Machine Testing Procedure version 2/11/97 The following tests should be done after every major machine assembly step including mounting plate, wedge plate, dome, and cylinder installation etc. . ring/hi-pot PF coils . ring/hi-pot TF when possible . check TF turn-to-turn/first-to-last isolation . ring/hi-pot OH . check OH coax for joint resistance and ground fault . check all heaters and thermocouples . check heater continuity/resistance . check thermocouple operation . check for ground faults . check OH flux loops for continuity and ground fault . check OH position coils for continuity and ground fault . check cooling lines and connections . check vacuum vessel electrical isolation