Posted by fixerupper on August 10, 2018 at 18:27:27 from (108.161.63.136):
Generator off a 630 Deere pos ground quit charging. It's a rebuilt from Deere I put on maybe 7 years ago or more. It will motor but it will not charge with the field grounded. I ran a ground jumper from the regulator frame to a good ground on the tractor frame and I ran a ground from the genny frame to good tractor frame ground but that didn't change anything. I pulled off the end cap and this is what I saw. It's not very clear, the top bar on the commutator has a burned spot in the middle. The brushes have not been making good contact across the commutator. All in all there is not a lot of wear but it looks to me like the rebuild job was done pretty fast and incomplete. Is this genny junk or is there some salvation in it? I could turn the commutator in a lathe to true it up but I don't think that will help me out.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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