2006 INFINITI QX56 Factory Service Manual

height seat adjustment gas tank size clock setting ESP inoperative fuel consumption

Page 1017 of 3383

INFINITI QX56 2006 Factory Service Manual BR-24
FRONT DISC BRAKE
Revision: November 20092006 QX56
4. Using a suitable tool, remove piston seal from cylinder body as
shown.
CAUTION:
Be careful not to damage cylinder body inner wall.
CALIPER IN

Page 1018 of 3383

INFINITI QX56 2006 Factory Service Manual FRONT DISC BRAKEBR-25
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Revision: November 2009 2006 QX56
2. Apply brake fluid to piston and piston boot, then install piston
boot in to piston groove.
CAUTION:
Do not reuse p

FRONT DISC BRAKEBR-25
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Revision: November 2009 2006 QX56
2. Apply brake fluid to piston and piston boot, then install piston
boot in to piston groove.
CAUTION:
Do not reuse piston boot.
3. Insert into cylinder body by hand and insert piston boot piston-side lip into piston groove. CAUTION:
Press piston evenly and vary the pressing point to prevent cylinder body inner wall from being
rubbed.
4. Install sliding pins and sliding pin boots to torque member.
CAUTION:
Trailing/upper sliding pin must be replaced at each service.
5. Install cylinder body. Tighten sliding pin bolt to the specification. Refer to BR-21, "
Components" .
DISC ROTOR INSPECTION
Visual Inspection
Check surface of disc rotor for uneven wear, cracks, and serious damage. If any of them is detected, replace
applicable part.
Runout Inspection
1. Using 2 or more wheel nuts, temporarily install disc rotor to wheel hub.
2. Inspect runout using a dial gauge. (Measured at 10mm (0.39 in)
inside the disc edge.)
NOTE:
Make sure that wheel bearing axial end play is within the specifi-
cations before measuring runout. Refer to FA X - 5 , "
WHEEL
BEARING INSPECTION" .
3. If runout is outside the limit, find the minimum runout point by shifting mounting positions of disc rotor and wheel hub by one
hole.
4. If runout still out of specification, turn rotor with on-car brake lathe.
Thickness Inspection
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.
BRAKE BURNISHING PROCEDURE
Burnish brake contact surface according to the following procedure after refinishing or replacing rotors, after
replacing pads, or if a soft pedal occurs at very low mileage.
WFIA0211E
Runout limit (on vehicle) : Refer to BR-32,
"Front Disc Brake" .
BRA0013D
Standard thickness : Refer to BR-32, "Front
Disc Brake" .
Repair limit thickness : Refer to BR-32, "
Front
Disc Brake" .
Maximum uneven wear
(Measured at 8 positions) : Refer to
BR-32, "
Front
Disc Brake" .
SBR020B

Page 1019 of 3383

INFINITI QX56 2006 Factory Service Manual BR-26
FRONT DISC BRAKE
Revision: November 20092006 QX56
CAUTION:
Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1. Drive the vehicle on a straight smooth road

Page 1020 of 3383

INFINITI QX56 2006 Factory Service Manual REAR DISC BRAKEBR-27
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Revision: November 2009 2006 QX56
REAR DISC BRAKEPFP:44000
On-vehicle InspectionEFS004WL
PAD WEAR INSPECTION
Inspect the thickness of pad through cylind

Page 1021 of 3383

INFINITI QX56 2006 Factory Service Manual BR-28
REAR DISC BRAKE
Revision: November 20092006 QX56
WARNING:
Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne
particles or other materials.
CAUTIO

BR-28
REAR DISC BRAKE
Revision: November 20092006 QX56
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-31, "
BRAKE BURNISHING PROCEDURE" .
Removal and Installation of Brake PadEFS004WN
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 RotorEFS004WO
REMOVAL
1. Remove tires from vehicle with power tool.
2. Drain brake fluid as necessary. Refer to BR-10, "
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-11, "RECOMMENDED FLUIDS AND LUBRICANTS" .
Do not reuse drained brake fluid.
1. Install disc rotor.
LFIA0211E

Page 1022 of 3383

INFINITI QX56 2006 Factory Service Manual REAR DISC BRAKEBR-29
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Revision: November 2009 2006 QX56
2. Install cylinder body and tighten bolts to specification. Refer to BR-27, "Components" .
CAUTION:
Before installing

Page 1023 of 3383

INFINITI QX56 2006 Factory Service Manual BR-30
REAR DISC BRAKE
Revision: November 20092006 QX56
Sliding Pin Bolts and Sliding Pin Boots
Make sure there is no wear, damage, or cracks in sliding sleeve and sliding sleeve boots, and if there ar

Page 1024 of 3383

INFINITI QX56 2006 Factory Service Manual REAR DISC BRAKEBR-31
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Revision: November 2009 2006 QX56
Thickness Inspection
Using a micrometer, check thickness of disc rotor. If thickness is
either at or below the wear lim

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