Infiniti QX56 (JA60). Manual - part 112

 

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Infiniti QX56 (JA60). Manual - part 112

 

 

BR-8

< BASIC INSPECTION >

FRONT DISC BRAKE

Check thickness of the disc rotor using a micrometer. Replace disc

rotor if thickness is less than the wear limit.

Standard thickness

: Refer to 

BR-46, "Front 

Disc Brake"

.

Repair limit thickness

: Refer to 

BR-46, "Front 

Disc Brake"

.

Thickness variation
(Measured at 8 positions)

: Refer to 

BR-46, "Front 

Disc Brake"

.

SBR020B

REAR DISC BRAKE

BR-9

< BASIC INSPECTION >

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REAR DISC BRAKE

BRAKE PAD
BRAKE PAD : Rear Pad Inspection

INFOID:0000000005147892

PAD WEAR

Check pad thickness from the inspection holes on cylinder body.

Check using a scale if necessary.

DISC ROTOR
DISC ROTOR : Rear Rotor Inspection

INFOID:0000000005147893

VISUAL

Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace as necessary.

RUNOUT

1. Attach disc rotor to wheel hub using wheel nuts (at two or more

positions). 

2. Inspect runout using dial gauge placed at 10 mm (0.39 in) inside

disc edge.

NOTE:

Before measuring, make sure that wheel bearing axial end play

is within the specification. Refer to 

RAX-6, "On-Vehicle Inspec-

tion and Service"

.

3. When runout exceeds limit value, displace mounting positions of disc rotor by one hole. And then find a

position of the minimum value for runout. 

4. If runout is outside the specified value after performing the above operation, turn disc rotor using Tool.

THICKNESS

Check the thickness of the disc rotor using a micrometer. Replace

disc rotor if the thickness is less than the wear limit.

Standard thickness

: Refer to 

BR-46, "Rear Disc 

Brake"

.

Repair limit thickness

: Refer to 

BR-46, "Rear Disc 

Brake"

.

BRA0010D

Runout limit 

: Refer to 

BR-46, "Rear Disc Brake"

.

(With it attached to the vehicle)

Tool number

: 38-PFM90.5 ( — )

BRA0697D

Standard thickness

: Refer to 

BR-46, "Rear 

Disc Brake"

.

Repair limit thickness

: Refer to 

BR-46, "Rear 

Disc Brake"

.

Thickness variation
(Measured at 8 positions)

: Refer to 

BR-46, "Rear 

Disc Brake"

.

SFIA2284E

BR-10

< BASIC INSPECTION >

BRAKE BOOSTER

BRAKE BOOSTER

Inspection

INFOID:0000000005147894

OPERATION

With engine stopped, change vacuum to atmospheric pressure by

depressing brake pedal several times. Then with brake pedal fully

depressed, start engine and when vacuum pressure reaches the

standard, make sure that clearance between brake pedal and floor

panel decreases.

AIR TIGHT

• Run engine at idle for approximately 1 minute, and stop it after

applying vacuum to booster. Depress brake pedal normally to

change vacuum to atmospheric pressure. Make sure that distance

at intervals of 5 seconds between brake pedal and floor panel

gradually increases.

• Depress brake pedal while engine is running, and stop engine with pedal depressed. The pedal stroke

should not change after holding pedal down for 30 seconds.

BRA0037D

SBR365AA

VACUUM LINES

BR-11

< BASIC INSPECTION >

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VACUUM LINES

Inspection

INFOID:0000000005147895

VISUAL INSPECTION

Check for improper assembly, damage and deterioration. Replace as necessary.

CHECK VALVE INSPECTION

Airtightness Inspection

Use a suitable tool to check. Connect to brake booster side of check

valve.

Check valve specification

: Refer to 

BR-46, "Check 

Valve"

.

LFIA0217E

 

 

 

 

 

 

 

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