Nissan Pathfinder. Manual — part 233
BR-40
< REMOVAL AND INSTALLATION >
REAR DISC BRAKE
BRAKE CALIPER ASSEMBLY : Removal and Installation
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WARNING:
Clean dust on brake caliper and brake pad with a vacuum dust collector to minimize the hazard of air-
borne particles or other materials.
CAUTION:
• Do not depress the brake pedal.
• Do not spill or 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, twist or pull the brake hoses and piping.
• Do not reuse drained brake fluid.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Remove rear wheels and tires using power tool.
2. Secure the disc rotor using wheel nuts.
3. Remove union bolt, copper sealing washers, and disconnect brake hose from brake caliper. Discard the
copper sealing washers.
CAUTION:
Do not reuse copper sealing washers.
4. Remove the torque member bolts. Remove the brake caliper and torque member from the vehicle as an
assembly.
5. Remove sliding pin bolts and the brake caliper from torque member.
CAUTION:
Do not drop brake pads or brake caliper.
INSTALLATION
1.
Brake caliper
2.
Sliding pin bolt bushing
3.
Copper sealing washer
4.
Brake hose
5.
Torque member
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REAR DISC BRAKE
BR-41
< REMOVAL AND INSTALLATION >
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1. Position the brake caliper to torque member and install the sliding pin bolts. Tighten to specification.
2. Position the brake caliper and torque member to the vehicle as an assembly. Install the torque member
bolts.
3. Assemble the union bolt (A) and the copper sealing washers (1)
to the brake hose and install it as an assembly to the brake cali-
per. Align the brake hose L-pin by aligning it with the brake cali-
per hole, and tighten the union bolt (A) to the specified torque.
CAUTION:
Do not reuse copper sealing washers.
4. Refill with new brake fluid and perform the air bleeding. Refer to
BR-16, "Bleeding Brake System"
CAUTION:
• Do not reuse drained brake fluid.
• Do not spill or splash brake fluid on the disc rotor.
5. Check the rear disc brakes for drag.
6. Install the rear wheels and tires. Refer to
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BR-42
< UNIT DISASSEMBLY AND ASSEMBLY >
FRONT DISC BRAKE
UNIT DISASSEMBLY AND ASSEMBLY
FRONT DISC BRAKE
Exploded View
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Disassembly and Assembly
INFOID:0000000009177206
DISASSEMBLY
1. Remove the brake caliper from the vehicle. Refer to
BR-36, "BRAKE CALIPER ASSEMBLY : Removal
2. Remove sliding pins and sliding pin boots from torque member.
3. Place a wooden block in brake caliper body and blow air from
union bolt hole to remove pistons and piston boots.
WARNING:
Do not get fingers caught between pistons and brake cali-
per body.
CAUTION:
Do not reuse piston boots.
1.
Torque member
2.
Sliding pin boot
3.
Sliding pin
4.
Piston boot
5.
Piston
6.
Piston seal
7.
Brake caliper body
8.
Bleeder valve
9.
Cap
A.
Rubber grease
Apply brake fluid
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FRONT DISC BRAKE
BR-43
< UNIT DISASSEMBLY AND ASSEMBLY >
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4. Remove piston seals from brake caliper body using suitable tool.
CAUTION:
• Do not damage cylinder inner wall.
• Do not reuse piston seals.
5. Remove bleeder valve and cap.
INSPECTION AFTER DISASSEMBLY
Brake Caliper Body
Check the inner wall of the brake caliper body for rust, wear, cracks or damage. Replace the brake caliper
body if any abnormal condition is detected.
CAUTION:
Always clean with new brake fluid. Do not clean with mineral oil such as gasoline and light oil.
Torque Member
Check the torque member for rust, wear, cracks or damage. Replace the torque member if any abnormal con-
dition is detected.
Piston
Check the surface of the piston for rust, wear, cracks or damage. Replace the piston if any abnormal condition
is detected.
CAUTION:
Piston sliding surface is plated. Do not polish with sandpaper.
Sliding Pin and Sliding Pin Boot
Check the sliding pins and sliding pin boots for rust, wear, cracks or damage. Replace the parts if any abnor-
mal condition is detected.
ASSEMBLY
1. Install bleeder valve and cap.
2. Apply rubber grease to each piston seal (1), and install them to
the brake caliper body.
CAUTION:
Do not reuse piston seal.
3. Apply rubber grease to the piston boots. Cover each piston end
with a piston boot, and then install cylinder side lip on piston
boot securely into a groove on brake caliper body.
CAUTION:
Do not reuse piston boots.
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