Disassembling Caliper

Fig. 6 Removing piston from caliper:

1. Remove caliper as outlined above.
2. Disconnect hose from steel line, remove U-shaped retainer and withdraw hose from frame support bracket.
3. After cleaning outside of caliper, remove brake hose and discard copper gasket.
4. Drain brake fluid from caliper.
5. Pad caliper interior with clean shop towels and use compressed air to remove piston, Fig. 6. Use just enough air pressure to ease piston out of bore. Do not blow piston out of bore. Do not place fingers in front of piston in an attempt to catch or protect it when applying compressed air. This could result in serious injury.
6. Carefully pry dust boot out of bore.
7. Using a small piece of wood or plastic, remove piston seal from bore. Do not use a metal tool of any kind to remove seal as it may damage bore.
8. Remove bleeder valve.