Infiniti QX56 (JA60). Manual - part 113

BR-12

< BASIC INSPECTION >

BRAKE MASTER CYLINDER

BRAKE MASTER CYLINDER

On Board Inspection

INFOID:0000000005147896

LEAK INSPECTION

Check for leaks at master cylinder to brake booster attachment point, reservoir tank, and brake tube connec-

tions.

BRAKE TUBE AND HOSE

BR-13

< BASIC INSPECTION >

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

BRAKE TUBE AND HOSE

Hydraulic Circuit

INFOID:0000000005147897

CAUTION:

• All hoses and piping (tubes) must be free from excessive bending, twisting and pulling.

• Make sure there is no interference with other parts when turning the steering wheel both clockwise

and counterclockwise.

• The brake piping is an important safety part. If a brake fluid leak is detected, always disassemble the

parts. Replace applicable part with a new one, if necessary.

• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is

splashed on painted areas, wash it away with water immediately.

• Do not bend or twist brake hose sharply, or strongly pull it.

• When removing components, cover connections so that no dirt, dust, or other foreign matter gets in.

• Refill with new specified brake fluid. Refer to 

MA-13, "Fluids and Lubricants"

.

• Do not reuse drained brake fluid.

FRONT BRAKE
FRONT BRAKE : Inspection

INFOID:0000000005147898

INSPECTION AFTER REMOVAL

CAUTION:

Brake tubes and hoses are important safety parts. Always disassemble the parts and retighten their fit-

tings, if a brake fluid leak is detected. Replace applicable part with a new one, if damaged part is

detected. 

1.

Actuator

2.

Master cylinder

3.

Brake booster

4.

Connector

A.

Union bolt
18.2 N·m (1.9 kg-m, 13 ft-lb)

B.

Flare nut M12
18.2 N·m (1.9 kg-m, 13 ft-lb)

C.

Flare nut M10
16.2 N·m (1.7 kg-m, 12 ft-lb)

AWFIA0411ZZ

BR-14

< BASIC INSPECTION >

BRAKE TUBE AND HOSE

1. Check brake lines (tubes and hoses) and connections for fluid leaks, damage, twists, deformation, con-

tacts with other parts, and loose connections. Replace any parts as necessary. Refer to 

BR-21, "Removal

and Installation of Front Brake Piping and Brake Hose"

.

2. While depressing brake pedal under a force of 785 N (80 kg-f, 177 lb-f) with engine running for approxi-

mately 5 seconds, check each part for fluid leaks.

REAR BRAKE
REAR BRAKE : Inspection

INFOID:0000000005147899

INSPECTION AFTER REMOVAL

CAUTION:

Brake tubes and hoses are important safety parts. Always disassemble the parts and retighten their fit-

tings, if a brake fluid leak is detected. Replace applicable part with a new one, if damaged part is

detected. 
1. Check brake lines (tubes and hoses) and connections for fluid leaks, damage, twists, deformation, con-

tacts with other parts, and loose connections. Replace any parts as necessary. Refer to 

BR-22, "Removal

and Installation of Rear Brake Piping and Brake Hose"

.

2. While depressing brake pedal under a force of 785 N (80 kg-f, 177 lb-f) with engine running for approxi-

mately 5 seconds, check each part for fluid leaks.

BRAKE PEDAL

BR-15

< ON-VEHICLE MAINTENANCE >

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

ON-VEHICLE MAINTENANCE

BRAKE PEDAL

Inspection and Adjustment

INFOID:0000000005147900

INSPECTION

1. Inspect the brake pedal free height (H) from the floor using Tool

at a 90

° angle to the floor as shown. 

2. Adjust the brake pedal height to specifications.

CAUTION:

When equipped with adjustable pedal, the pedal must be in

the forward most (closest to the floor) position for pedal

height measurement.

Brake Pedal Specifications

Unit: mm (in)

ADJUSTMENT

1. Loosen the stop lamp switch and ASCD cancel switch by turning them 45

° counterclockwise.

Tool number : 

—

(J-46532)

ALFIA0149ZZ

Pedal free height (H) with pedal in forward most position

Refer to 

BR-45, "Brake Pedal"

.

Pedal travel (T)

Refer to 

BR-45, "Brake Pedal"

.

Clearance between brake pedal bracket and threaded end of stop lamp switch and 
ASCD cancel switch

Refer to 

BR-45, "Brake Pedal"

.