Nissan Leaf. Manual - part 297

 

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Nissan Leaf. Manual - part 297

 

 

BRAKE PIPING

BR-509

< REMOVAL AND INSTALLATION >

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4. Tighten the flare nut to the specified torque with a crowfoot (A)

and torque wrench (B).

CAUTION:

Do not scratch the flare nut and the brake tube.

5. Install the brake tube B   and brake tube A   to the brake hose

B  , temporarily tighten the flare nut   by hand until it does not

rotate further, and fix the brake hose B to the bracket with the
lock plate  .

CAUTION:

To prevent leakage of brake fluid, check that all brake hoses

and brake tubes are not twisted and bent.

6. Tighten the flare nut to the specified torque with a crowfoot (A)

and torque wrench (B).

CAUTION:

Do not scratch the flare nut and the brake tube.

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

BR-494, "Bleeding Brake System"

.

CAUTION:

Do not reuse drained brake fluid.

8. Install wheel and tire. Refer to 

WT-45, "Removal and Installa-

tion"

.

9. Perform inspection after installation. Refer to 

BR-509, "REAR :

Inspection"

.

REAR : Inspection

INFOID:0000000010123137

INSPECTION AFTER INSTALLATION

1. Check the brake hoses and tubes for the following: no scratches; no twist and deformation; 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 set the vehicle to READY. 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.

JPFIA0001ZZ

JSFIA1065ZZ

JPFIA0001ZZ

BR-510

< REMOVAL AND INSTALLATION >

ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT

ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT

Exploded View

INFOID:0000000010123138

Removal and installation

INFOID:0000000010123139

REMOVAL

CAUTION:

• Do not disassemble the electrically-driven intelligent brake unit.

• Do not 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, do

not wash them with water.

• Do not depress brake pedal. While removing the brake tube. If this is not complied with, brake fluid

may splash.

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.
1. Perform inspection before removal. Refer to 

BR-512, "Inspection and Adjustment"

.

2. Turn the power switch OFF to exit CONSULT.
3. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Do not operate the vehicle and CONSULT while waiting.

4. Remove 12V battery. Refer to 

PG-89, "Removal and Installation"

.

5. Move the fuse box.
6. Drain brake fluid. Refer to 

BR-493, "Draining"

.

7. Remove cowl top cover. Refer to 

EXT-19, "Removal and Installation"

.

8. Remove wiper drive assembly. Refer to 

WW-54, "Removal and Installation"

.

9. Remove cowl top extension. Refer to 

EXT-19, "Removal and Installation"

.

10. Disconnect the brake fluid level switch harness connector.

Reservoir cap

Oil strainer

Electrically-driven intelligent brake 
unit

Master cylinder pressure sensor

Lock nut

Clevis

Gasket

Spacer

: N·m (kg-m, ft-lb)

JSFIA1844GB

ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT

BR-511

< REMOVAL AND INSTALLATION >

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11. Disconnect the master cylinder pressure sensor harness connector.
12. Separate the brake tube   from electrically-driven intelligent

brake unit with a flare nut wrench (A).

CAUTION:

Do not scratch the flare nut   and the brake tube.

13. Remove snap pin   and clevis pin  . Refer to 

BR-500,

"Removal and Installation"

.

14. Disconnect electrically-driven intelligent brake unit harness connector, follow the procedure described

below.

a. Pull the lever   of electrically-driven intelligent brake unit har-

ness connector   in the direction  .

b. Disconnect electrically-driven intelligent brake unit harness con-

nector .

15. Remove nuts on electrically-driven intelligent brake unit and

brake pedal assembly.

CAUTION:

To prevent damage to the parts, hold the electrically-driven

intelligent brake unit so as to avoid dropping out.

16. Remove electrically-driven intelligent brake unit.

CAUTION:

Do not deform or bend the brake tubes.

17. Remove master cylinder pressure sensor.
18. Remove spacer and gasket from electrically-driven intelligent brake unit.
19. Perform inspection after removal. Refer to 

BR-512, "Inspection and Adjustment"

.

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

JSFIA1679ZZ

JPFIA0019ZZ

JSFIA1680ZZ

JSFIA1681ZZ

BR-512

< REMOVAL AND INSTALLATION >

ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT

• Do not 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, do

not wash them with water.

• Do not depress brake pedal. While removing the brake tube. If this is not complied with, brake fluid

may splash.

• Be careful not to damage electrically-driven intelligent brake unit stud bolt threads. If electrically-

driven intelligent brake unit is tilted during installation, the dash panel may damage the threads.

• Do not deform or bend the brake tubes when installing the electrically-driven intelligent brake unit.

• Do not reuse the clevis pin.

• Temporarily tighten the flare nut of brake tube to the electrically-driven intelligent brake unit by hand. Then

tighten it to the specified torque with a crowfoot and torque wrench.

• After installing the electrically-driven intelligent brake unit harness

connector  , move the lever   in the direction   to secure the

locking.

• Perform the air bleeding. Refer to 

BR-494, "Bleeding Brake Sys-

tem"

.

• Check each item of brake pedal. Adjust it if the measurement value

is not the standard. Refer to 

BR-490, "Inspection and Adjustment"

.

• Perform stroke sensor 0 point learning when electrically-driven

intelligent brake unit is removed and installed, or replaced. Refer to

BR-53, "Work Procedure"

.

Inspection and Adjustment

INFOID:0000000010123140

INSPECTION BEFORE REMOVAL

Check the brake fluid level switch. Refer to 

BRC-118, "Component Inspection"

.

INSPECTION AFTER REMOVAL

Input Rod Length Inspection

1. Loosen the lock nut   and adjust the input rod   to the speci-

fied length (A).

2. Tighten the lock nut to the specified torque.

JSFIA1682ZZ

A

: Refer to 

BR-531, "Electrically-driven Intelligent 

Brake"

.

JSFIA0786ZZ

 

 

 

 

 

 

 

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