Infiniti FX35, FX50 (S51). Manual - part 231

BRAKE PIPING

BR-21

< REMOVAL AND INSTALLATION >

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

FRONT : Hydraulic Piping

INFOID:0000000005234178

2 PISTON TYPE

1.

Brake tube

2.

Connector bracket

3.

Connector

4.

Brake booster

5.

Master cylinder

6.

ABS actuator and electric unit (con-
trol unit)

7.

Lock plate

8.

Brake tube

9.

Brake hose bracket

10. Brake hose

A.

To rear brake tube

B.

To front brake hose

C.

To front brake tube

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPFIA0372GB

BR-22

< REMOVAL AND INSTALLATION >

BRAKE PIPING

4 PISTON TYPE

FRONT : Removal and Installation

INFOID:0000000005234179

REMOVAL

2 Piston Type

1.

ABS actuator and electric unit (con-
trol unit)

2.

Front disc brake

3.

Master cylinder

4.

Brake booster

5.

Connector

6.

Rear disc brake

A.

Brake hose

B.

Brake tube

: Flare nut

: Union bolt

JPFIA0373ZZ

1.

ABS actuator and electric unit (con-
trol unit)

2.

Front disc brake

3.

Master cylinder

4.

Brake booster

5.

Connector

6.

Rear disc brake

A.

Brake hose

B.

Brake tube

: Flare nut

JPFIA0374ZZ

BRAKE PIPING

BR-23

< REMOVAL AND INSTALLATION >

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

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 tires with power tool.

2.

Drain brake fluid. Refer to 

BR-10, "Draining"

.

3.

Loosen the flare nut with a flare nut wrench and separate the brake tube from the hose.

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 disconnecting to prevent entrance of dirt.

4.

Remove the union bolt and copper washers, and remove the brake hose from the brake caliper assembly.

5.

Remove the brake hose mounting nut.

6.

Remove the lock plate and remove the brake hose.

4 Piston Type

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 tires with power tool.

2.

Drain brake fluid. Refer to 

BR-10, "Draining"

.

3.

Loosen the flare nut with a flare nut wrench and separate the brake tube from the hose and caliper.

CAUTION:

• Cover flare nut wrench with a cloth as not to damage the caliper.
• 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 disconnecting to prevent entrance of dirt.

4.

Remove the brake tube mounting bolt and remove the brake tube.

5.

Remove the brake hose mounting nut.

6.

Remove the lock plate and remove the brake hose.

INSTALLATION

2 Piston Type

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.

Assemble the union bolt and the copper washer to the brake hose.

CAUTION:

Never reuse the copper washer.

2.

Align the brake hose pin to the projection (A) of the brake caliper
assembly and tighten the union bolt (1) 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:

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

4.

Tighten the brake hose mounting nuts to the specified torque.

CAUTION:

Never reuse the brake hose mounting nuts.

5.

Tighten the flare nut to the specified torque with a flare nut crow-
foot and a torque wrench.

CAUTION:

Never scratch the flare nut and the brake tube.

6.

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

BR-11, "Bleeding Brake System"

.

CAUTION:

Never reuse drained brake fluid.

JPFIA0011ZZ

BR-24

< REMOVAL AND INSTALLATION >

BRAKE PIPING

4 Piston Type

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.

Install the brake tube to the brake hose and caliper, temporarily tighten the flare nut by hand until it dose
not rotate further, and fix the brake hose to the bracket with the lock plate.

CAUTION:

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

2.

Tighten the brake hose mounting nuts to the specified torque.

CAUTION:

Never reuse the brake hose mounting nuts.

3.

Tighten the brake tube mounting bolt to the specified torque.

4.

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

CAUTION:

• Cover flare nut wrench with a cloth as not to damage the caliper.
• 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.

FRONT : Inspection

INFOID:0000000005234180

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, 177 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:0000000005234181

1 PISTON TYPE