Is It Time For A New Machine??

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I'm not sure whats going on.. All last week I was welding steel @ 200 or so amps..No problems at all..Yesterday I finished up a drum...Went to do a little side job...alum..When I went to switch the machine to A.C. ...The lever was "stuck" on D.C. ..I got it to move to A.C. but now it don't work..All I get is a little spark like there is no ground..Sorta like when you zap yourself for laffs...Put it back to D.C. Same thing..It will work D.C. but now you have to scratch start the tungestion the first time..After that it's fine..But still no A.C. What do we think???...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:It could be oxidation on the contact points inside the machine. The way you explained the seletor lever as being stuck in the DC position would support that hypothesis. It might be a matter of opening the bad boy up and polishing up the contactors inside. When I used to repair test equipment for the Air Force, a lot of switches and potentiometers would go untouched for years, and as soon as someone switched it out of its resting position of so long, things stopped working properly. Many times a bit of alcohol, and some exercising of the switch would extend the life for another calibration cycle, and sometimes we just had to order the part and switch it out. Wouldnt hurt to take a look inside.Miller Syncrowave 200Hobart Handler 140Thermal Dynamics Cutmaster 38E-Z Tube BenderPlasma Cam DHC2
Reply:Looks like you need to look under the hood... Maybe talk your boss into getting you a new welder? Me!
Reply:Originally Posted by Me!Looks like you need to look under the hood... Maybe talk your boss into getting you a new welder?
Reply:Originally Posted by zapsterWhat do we think???
Reply:HMMMM....How about getting your welding supplier to start letting you guys ''test run'' a few newer machines now while they check out the old one...I mean heck, you gotta weld!!Do you guys have a 350 Dynasty yet??Miller Dynasty 700Miller 350P with Aluma-pro push-pullMiller 280 Dynasty with expansion card Dynasty 200 DXMigMax 215 Enuff power and hand tools to create one of anything..... but mass produce nothing!!!
Reply:I'm going to finish up what I have to do..Then rip it apart...I'll take pics...I have to..I'll need them to put it back together.. ...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Always fun to gut something for the first time! Qucifer is probably correct. Replace the switch if needed. City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:Zap,with your celebrity status and world wide name recognition, I'd ask your Miller rep. if he may want to sponsor you with a Dynasty for advertising purposes.Every one want to weld like Zap, every one wants a Dynasty.
Reply:Originally Posted by pulserZap,with your celebrity status and world wide name recognition, I'd ask your Miller rep. if he may want to sponsor you with a Dynasty for advertising purposes.Every one want to weld like Zap, every one wants a Dynasty.
Reply:I'm guessin the contacts on your AC DC switch took a ........I hope you get to weld with some square waves.  David Real world weldin.  When I grow up I want to be a tig weldor.
Reply:I think I can help you there is a guy with a very similar problem in this thread and he thinks he might have solved his problem.http://www.weldingweb.com/vbb/showthread.php?t=14868Glad to be of HelpWashman