On Vehicle Service
WARNING: Clean brake pads with a vacuum dust collector to minimize the hazard of airborne particles or other materials.
CAUTION:
- When cylinder body is open, do not depress the brake pedal because the piston will pop out.
- It is not necessary to remove connecting bolt except for disassembly or replacement of caliper assembly. In this case, suspend cylinder body with wire so as not to stretch brake hose.
- Be careful not to damage piston boot or get oil on rotor. Always replace shims when replacing pads.
- Burnish the brake contact surfaces after refinishing or replacing rotors, after replacing pads, or if a soft pedal occurs at very low mileage.
INSPECTION
Pad Thickness
- Remove a wheel with the vehicle lifted up, and then check the thickness of the pad from the inspection hole of the cylinder body. If necessary, check it with a micrometer.
Standard pad thickness: 11 mm (0.43 inch)
Pad wear limit: 2.0 mm (0.079 inch)
PAD REPLACEMENT
Removal
- If shims are rusted or show peeling of the rubber coat, replace them with new shims.
- Whenever the brake pads are replaced, the inner shim, the outer shim and the shim cover have to be replaced as a set.
1. Remove master cylinder reservoir cap.
2. Remove pin bolt, using power tool.
3. Suspend the cylinder body with wire. Then remove pads with retainers, inner and outer shims and pad return springs.
Installation
1. Attach the inner shim and shim cover to the inner pad and attach the outer shim to the outer pad.
2. Apply grease to the contact surface of pad retainer with the pads, then attach the pad retainer, pads and pad return spring to the torque member.
3. Install the cylinder body to the torque member.
4. Insert a main pin bolt (on the lower side) and tighten it to specification.
5. Check the brakes for drag.
CAUTION: Burnish the brake contact surfaces after refinishing or replacing brake rotors, after replacing pads, or if a soft pedal occurs at very low mileage.