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Disc Caliper - Rear: Disassembly

  1. With caliper held in a vise, remove 2 mounting sleeves and 4 bushings from caliper and discard. Remove brake shoes and lever return spring. Using a shop towel to catch piston and brake fluid, rotate lever back and forth to move piston out of caliper housing.
    NOTE: If piston will not move out of housing, remove lock nut, lever, seal and anti-friction washer. Use a wrench to turn activator screw until piston pops out of housing.
  2. Remove piston seal assembly and balance spring. Remove lock nut, lever, seal and anti-friction washer. Push screw out of housing and remove piston seal, copper washer and boot.
  3. Thoroughly clean all parts with denatured alcohol. Inspect caliper bore for scoring, nicks, corrosion or wear. Use crocus cloth to polish any light corrosion. Replace if necessary. Check outer diameter of piston for nicks, scoring or damaged plating. If surface defects are visible, replace piston.
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