munirabbasi Posted October 9, 2016 Share Posted October 9, 2016 Hello world hercules expertise Caution: Do Not jumper F and E pins of AC external power in cords or Aircraft, always jumper in GPU why it is , any safety please describe in detail. Regards Munir Abbasi Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted October 14, 2016 Author Share Posted October 14, 2016 Hello tinny clark and hercules expertises Please reply stated question regarding AC EXT interlocking system. Regards Munir Abbasi home of hercules Pakistan Quote Link to comment Share on other sites More sharing options...
tinyclark Posted October 21, 2016 Share Posted October 21, 2016 From what I understand, there are two different power units that can be used on the herc. The power units of one type have pins E & F shorted, the other does not. So, it could cause a problem with the power unit that doesn't have the pins shorted inside the unit. I found one thing in a book and I cannot remember which one, but all it stated was what I just wrote. I do not have any books for the ground power units. Quote Link to comment Share on other sites More sharing options...
n1dp Posted October 22, 2016 Share Posted October 22, 2016 The late Dan Wilson used his vast experience to clarify this a few years back. Got me corrected too, as this old Aviation Electrician goofed it up as well. Never had to repair the external power circuit; pretty bullet proof. http://c130herculesheadquarters.yuku.com/topic/520/Epin-question#.WAqYzslHQoA Quote Link to comment Share on other sites More sharing options...
tinyclark Posted October 23, 2016 Share Posted October 23, 2016 To the point. Quote Link to comment Share on other sites More sharing options...
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