OVERHAUL

1. Remove the brake caliper from the vehicle and place on a clean work surface.
2. Remove the inlet fitting from the brake caliper and drain all brake fluid.
3. Place a piece of wood in the caliper opening. Use a small amount of compressed air and force the piston from the bore.

   CAUTION
   DO NOT apply too much air pressure to the caliper bore. The piston may jump out, causing damage to the piston and/or the operator. Be ABSOLUTELY SURE to keep your fingers away from the piston while air is being applied.

4. Remove the piston boot retainer ring, if equipped. Remove the piston boot and seal. A pick tool can be used to extract the seal from the caliper bore. Be careful not to scratch the bore while removing the pieces.
5. Inspect the piston and the caliper bore for damage or corrosion. Replace the caliper and/or the piston if necessary.
6. Remove the bleeder screw and rubber cap if equipped.
7. Clean all of the parts with non-mineral based solvent and blow dry with compressed air. All rubber parts should be replaced.
8. Inspect the guide pins for corrosion, and replace if necessary. When installing the guide pins, coat them with a silicone lubricant.

   To assemble:

9. Lubricate the piston, caliper and seal with clean brake fluid.
10. Install the seal into the caliper bore, making sure it is not twisted in the bore groove.
11. Install the boot onto the piston, then position the piston into the caliper bore.
12. If the caliper is equipped with the parking brake, use a suitable tool to rotate the piston back into the caliper bore.
13. If not equipped with a parking brake, bottom the piston into the bore using your hand and a piece of wood to compress the piston.
14. Install the bleeder valve and tighten to 6–7 ft. lbs. (8–9 Nm).
15. Install the caliper to the vehicle and properly bleed the hydraulic brake system.