TM 10-6640-215-13 5-11.  REMOVE/INSTALL SYSTEM PIPING (TYPICAL) WATER SYSTEM). This task consists of: a.  Removal   b.  Installation INITIAL SET-UP: Tools required General Mechanics Tool Kit, (Appendix B, Section III, Item 2) Material Required Teflon Tape, (Appendix E, Section II, Item 157) Reference TB-SIG-222, Soldering Methods and Equipment REMOVAL Remove Water System Piping.  See figure 5-7. a. Disconnect union(s) closest to elbow, valve, coupling or piping component to be removed. b. Remove pipe clamps, supports, and braces from pipe section as required. c. Remove pipe section from unit. d. Unsolder/unbraze defective elbow, valve, union, couplings or pipe component from pipe section. INSTALLATION Install Water System Piping.  See figure 5-7. a. Solder/braze replacement elbow, valves, unions, coupling or pipe components to pipe section. b. Position pipe section in unit. c. Connect unions to pipe section. d. Install braces, supports and pipe clamps on pipe section as required. e. Prepare and operate water system using internal water tank as source in accordance with procedures listed in paragraph 2-8. f.   Inspect for leaks and check for proper operation. 5-12