Nissan Pathfinder. Manual — part 234
BR-44
< UNIT DISASSEMBLY AND ASSEMBLY >
FRONT DISC BRAKE
4. Apply brake fluid to each piston (1). Push each piston into cylin-
der body by hand and push piston boot (2) piston-side lip into
the piston groove.
CAUTION:
Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.
5. Apply rubber grease to bushing; install bushing to sliding pin.
6. Apply rubber grease to sliding pins and sliding pin boots, install sliding pins and sliding pin boots to torque
member.
7. Install the brake caliper to the vehicle. Refer to
BR-36, "BRAKE CALIPER ASSEMBLY : Removal and
.
INSPECTION AFTER INSTALLATION
1. Check the drag of front disc brake. If any drag is found, follow the procedure described below.
2. Remove brake pads.
3. Using a suitable tool, press the pistons into the brake caliper body.
CAUTION:
Do not damage the piston boots.
4. Install brake pads.
5. Depress the brake pedal several times.
6. Check the drag of front disc brake again. If any drag is found, disassemble the brake caliper body.
7. Burnish contact surfaces after refinishing or replacing disc rotors or if a soft pedal occurs at very low mile-
.
JPFIA0034ZZ
REAR DISC BRAKE
BR-45
< UNIT DISASSEMBLY AND ASSEMBLY >
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REAR DISC BRAKE
Exploded View
INFOID:0000000009177207
Disassembly and Assembly
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DISASSEMBLY
1. Remove the brake caliper from the vehicle. Refer to
BR-40, "BRAKE CALIPER ASSEMBLY : Removal
2. Remove sliding pin boots from torque member.
3. Remove sliding pin bolt bushing from sliding pin bolt.
4. Place a wooden block in the cylinder body and blow air from
union bolt hole to remove piston and piston boot.
WARNING:
Do not get fingers caught between pistons and brake cali-
per body.
CAUTION:
Do not reuse piston boot.
1.
Sliding pin bolt
2.
Sliding pin bolt bushing
3.
Cap
4.
Bleeder valve
5.
Brake caliper body
6.
Piston seal
7.
Piston
8.
Piston boot
9.
Sliding pin boot
10. Torque member
A.
Rubber grease
Apply brake fluid
AWFIA1031ZZ
BRD0041D
BR-46
< UNIT DISASSEMBLY AND ASSEMBLY >
REAR DISC BRAKE
5. Remove piston seal from brake caliper body using suitable tool.
CAUTION:
• Do not damage cylinder inner wall.
• Do not reuse piston seal.
6. 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 Bolt Boot
Check the sliding pins and sliding pin bolt boots for rust, wear, cracks or damage. Replace the parts if any
abnormal condition is detected.
ASSEMBLY
1. Install bleeder valve and cap.
2. Apply rubber grease to piston seal (1), and install it to the brake
caliper body.
CAUTION:
Do not reuse piston seal.
3. Apply rubber grease to piston boot (1). Cover the piston (2) end
with the piston boot, and then install cylinder side lip on the pis-
ton boot securely into the groove on brake caliper body.
CAUTION:
Do not reuse piston boot.
JPFIA0038ZZ
JPFIA0039ZZ
JPFIA0040ZZ
REAR DISC BRAKE
BR-47
< UNIT DISASSEMBLY AND ASSEMBLY >
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4. Apply brake fluid to piston (1). Push piston into brake caliper
body by hand and push piston boot (2) piston side lip into the
piston groove.
CAUTION:
Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from contact.
5. Apply rubber grease to bushing; install bushing to sliding pin
bolt.
6. Install sliding pin boots to torque member.
7. Install the brake caliper to the vehicle. Refer to
CALIPER ASSEMBLY : Removal and Installation"
.
INSPECTION AFTER INSTALLATION
1. Check the drag of rear disc brake. If any drag is found, follow the procedure described below.
2. Remove brake pads.
3. Using a suitable tool, press the pistons into the brake caliper body.
CAUTION:
Do not damage the piston boots.
4. Install brake pads.
5. Depress the brake pedal several times.
6. Check the drag of rear disc brake again. If any drag is found, disassemble the brake caliper body.
7. Burnish contact surfaces after refinishing or replacing disc rotors or if a soft pedal occurs at very low mile-
age. Refer to
JPFIA0041ZZ
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