Infiniti QX56 (JA60). Manual — part 118
BR-32
< ON-VEHICLE REPAIR >
FRONT DISC BRAKE
5. Remove torque member bolts, and remove brake caliper
assembly.
CAUTION:
Do not drop brake pad.
6. Apply matching marks to disc rotor and wheel hub assembly as
shown if the disc rotor is to be reused, then remove disc rotor.
CAUTION:
Put matching marks on wheel hub assembly and disc rotor
if the disc rotor is to be reused.
INSTALLATION
1. If reusing the disc rotor, use the matching marks to align disc
rotor on the wheel hub assembly as shown, then install disc
rotor using a wheel nut to hold it in place.
CAUTION:
Use matching marks on wheel hub assembly and disc rotor
if the disc rotor is to be reused.
2. Install brake caliper assembly to vehicle, and tighten torque
member bolts to the specified torque.
CAUTION:
Do not allow oil or any moisture on all contact surfaces
between steering knuckle and caliper assembly, bolts, and
washer.
SFIA2437E
SDIA2608E
SDIA2608E
SFIA2437E
FRONT DISC BRAKE
BR-33
< ON-VEHICLE REPAIR >
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3. Install brake hose to brake caliper assembly using new copper
washers. Align the brake hose to the projection as shown and
tighten union bolts to the specified torque.
CAUTION:
• Do not reuse copper washers.
• Securely attach brake hose to projection on cylinder
body.
4. Refill with new brake fluid and bleed air. Refer to
BR-17, "Bleeding Brake System"
5. Check front disc brake for drag and correct as necessary.
6. Install front wheel and tire. Refer to
SFIA2431E
BR-34
< ON-VEHICLE REPAIR >
REAR DISC BRAKE
REAR DISC BRAKE
Exploded View of Brake Pads
INFOID:0000000005147917
Removal and Installation of Brake Pad
INFOID:0000000005147918
WARNING:
Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of air borne
particles or other materials.
CAUTION:
• While removing cylinder body, do not depress brake pedal because piston will pop out.
• It is not necessary to disconnect brake hose connection except for disassembly or replacement of
caliper assembly. In this case, hang cylinder body with a wire so as not to stretch brake hose.
• Do not damage piston boot.
• If any shim is subject to serious corrosion, replace it with a new one.
• Always replace shim and shim cover as a set when replacing brake pads.
• Keep rotor free from brake fluid.
• Burnish the brake pads and disc rotor mutually contacting surfaces, after refinishing or replacing
rotors, after replacing pads, or if a soft pedal occurs at very low mileage.
REMOVAL
1. Remove rear wheel and tires using power tools.
2. Partially drain some brake fluid from the reservoir.
3. Remove the sliding sleeves and sliding pin bolts from the cylinder body.
4. Support the cylinder body with wire, remove pads, shims, cover and retainers.
INSTALLATION
1. Push piston in using suitable tool.
CAUTION:
By pushing in piston, brake fluid returns to master cylinder reservoir tank. Watch the brake fluid
level in the reservoir tank.
NOTE:
Using a suitable tool, makes it easier to push in the piston.
1.
Inner shim cover
2.
Outer pad
3.
Outer multi-layered shim
4.
Pad wear sensor
5.
Inner pad (RH)
6.
Pad retainer
7.
Inner pad
8.
Inner shim
1: Molykote M-77 grease
AWFIA0293GB
REAR DISC BRAKE
BR-35
< ON-VEHICLE REPAIR >
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2. Apply Molykote M-77 grease to knuckle slide where brake pad contacts and to the outer multi-layered
shim, pad retainers and inner shim.
CAUTION:
Do not get grease on the brake pads or brake rotor friction surfaces.
3. Install pads, shims, cover and retainers to cylinder body.
4. Apply rubber grease to the sliding sleeves and install cylinder body, sliding sleeves and sliding pin bolts
and tighten to specification. Refer to
BR-35, "Exploded View of Brake Caliper"
5. Check rear disc brake for drag.
6. Install rear wheel and tires. Refer to
.
Brake Burnishing Procedure
INFOID:0000000005147919
Burnish contact surfaces between disc rotors and pads according to following procedure after refinishing or
replacing rotors, after replacing pads, or if a soft pedal occurs at very low mileage.
CAUTION:
• Be careful of vehicle speed because the brake does not operate easily until pad and disc rotor are
securely seated.
• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1. Drive vehicle on straight, flat road.
2. Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3. Drive without depressing brake for a few minutes to cool the brake.
4. Repeat steps 1 through 3 until pad and disc rotor are securely seated.
Exploded View of Brake Caliper
INFOID:0000000005147920
1.
Union bolt
2.
Brake hose
3.
Copper washer
4.
Cap
5.
Bleed valve
6.
Sliding pin bolt
7.
Cylinder body
8.
Piston seal
9.
Piston
10. Piston boot
11. Knuckle slide
12.
Sliding sleeve boot
AWFIA0423GB
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