Nissan Leaf. Manual - part 296

BRAKE PIPING

BR-505

< REMOVAL AND INSTALLATION >

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4. Remove the union bolt   and copper sealing washers  , and

remove the brake hose   from the brake caliper assembly.

5. Remove the lock plate   and remove the brake hose.

INSTALLATION

CAUTION:

• 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 hose or brake tube. If this is not complied

with, brake fluid may splash.

• If the brake fluid or grease adheres to the disc rotor, quickly wipe it off.
1. Assemble the union bolt   and the copper sealing washers 

to the brake hose.

CAUTION:

Do not reuse copper sealing washers.

2. Align the brake hose pin   with the brake caliper assembly pro-

jection  , and tighten the union bolt to the specified torque.

3. Install the brake tube   to the brake hose  , temporarily tighten

the flare nut   by hand until it does not rotate further, and fix the
brake hose 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.

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

BR-494, "Bleeding Brake System"

.

CAUTION:

Do not reuse drained brake fluid.

6. Install wheel and tire. Refer to 

WT-45, "Removal and Installa-

tion"

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7. Perform inspection after installation. Refer to 

BR-506, "FRONT :

Inspection"

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BR-506

< REMOVAL AND INSTALLATION >

BRAKE PIPING

FRONT : Inspection

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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 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.

REAR
REAR : Exploded View

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Union bolt

Brake hose A

Lock plate

Copper sealing washer

Brake tube A

Brake hose B

Brake tube B

To connector

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BRAKE PIPING

BR-507

< REMOVAL AND INSTALLATION >

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REAR : Hydraulic Piping

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REAR : Removal and Installation

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REMOVAL

CAUTION:

• 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 hose or brake tube. If this is not complied

with, brake fluid may splash.

• If the brake fluid or grease adheres to the disc rotor, quickly wipe it off.

NOTE:

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

ing.
1. Remove wheel and tire using power tool. Refer to 

WT-45, "Removal and Installation"

.

2. Drain brake fluid. Refer to 

BR-493, "Draining"

.

3. Loosen the flare nut   with a flare nut wrench (A) and separate

the brake tube B   and brake tube A   from the hose B  .

CAUTION:

• Do not scratch the flare nut and the brake tube.

• Do not bend sharply, twist or strongly pull out the brake

hoses and tubes.

• To prevent the inclusion of foreign matter, cover open end

of brake tubes and hoses when disconnecting to prevent

entrance of dirt.

4. Remove the lock plate   and remove the brake hose B.

ABS actuator and electric unit (con-
trol unit)

Front disc brake

Electrically-driven intelligent brake 
unit

Connector

Rear disc brake

Brake tube

Brake hose

: Flare nut

: Union bolt

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BR-508

< REMOVAL AND INSTALLATION >

BRAKE PIPING

5. Loosen the flare nut   with a flare nut wrench (A) and separate

the brake tube A   from the hose A  .

CAUTION:

• Do not scratch the flare nut and the brake tube.

• Do not bend sharply, twist or strongly pull out the brake

hoses and tubes.

• To prevent the inclusion of foreign matter, cover open end

of brake tubes and hoses when disconnecting to prevent

entrance of dirt.

6. Remove the lock plate  , and remove brake hose A from brake

hose bracket  .

7. Remove the union bolt   and copper sealing washers  , and

remove the brake hose A   from the brake caliper assembly.

INSTALLATION

CAUTION:

• 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 hose or brake tube. If this is not complied

with, brake fluid may splash.

• If the brake fluid or grease adheres to the disc rotor, quickly wipe it off.
1. Assemble the union bolt   and the copper sealing washers 

to the brake hose A.

CAUTION:

Do not reuse the copper sealing washers.

2. Align the brake hose B L-pin   with the brake caliper assembly

hole  , and tighten the union bolt to the specified torque.

3. Install the brake tube A   to the brake hose A  , temporarily

tighten the flare nut   by hand until it does not rotate further,
and fix the brake hose A to the brake hose 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.

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