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RE: 3000W Chinese Gensets Info.
Well I haven't really been in this thread, since the first couple pages. That's a good sign, as that means my 'powerwise3500' has been running till now. I haven't been able to find a way to search just this thread, and reading all 800 pages now.. eh... So maybe someone has some thoughts on the problem.
-My brother has a 'Wen' brand, almost identical to my Powerwise. His with only 50 hours on it started acting up. Start up motor, let sit for a second, and the AC pilot lights would start to turn on, sounded like the motor was laboring (like there was a load connected, but there wasn't) and then the pilot lights would go back out. This would repeat as long as you left it run.
-I suspected the AVR, so I pulled it from mine, and installed in his. This time the pilot lights stayed lit, but the motor still sounded like it had a load. I left it run for a bit, till i smelled 'burnt wires' lol.. and shut it down. I ordered a new AVR and installed, but it still acted like the original AVR. When I pulled the end cap back off the head, it looked like the armature windings got hot, had some black coloring.
-So I put my original AVR in my powerwise. Fired it up to use it one weekend, it was running fine for a while. We were sitting in the trailer with AC lights on, no big loads, all of a sudden the lights started dimming, and then went out. Went outside only to smell burnt wire coming from my genset.
-looks lime my armature got hot enuf to acutally melt some of the plastic forms in it.
-I tested my powerwise brush rings, iirc, I had open across the 2 brush rings, and also open from either ring to ground.
-I tested the WEN, and can't remember the exact readings, but was something like 8ohm across the two rings, and I had like 2ohm from one ring to ground, and 6ohm from the other ring to ground.
I suspect my arm is burnt thru somewhere, and my brothers wen is shorted to ground somewhere.
So the questions are: (I found some testing web pages, but nothing specific to the 3kw heads)
-What resistance readings should I have on the Armature, and on the stator?
-Is there any test I can do on the AVR to verify they are good?
-Has anyone found a parts supply for these? I found some complete heads on ebay, also norther tool, but haven't been able to find just the armature.
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TeamSlacker
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11/12/09 09:42am |
Tech Issues
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