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I believe the fuse protects the stator if the diode bridge fails. The MOV protects the diode bridge. So the fuse is a back up in case the diode bridge fails.I am confused by the MOV addition. I thought that the quad winding issues were resolved by the slow blow fuse modification alone.
Instead of ordering the MOV's I'd be happy to mail you a couple of them. I only used 1 of the 10 I purchased....I was going to buy the parts last night on amazon but ran out of time...
So there is an "impproved" A1? What year was it installed?Perfect explanation KLOPPK!
The big problem in the beginning was that NOTHING in the manuals suggested to the repair personnel what the CAUSE of the problem was. So when people found the Quad winding burnt out, they simply put in a new stator, or even a main AC. Started it up, and had the same problem. Some units even did it multiple times! Part of the problem is that repair personnel are fixed on the SOLUTION, and forget the CAUSE. Putting in the quad protection fuse allowed the government to continue to use poorly designed A1's until the stock ran out. THEN the "improved" A1 could be procured.
I didn't say it was installed. I said "Then the "improved" A1 could be procured". Big difference. As far as I know, it was never "procured". But the only way to tell, would be to check the spec's in the FEDLOG, or maybe compare and OLD volt reg, to a new one. The part number "SHOULD" be different. Can someone look at a volt reg and tell me the part number thats on it? We can take a gander. I have and OLD parts manual to check it against.So there is an "impproved" A1? What year was it installed?
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