Nissan Versa (N17): Brake pad

BRAKE PAD : Exploded View

1. Cylinder body 2. Inner shim 3. Inner pad (with pad wear sensor) 4. Pad return spring 5. Pad retainer 6. Torque member 7. Outer pad 8. Outer shim : Apply MOLYKOTE 7439 or equivalent.

Brake pad : Removal and Installation

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 caliper, do not 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 caliper assembly. In this case, hang caliper 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 and pads free from brake fluid and grease.
• 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. Refer to BR "BRAKE PAD : Inspection and Adjustment".

REMOVAL

1. Remove the front wheel and tire assemblies using power tool. Refer to WT "Adjustment".
2. Remove lower sliding pin bolt.
3. Suspend the cylinder body with suitable wire in a position so that the brake hose will not stretch. Then remove the pad return springs, brake pads, shims and pad retainers from the torque member.

CAUTION:

• Do not deform the pad return springs or pad retainers when servicing the brake pad.
• Do not damage the piston boot.
• Do not drop the brake pads and shims.
• Note the position of the brake pads during removal to aid during installation.

    4.   Perform inspection after removal. Refer to BR "BRAKE PAD : Inspection".

INSTALLATION

1. Install the pad retainers to the torque member, if the pad retainers were removed during service.
2. Apply MOLYKOTE 7439 or equivalent to the mating surfaces between the brake pads and the pad retainers.
3. Install the brake pads and shims to the torque member
4. Install the pad return springs to the brake pad.

CAUTION:

• Do not deform the pad return spring.
• Correctly insert the pad return spring in to the pad return spring hole on the brake pad.

    5.  Install cylinder body to torque member.

CAUTION:

• Do not damage the piston boot.
• When replacing brake pad with new one, check a brake fluid level in the reservoir tank because brake fluid returns to master cylinder reservoir tank when pressing piston in.

NOTE: Use a disc brake piston tool to press piston into the cylinder body.

6. Install the lower sliding pin bolt and tighten it to the specified torque.
7. Depress the brake pedal several times to verify that brake drag does not exist for the front disc brake.

   Refer to BR BRAKE PAD : Inspection".

8. Install the front wheel and tire assemblies. Refer to WT "Adjustment".

Brake pad : Inspection

INSPECTION AFTER REMOVAL

Replace the shims if rust is excessively attached.

INSPECTION AFTER INSTALLATION

1. Check a drag of front disc brake. If any drag is found, follow the procedure described below.
2. Remove brake pads. Refer to BR "BRAKE PAD : Removal and Installation".
3. Press the pistons. Refer to BR "BRAKE PAD : Removal and Installation".
4. Install brake pads. Refer to BR "BRAKE PAD : Removal and Installation".
5. Securely depress the brake pedal several times.
6. Check a drag of front disc brake again. If any drag is found, disassemble the cylinder body and replace if necessary. Refer to BR "BRAKE CALIPER ASSEMBLY : Disassembly and Assembly"
7. Burnish contact surfaces brake pads and disc rotor after refinishing or replacing brake pads, or if a soft pedal occurs at very low mileage. Refer to BR "BRAKE PAD : Inspection and Adjustment".