Nissan Juke (2012 year). Service Repair Manual - part 21

 

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Nissan Juke (2012 year). Service Repair Manual - part 21

 

 

BRAKE BOOSTER

BR-13

< PERIODIC MAINTENANCE >

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BRAKE BOOSTER

Inspection

INFOID:0000000007579941

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.

Revision: 2011 October

2012 JUKE

BR-14

< PERIODIC MAINTENANCE >

FRONT DISC BRAKE

FRONT DISC BRAKE

BRAKE PAD

BRAKE PAD : Inspection and Adjustment

INFOID:0000000007579942

INSPECTION

Check brake pad wear thickness from an inspection hole on cylinder
body. Check using a scale if necessary. 

ADJUSTMENT

Burnish contact surfaces between disc rotor and brake pads according to the following procedure after refin-
ishing or replacing brake pads, or if a soft pedal occurs at very low mileage.

CAUTION:

• Be careful of vehicle speed because the brake does not operate firmly/securely until pads and disc

rotor are securely fitted.

• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.

Drive vehicle on straight, flat road.

2.

Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.

3.

Drive without depressing brake for a few minutes to cool the brake.

4.

Repeat steps 1 to 3 until pad and disc rotor are securely fitted.

DISC ROTOR

DISC ROTOR : Inspection and Adjustment

INFOID:0000000007579943

INSPECTION

Appearance

Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace it if necessary. Refer to

FAX-8, "Removal and Installation"

.

Runout

1.

Fix the disc rotor to the wheel hub and bearing assembly with
wheel nuts (2 points at least).

2.

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

FAX-6, "Inspection"

.

3.

Inspect the runout with a dial indicator to measure at 10 mm
(0.39 in) inside the disc edge.

4.

Find the installation position that has a minimum runout by shift-
ing the disc rotor-to-wheel hub and bearing assembly installation
position by one hole at a time if the runout exceeds the limit value.

• Refinish the disc rotor if the runout is outside the limit even after performing the above operation. [When

refinishing, use the Pro-Cut PEM On-Car brake Lathe (Tool No. 38-PFM90.5) or equivalent.]

CAUTION:

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

Wear thickness

: Refer to 

BR-58, "Front Disc Brake"

.

BRA0010D

Runout (with it attached 
to the vehicle)

: Refer to 

BR-58, "Front Disc 

Brake"

.

SBR019B

Revision: 2011 October

2012 JUKE

FRONT DISC BRAKE

BR-15

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

FAX-

8, "Removal and Installation"

.

Thickness

Check the thickness of the disc rotor using a micrometer. Replace
the disc rotor if the thickness is below the wear limit. Refer to 

FAX-8,

"Removal and Installation"

.

ADJUSTMENT

Burnish contact surfaces between disc rotors and brake pads according to the following procedure after refin-
ishing or replacing disc rotor, or if a soft pedal occurs at very low mileage.

CAUTION:

• Be careful of vehicle speed because the brake does not operate firmly/securely until pad and disc

rotor are securely fitted.

• Only perform this procedure under safe road and traffic conditions. Use extreme caution.

1.

Drive vehicle on straight, flat road.

2.

Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.

3.

Drive without depressing brake for a few minutes to cool the brake.

4.

Repeat steps 1 to 3 until pad and disc rotor are securely fitted.

Wear thickness

: Refer to 

BR-58, "Front Disc Brake"

.

Wear thickness

: Refer to 

BR-58, "Front Disc 

Brake"

.

SBR020B

Revision: 2011 October

2012 JUKE

BR-16

< PERIODIC MAINTENANCE >

REAR DISC BRAKE

REAR DISC BRAKE

BRAKE PAD

BRAKE PAD : Inspection and Adjustment

INFOID:0000000007579944

INSPECTION

Check brake pad wear thickness from an inspection hole on cylinder
body. Check using a scale if necessary. 

ADJUSTMENT

Burnish contact surfaces between disc rotor and brake pads according to the following procedure after refin-
ishing or replacing brake pads, or if a soft pedal occurs at very low mileage.

CAUTION:

• Be careful of vehicle speed because the brake does not operate firmly/securely until pads and disc

rotor are securely fitted.

• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.

Drive vehicle on straight, flat road.

2.

Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.

3.

Drive without depressing brake for a few minutes to cool the brake.

4.

Repeat steps 1 to 3 until pad and disc rotor are securely fitted.

DISC ROTOR

DISC ROTOR : Inspection and Adjustment

INFOID:0000000007579945

INSPECTION

Appearance

Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace it if necessary.
• 2WD: Refer to 

RAX-5, "Removal and Installation"

.

• AWD: Refer to 

RAX-14, "Removal and Installation"

.

Runout

1.

Fix the disc rotor to the wheel hub and bearing assembly with
wheel nuts (2 points at least).

2.

Check the wheel bearing axial end play before the inspection.
• 2WD: Refer to 

RAX-4, "Inspection"

.

• AWD: Refer to 

RAX-12, "Inspection"

.

3.

Inspect the runout with a dial indicator to measure at 10 mm
(0.39 in) inside the disc edge.

4.

Find the installation position that has a minimum runout by shift-
ing the disc rotor-to-wheel hub and bearing assembly installation position by one hole at a time if the
runout exceeds the limit value.

• Refinish the disc rotor if the runout is outside the limit even after performing the above operation. [When

refinishing, use the Pro-Cut PEM On-Car brake Lathe (Tool No. 38-PFM90.5) or equivalent.]

CAUTION:

Wear thickness

: Refer to 

BR-58, "Rear Disc Brake"

.

BRA0010D

Runout (with it attached 
to the vehicle)

: Refer to 

BR-58, "Rear Disc 

Brake"

.

SBR019B

Revision: 2011 October

2012 JUKE

REAR DISC BRAKE

BR-17

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• 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.
- 2WD: Refer to 

RAX-5, "Removal and Installation"

.

- AWD: Refer to 

RAX-14, "Removal and Installation"

.

Thickness

Check the thickness of the disc rotor using a micrometer. Replace
the disc rotor if the thickness is below the wear limit.
• 2WD: Refer to 

RAX-5, "Removal and Installation"

.

• AWD: Refer to 

RAX-14, "Removal and Installation"

.

ADJUSTMENT

Burnish contact surfaces between disc rotors and brake pads according to the following procedure after refin-
ishing or replacing disc rotor, or if a soft pedal occurs at very low mileage.

CAUTION:

• Be careful of vehicle speed because the brake does not operate firmly/securely until pad and disc

rotor are securely fitted.

• Only perform this procedure under safe road and traffic conditions. Use extreme caution.

1.

Drive vehicle on straight, flat road.

2.

Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.

3.

Drive without depressing brake for a few minutes to cool the brake.

4.

Repeat steps 1 to 3 until pad and disc rotor are securely fitted.

Wear thickness

: Refer to 

BR-58, "Rear Disc Brake"

.

Wear thickness

: Refer to 

BR-58, "Rear Disc 

Brake"

.

SBR020B

Revision: 2011 October

2012 JUKE

BR-18

< REMOVAL AND INSTALLATION >

BRAKE PEDAL

REMOVAL AND INSTALLATION

BRAKE PEDAL

Exploded View

INFOID:0000000007579946

Removal and Installation

INFOID:0000000007579947

REMOVAL

1.

Remove instrument lower panel. Refer to 

IP-12, "Removal and Installation"

.

2.

Disconnect the stop lamp switch and the brake pedal position switch harness connectors.

3.

Rotate the stop lamp switch and the brake pedal position switch
(1) counter clockwise to remove.

4.

Disconnect the accelerator pedal harness connector and har-
ness clip.

1.

Clevis pin

2.

Brake pedal assembly

3.

Brake pedal pad

4.

Brake pedal position switch

5.

Clip

6.

Stop lamp switch

7.

Snap pin

: Apply multi-purpose grease.

: N·m (kg-m, ft-lb)

JSFIA0457GB

JPFIA0815ZZ

Revision: 2011 October

2012 JUKE

BRAKE PEDAL

BR-19

< REMOVAL AND INSTALLATION >

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5.

Remove snap pin (1) and clevis pin (2) from clevis (3) of brake
booster.

6.

Remove the steering member stay (1).

7.

Remove the brake pedal assembly.

CAUTION:

Hold the brake booster and master cylinder assembly so as
not to drop out or contact them other parts.

8.

Remove accelerator pedal from brake pedal assembly. Refer to

ACC-3, "Removal and Installation"

.

9.

Perform inspection after removal. Refer to 

BR-19, "Inspection

and Adjustment"

.

INSTALLATION

Note the following, and install in the reverse order of removal.
• Apply the multi-purpose grease to the clevis pin and the mating faces. (Not necessary if grease has been

already applied)
NOTE:
The clevis pin may be inserted in either direction.

• Perform adjustment after installation. Refer to 

BR-19, "Inspection and Adjustment"

.

Inspection and Adjustment

INFOID:0000000007579948

INSPECTION AFTER REMOVAL

• Check for the following items and replace the brake pedal assembly if necessary.
- Check the brake pedal upper rivet (made by aluminum) (A) for

deformation.

- Check the brake pedal for bend, damage, and cracks on the

welded parts.

- Check the lapping length (D) of sub-bracket (B) and slide plate (C).

• Check clevis pin and plastic stopper (A) for damage and deforma-

tion. If any is found, replace clevis pin.

JPFIA0816ZZ

JSFIA0458ZZ

D

: 6.5 mm (0.256 in) or more

JSFIA0459ZZ

PFIA0756J

Revision: 2011 October

2012 JUKE

BR-20

< REMOVAL AND INSTALLATION >

BRAKE PEDAL

ADJUSTMENT AFTER INSTALLATION

• Adjust each item of brake pedal after installing the brake pedal assembly to the vehicle. Refer to 

BR-7,

"Inspection and Adjustment"

.

• Perform the release position learning of the accelerator pedal. Refer to 

EC-130, "Work Procedure"

.

Revision: 2011 October

2012 JUKE

BRAKE PIPING

BR-21

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BRAKE PIPING

FRONT

FRONT : Exploded View

INFOID:0000000007579949

FRONT : Hydraulic Piping

INFOID:0000000007579950

2WD

1.

Brake tube

2.

ABS actuator and electric unit (con-
trol unit)

3.

Connector

4.

Connector bracket

5.

Master cylinder assembly

6.

Brake booster

7.

Lock plate

8.

Brake hose

9.

Union bolt

10. Copper washer

A.

To rear brake tube

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

: Always replace after every disassembly.

: Indicates that the part is connected at points with same symbol in actual vehicle.

JSFIA0638GB

Revision: 2011 October

2012 JUKE

BR-22

< REMOVAL AND INSTALLATION >

BRAKE PIPING

AWD

FRONT : Removal and Installation

INFOID:0000000007579951

REMOVAL

1.

ABS actuator and electric unit (con-
trol unit)

2.

Front disc brake

3.

Master cylinder assembly

4.

Brake booster

5.

Connector

6.

Rear disc brake

A.

Brake tube

B.

Brake hose

: Flare nut

: Union bolt

JPFIA0650ZZ

1.

ABS actuator and electric unit (con-
trol unit)

2.

Front disc brake

3.

Master cylinder assembly

4.

Brake booster

5.

Connector

6.

Rear disc brake

A.

Brake tube

B.

Brake hose

: Flare nut

: Union bolt

JSFIA0639ZZ

Revision: 2011 October

2012 JUKE

BRAKE PIPING

BR-23

< REMOVAL AND INSTALLATION >

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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.

• Never depress the brake pedal while removing the brake hose or brake tube. If this is not complied

with, brake fluid may splash.

1.

Remove tires with power tool.

2.

Drain brake fluid. Refer to 

BR-10, "Draining"

.

3.

Loosen the flare nut (1) with a flare nut wrench (A) and separate
the brake tube (2) from the brake hose (3).

CAUTION:

• Never scratch the flare nut and the brake tube.
• Never bend sharply, twist or strongly pull out the brake

hoses and tubes.

• Cover open end of brake tubes and hoses when discon-

necting to prevent entrance of dirt.

4.

Remove the union bolt (1) and copper washers (2), and remove
the brake hose (3) from the brake caliper assembly.

5.

Remove the lock plate (4) and remove the brake hose.

INSTALLATION

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.

• Never depress the brake pedal while removing the brake hose or brake tube. If this is not complied

with, brake fluid may splash.

1.

Assemble the union bolt (1) and the copper washer (2) to the
brake hose.

CAUTION:

Never reuse the copper washer.

2.

Align the brake hose pin (A) with the brake caliper assembly
projection (B), and tighten the union bolt (1) to the specified
torque.

JPFIA0847ZZ

JPFIA0819ZZ

JPFIA0820ZZ

Revision: 2011 October

2012 JUKE

BR-24

< REMOVAL AND INSTALLATION >

BRAKE PIPING

3.

Install the brake tube (2) to the brake hose (1), temporarily
tighten the flare nut (3) by hand until it does not rotate further,
and fix the brake hose to the bracket (5) with the lock plate (4).

CAUTION:

Check that all brake hoses and brake tubes are not twisted
and bent.

4.

Tighten the flare nut to the specified torque with a crowfoot (A)
and torque wrench (B).

CAUTION:

Never scratch the flare nut and the brake tube.

5.

Refill with new brake fluid and perform the air bleeding. Refer to

BR-11, "Bleeding Brake System"

.

CAUTION:

Never reuse drained brake fluid.

6.

Install tires. Refer to 

WT-43, "Removal and Installation"

.

7.

Perform inspection after installation. Refer to 

BR-24, "FRONT :

Inspection"

.

FRONT : Inspection

INFOID:0000000007579952

INSPECTION AFTER INSTALLATION

1.

Check the brake hoses and tubes for the following: no scratches; no twist and deformation; no interfer-
ence with other components when steering the steering wheel; no looseness at connections.

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.

REAR

REAR : Exploded View

INFOID:0000000007579953

2WD

JPFIA0821ZZ

JPFIA0001ZZ

Revision: 2011 October

2012 JUKE

BRAKE PIPING

BR-25

< REMOVAL AND INSTALLATION >

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AWD

1.

Brake tube

2.

Brake hose A

3.

Lock plate

4.

Brake hose bracket

5.

Union bolt

6.

Brake hose B

7.

Copper washer

A.

To connector

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

: Always replace after every disassembly.

: Indicates that the part is connected at points with same symbol in actual vehicle.

JSFIA0640GB

Revision: 2011 October

2012 JUKE

BR-26

< REMOVAL AND INSTALLATION >

BRAKE PIPING

REAR : Hydraulic Piping

INFOID:0000000007579954

2WD

1.

Brake tube

2.

Brake hose A

3.

Lock plate

4.

Brake hose bracket

5.

Brake hose B

6.

Union bolt

7.

Copper washer

A.

To connector

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

: Always replace after every disassembly.

: Indicates that the part is connected at points with same symbol in actual vehicle.

JSFIA0468GB

Revision: 2011 October

2012 JUKE

BRAKE PIPING

BR-27

< REMOVAL AND INSTALLATION >

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AWD

REAR : Removal and Installation

INFOID:0000000007579955

REMOVAL

1.

ABS actuator and electric unit (con-
trol unit)

2.

Front disc brake

3.

Master cylinder assembly

4.

Brake booster

5.

Connector

6.

Rear disc brake

A.

Brake tube

B.

Brake hose

: Flare nut

: Union bolt

JPFIA0650ZZ

1.

ABS actuator and electric unit (con-
trol unit)

2.

Front disc brake

3.

Master cylinder assembly

4.

Brake booster

5.

Connector

6.

Rear disc brake

A.

Brake tube

B.

Brake hose

: Flare nut

: Union bolt

JSFIA0639ZZ

Revision: 2011 October

2012 JUKE

BR-28

< REMOVAL AND INSTALLATION >

BRAKE PIPING

2WD

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.

• Never depress the brake pedal while removing the brake hose or brake tube. If this is not complied

with, brake fluid may splash.

1.

Remove tires with power tool.

2.

Drain brake fluid. Refer to 

BR-10, "Draining"

.

3.

Loosen the flare nut (1) with a flare nut wrench (A) and separate
the brake tube (2) from the brake hose A (3).

CAUTION:

• Never scratch the flare nut and the brake tube.
• Never bend sharply, twist or strongly pull out the brake

hoses and tubes.

• Cover open end of brake tubes and hoses when discon-

necting to prevent entrance of dirt.

4.

Remove the lock plate (4) and remove the brake hose A.

5.

Loosen the flare nut (1) with a flare nut wrench (A) and separate
the brake tube (2) from the hose B (3).

CAUTION:

• Never scratch the flare nut and the brake tube.
• Never bend sharply, twist or strongly pull out the brake

hoses and tubes.

• Cover open end of brake tubes and hoses when discon-

necting to prevent entrance of dirt.

6.

Remove the lock plate (4) from brake hose bracket (5).

7.

Remove the union bolt (1) and copper washers (2), and remove
the brake hose B (3) from the brake caliper assembly.

AWD

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.

• Never depress the brake pedal while removing the brake hose or brake tube. If this is not complied

with, brake fluid may splash.

1.

Remove tires with power tool.

2.

Drain brake fluid. Refer to 

BR-10, "Draining"

.

JPFIA0848ZZ

JSFIA0470ZZ

JSFIA0471ZZ

Revision: 2011 October

2012 JUKE

 

 

 

 

 

 

 

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