2007 INFINITI QX56 Factory Service Manual

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Page 921 of 3061

INFINITI QX56 2007 Factory Service Manual FRONT DISC BRAKE
BR-23
< SERVICE INFORMATION >
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Using a micrometer, check thickness of disc rotor. If thickness is
either at or below the wear limit, or exceeds maximum

Page 922 of 3061

INFINITI QX56 2007 Factory Service Manual BR-24
< SERVICE INFORMATION >
REAR DISC BRAKE
REAR DISC BRAKE
On-vehicle InspectionINFOID:0000000003532743
PAD WEAR INSPECTION
• Inspect the thickness of pad through cylinder body inspection hole.
U

Page 923 of 3061

INFINITI QX56 2007 Factory Service Manual REAR DISC BRAKE
BR-25
< SERVICE INFORMATION >
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WARNING:
Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne
particles or

REAR DISC BRAKE
BR-25
< SERVICE INFORMATION >
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WARNING:
Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne
particles or other materials.
CAUTION:
• While removing cylinder body, never depress brake pedal because piston will pop out.
• It is not necessary to remove bolts on torque member and brake hose except for disassembly or
replacement of cylinder body. In this case, hang cylinder body with a wire so as not to stretch brake
hose.
• Do not damage piston boot.
• Burnish brake contact surface after refinishing or replacing rotors, after replacing pads, or it a soft
pedal occurs at very low mileage. Refer to BR-26, "
Brake Caliper" .
Removal and Installation of Brake PadINFOID:0000000003532745
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove the top bolt from the cylinder body.
3. Swing cylinder body open, and remove pads.
INSTALLATION
1. Push piston in so that pad is firmly attached and install cylinder body to torque member.
NOTE:
Using a disc brake piston tool (commercial service tool), makes it easier to push in the piston.
CAUTION:
By pushing in piston, brake fluid returns to master cylinder reservoir tank. Watch the level of the
surface of reservoir tank.
2. Apply Molykote M-77 grease to knuckle slide where brake pad contacts.
CAUTION:
Do not get grease on the brake rotor friction surface.
3. Install pads to cylinder body.
4. Install cylinder body top bolt and tighten to specification.
5. Check brake for drag.
6. Install tires to the vehicle. Refer to WT-7, "
Rotation" .
Removal and Installation of Brake Caliper and Disc RotorINFOID:0000000003532746
REMOVAL
1. Remove tires from vehicle with power tool.
2. Drain brake fluid as necessary. Refer to BR-8, "
Drain and Refill" .
NOTE:
Do not remove union bolt unless removing cylinder body from vehicle.
3. Remove mounting bolts and cylinder body.
NOTE:
Position cylinder body aside using suitable wire, as necessary.
4. Remove disc rotor.
INSTALLATION
CAUTION:
• Refill with new brake fluid. Refer to MA-10
.
• Do not reuse drained brake fluid.
1. Install disc rotor.
LFIA0211E

Page 924 of 3061

INFINITI QX56 2007 Factory Service Manual BR-26
< SERVICE INFORMATION >
REAR DISC BRAKE
2. Install cylinder body and tighten bolts to specification. Refer to BR-24, "Exploded View" .
CAUTION:
Before installing cylinder body to the vehicle, wi

Page 925 of 3061

INFINITI QX56 2007 Factory Service Manual REAR DISC BRAKE
BR-27
< SERVICE INFORMATION >
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Make sure there is no wear, damage, or cracks in sliding sleeve and sliding sleeve boots, and if there are,
replace them.

Page 926 of 3061

INFINITI QX56 2007 Factory Service Manual BR-28
< SERVICE INFORMATION >
REAR DISC BRAKE
Using a micrometer, check thickness of disc rotor. If thickness is
either at or below the wear limit, or exceeds maximum uneven wear,
replace disc rotor.

Page 927 of 3061

INFINITI QX56 2007 Factory Service Manual SERVICE DATA AND SPECIFICATIONS (SDS)
BR-29
< SERVICE INFORMATION >
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SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000003532748
Unit: mm (in)
Bra

Page 928 of 3061

INFINITI QX56 2007 Factory Service Manual BR-30
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
Brake Booster
INFOID:0000000003532750
Check ValveINFOID:0000000003532751
Front Disc BrakeINFOID:0000000003532752
Unit: mm (in)
Rear

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