Nissan Qashqai J11. Manual - part 888

 

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Nissan Qashqai J11. Manual - part 888

 

 

BR-24

< REMOVAL AND INSTALLATION >

[LHD]

BRAKE PIPING

2.

Install the brake hose L-pin by aligning it with the brake caliper
assembly positioning hole, and tighten the union bolt (1) to the
specified torque.

3.

Connect the hose to the brake tube, 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:

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

4.

Tighten the flare nut to the specified torque with a flare nut
torque wrench.

CAUTION:

Never scratch the flare nut and the brake tube.

5.

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

BR-12, "Bleeding Brake System"

.

CAUTION:

Never reuse drained brake fluid.

6.

Install tires.

REAR : Inspection

INFOID:0000000010305367

INSPECTION AFTER REMOVAL

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.

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BRAKE MASTER CYLINDER

BR-25

< REMOVAL AND INSTALLATION >

[LHD]

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

BRAKE MASTER CYLINDER

Exploded View

INFOID:0000000010305368

MR20DD - HRA2DDT

JPFIA0080GB

1.

Reservoir cap

2.

Reservoir tank

3.

Cylinder body

4.

Pin

5.

O-ring

6.

Grommet

 : Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease.

 : Apply brake fluid.

Refer to 

GI-4, "Components"

 for symbols not described on the above.

BR-26

< REMOVAL AND INSTALLATION >

[LHD]

BRAKE MASTER CYLINDER

K9K - R9M

Removal and Installation

INFOID:0000000010305369

REMOVAL 

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.

1.

Remove battery and bracket.

2.

Remove air duct and air cleaner case. Refer to 

EM-279, "Exploded View"

 (K9K engine models), 

EM-380,

"Exploded View"

 (R9M engine models), 

EM-23, "Exploded View"

 (HRA2DDT engine models), 

EM-147,

"Exploded View"

(MR20DD engine models).

3.

Drain brake fluid. Refer to 

BR-11, "Draining"

.

4.

Disconnect the brake fluid level switch harness connector.

5.

Disconnect the brake tubes from the master cylinder assembly with a flare nut wrench.

CAUTION:

Never scratch the flare nut and the brake tube.

6.

Remove the master cylinder assembly.

CAUTION:

• Depress the brake pedal several times to release the vacuum pressure from the brake booster.

Then remove the master cylinder assembly.

• Never depress the brake pedal after the master cylinder assembly is removed.
• The piston of the master cylinder assembly is exposed. Never damage it when removing the

master cylinder.

• The piston may drop off when pulled out strongly. Never hold the piston. Hold the cylinder body

when handling the master cylinder assembly.

E1FIA0154GB

1.

Reservoir cap

2.

Reservoir tank

3.

Cylinder body

4.

Pin

5.

Grommet

 : Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease.

 : Apply brake fluid.

Refer to 

GI-4, "Components"

 for symbols not described on the above.

BRAKE MASTER CYLINDER

BR-27

< REMOVAL AND INSTALLATION >

[LHD]

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

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.
• Note the following, and installation is the reverse order of removal.

CAUTION:

• Never depress the brake pedal after the master cylinder assembly is removed.
• Apply PBC (Poly Butyl Cuprysil) silicone-based grease to

the brake booster [see (A) in the figure] when installing the
master cylinder assembly to the brake booster.

• The piston of the master cylinder assembly is exposed.

Never damage it when handling the master cylinder and
check that no dirt and dust are present on the piston before
installation. Clean it with new brake fluid if necessary.

• The piston may drop off when pulled strongly. Never hold

the piston. Hold the cylinder body when handling the master
cylinder assembly.

• Temporarily tighten the brake tube flare nut to the master cylinder

assembly by hand. Then tighten it to the specified torque with a
flare nut torque wrench. Refer to 

BR-19, "FRONT : Exploded View"

.

CAUTION:

Never scratch the flare nut and the brake tube.

• After installation, perform the air bleeding. Refer to 

BR-12, "Bleeding Brake System"

.

CAUTION:

Never reuse drained brake fluid.

Disassembly and Assembly

INFOID:0000000010305370

DISASSEMBLY

CAUTION:

• Never disassemble the cylinder body.
• Remove the reservoir tank if necessary.
1.

Fix the master cylinder assembly to a vise.

CAUTION:

Always set copper plates or cloth between vise when fixing the cylinder body to a vise. Never
overtighten the vise.

2.

Remove the reservoir tank mounting pin with a pin punch.

3.

Remove the reservoir tank and grommet from the cylinder body.

CAUTION:

Never drop the removed parts. The parts must not be
reused if they are dropped.

ASSEMBLY

1.

Apply new brake fluid to the grommet and install it to the cylinder body.

CAUTION:

• Never use mineral oil such as gasoline or light oil.
• Never reuse the grommets.

2.

Install the reservoir tank to the cylinder body.

CAUTION:

• Never drop the parts when installing. The parts must not be reused if they are dropped.
• Never reuse reservoir tank.

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