Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) har-

ness connector or the battery negative terminal before performing the work.

• Monitor the fluid level in the reservoir tank while performing the air bleeding

• Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it

off immediately and wash with water if it gets on a painted surface. For brake component parts,

never wash them with water.

1. Check that there is no foreign material in the reservoir tank, and refill with new brake fluid.

CAUTION:

• Never reuse drained brake fluid.

• Never allow oils other than brake fluid to enter the reservoir tank.

2. Connect a vinyl tube to the bleeder valve of the rear right brake.
3. Fully depress the brake pedal 4 to 5 times.
4. Loosen the bleeder valve and bleed air with the brake pedal depressed, and then quickly tighten the

bleeder valve.

5. Repeat steps 3 and 4 until all of the air is out of the brake line.
6. Tighten the bleeder valve to the specified torque.

• Front disc brake: Refer to

BR-53, "BRAKE CALIPER ASSEMBLY : Exploded View"

• Rear disc brake: Refer to

BR-63, "BRAKE CALIPER ASSEMBLY : Exploded View"

7. Perform steps 2 to 6. Occasionally fill with the brake fluid in order to keep it in the reservoir tank at least

half of MAX line. Bleed air in the following order: rear right brake

→ front left brake → rear left brake →

and front right brake in order.

8. Check that the fluid level in the reservoir tank is within the specified range after air bleeding. Refer to

BR-

12, "Inspection"

9. Check each item of brake pedal. Adjust it if the measurement value is not the standard. Refer to

BR-9,

"Inspection and Adjustment"

BR-14

< PERIODIC MAINTENANCE >

BRAKE MASTER CYLINDER

BRAKE MASTER CYLINDER

Inspection

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FLUID LEAK

Check for brake fluid leakage from the master cylinder mounting face, reservoir tank mounting face and brake

tube connections.

BRAKE BOOSTER

BR-15

< PERIODIC MAINTENANCE >

BRAKE BOOSTER

Inspection

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OPERATION

Depress the brake pedal several times at 5-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 a

normal phenomenon due to the brake system operation.

AIR TIGHT

1. Run the engine at idle for 1 minute to apply vacuum to the brake booster, and stop the engine.
2. Depress the brake pedal several times at 5-second intervals until the accumulated vacuum is released to

atmospheric pressure. Check that the clearance between brake pedal and dash lower panel gradually

increases each time the brake pedal is depressed when performing this operation.

3. 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 sec-

onds or more.

Content .. 86 87 88 89 ..