I agree with John T. With the gen disconnected from the wiring, if you lift the armature brush (or the third brush if a 3 brush gen it is the one not 180 from the others) and put a strip of plastic under it (milk jug thickness cut to a brush wide strip) it will isolate the field from everything. It then should have infinite ohms (no connection) to the generator frame (more than 100K ohms). It should also have about 2.5 to 3.5 ohms measured between the F terminal and the Arm terminal. If either of these are different the Field is improperly connected. Jim
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Today's Featured Article - Stories From Old Farmer - by K. Pratt. Old Farmer, a.k.a. Dale Jensen began posting messages to our discussion forums at the grand age of 75. With extensive knowledge of farming and tractors, he valued the past and the ways that went with it. He shared these values with us until shortly before his passing. I spoke with Dale in his last days and requested his permission to share some of his stories with the readers of our magazine. He agreed, and provided the
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