Go BottomWelder generator burning up tool switches
 | earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan 
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2009-06-28 163693
I bought a used portable Miller welder generator with a 2 cylinder Onan engine.
It has two settings and outlets for 110VAC. When at an idle it produces 110 but not a lot amps. The other outlet requires flipping a toggle swith to "power while welding" which revs up the engine and produces a lot of power.
I went to use my 6" bench grinder. The grinder was spinning fairly slow at engine idle and slowed even more when I reid to gring=d a small bolt, so I kicked the gen. up to more power---all of a sudden I heard a high pitched "screaming" sound inside the grinder switch and the grinder would not spin---then the switch started smoking. And now it won't run at all.
This high-pitched screaming sound also happens while welding---comes from the actual arc being made.
So I tried a belt/disc sander. Same thing--noise, smoke not working any more.
Note that my other tools like a 9" angle grinder, 1/2" drill, 4" angle grinder and sawz-all all work fine.
Could it be the type of motors (brushless?)? Both the bench grinder and the sander are made by Crapsman...I mean, Craftsman.
Anyone have any ideas--other than a "loose nut" (or as Kenny says a "lose nut") behind the switches?
(In case anyone cares or remembers, I had a 5000 watt welder generator that stopped working. Would have cost more to fix it than replace it with new. I put it on Detroit-area Craigslist for $200 and a guy in Mexico found it on-line. He sent his brother who was here to buy it and ship it to him.)
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Add PhotoWelder generator burning up tool switches
 | kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina
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2009-06-30 163722
duplicate post. ....
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Add PhotoWelder generator burning up tool switches
| earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan
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2009-06-30 163749
Kenny this duplicate didn't get here from me---I noticed there were a lot of ghost duplicates the last few days. This be one. ....
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