TM 10-3930-669-20 11-4.  MASTER CYLINDER REPLACEMENT. This task covers: a.  Removal b.  Cleaning/Inspection c.  Installation INITIAL SETUP Tools and Special Tools Tool Kit, General Mechanic's: Automotive (Item 1, Appendix B) Wrench, Torque (O to 175 lb-ft [0-237 N-m]) (Item 2, Appendix B) Materials /Parts Cap and Plug Set (Item 5, Appendix C) Solvent, Drycleaning (Item 20, Appendix C) Washer, Lock (2) Equipment Condition Engine OFF (TM 10-3930-669-10) Parking brake applied (TM 10-3930-669-10) Wheels chocked (TM 10-3930-669-10) Cab floor plate removed (Para 15-12) Master cylinder pressure switch removed (Para 7-17) WARNING Adhesives, solvents, and sealing compounds can burn easily, can give off harmful vapors, and are harmful to skin and clothing.  To avoid injury or death, keep away from open fire and use in a well-ventilated  area.   If  adhesive,  solvent,  or  sealing  compound  gets  on  skin  or  clothing,  wash immediately with soap and water. NOTE Cap and plug all lines and fittings when disconnected. (1)   Remove fitting (1) from fitting (2). (2)   Separate bellows (3), with linkage (4), from master cylinder (5). (3)   Remove three screws (7), nuts (6), and washers (8), and master cylinder (5) from bracket (9). 11-10