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TM 10-6640-215-13 4-19.  REMOVE/INSTALL COMPONENTS OF MAIN POWER PANEL This task covers: a.   Disassembly c.   Installation b.   Removal d.   Assembly INITIALSET-UP: Tools Required General Mechanics Tool Kit, (Appendix B, Section III, Item 2) Soldering Gun, (Appendix B, Section III, Item 1) Fusepuller, (Appendix B, Section III, Item 1) Socket Wrench, (Appendix B, Section III, Item 1) Materials/Parts Required Solder, (Appendix E, Section II, Item 133) General Safety Instructions WARNING ELECTRICAL SHOCK Before  performing  any  maintenance  actions  on  electrical  equipment,  ensure  all electrical  power  has  been  turned  off.    Death  or  serious  injury  may  occur  from failure to do this. DISASSEMBLY Disassemble Main Power Panel Assembly.  See figure 4-7 a. Turn off all equipment. b. Open all circuit breakers located in the panelboard. c. Shut down the generator. d. Disconnect power input cable from the Petroleum Laboratory. e. Remove six mounting screws, and remove outside panelboard cover. e. Remove six screws and remove circuit breaker cover. REMOVAL 1. Remove Main (A1CB1) Circuit Breaker.  See figure 4-8. a. Loosen six terminal screws. b. Tag and disconnect electrically all wires and busbars. 4-38


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