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Tool Talk Discussion Forum

Lincoln SA-200 rebuild

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Richard Fazio

11-21-2003 04:57:47




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I have a stuck lincoln SA-200 welder. I'm pulling off the engine and am going to rebuild it. I have the engine completely unbolted from the armature but it won't come apart. Does anyone know what type of connection there is between the engine and the armature. Is it a splined shaft or is it a love joy type setup? Any guesses as to why it won't come apart? Thanks.




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Jim

11-26-2003 09:00:22




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 Re: Lincoln SA-200 rebuild in reply to Richard Fazio, 11-21-2003 04:57:47  
Howdy Richard

Well here is the toll free number for Lincoln Welder help line. 1 800-833-9353..... .
I have asked them many questions and they haven't failed me yet. Some of these guys have lived and breathed Lincoln welders...ENJOY!!!!! !!



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Fred OH

11-23-2003 10:37:27




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 Re: Lincoln SA-200 rebuild in reply to Richard Fazio, 11-21-2003 04:57:47  
If you order parts from the Lincoln dealer...they tell me that they (Continental) used chrome rings and the cylinders were hard also...and during breakin...you had to run it up to working speed for eight hours to seat the rings...or it would use oil. At least thats how it was with one of the fellows that I worked with that bought a new one years ago and babied it during the warranty period. Don't know about the problem at hand but sounds like the multitude of knowledge here is heading you in the right direction. Fred OH

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KX

11-21-2003 12:05:04




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 Re: Lincoln SA-200 rebuild in reply to Richard Fazio, 11-21-2003 04:57:47  
Richard,
I thought I remembered reading that it was a tapered fit but I just went to the archives and found that they were talking about a Onan engine....however the aramture could be the same requireing the same from your Continental engine.....Has the parts list helped you at all?

Going through the archives I also found a guy that said he had the largest welder bone yard in N.Mexico...as I need parts I emailed him but the mail was returned. Does anyone know of a good parts yard for SA200/Cont F163 engines???

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FRED

11-21-2003 10:41:44




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 Re: Lincoln SA-200 rebuild in reply to Richard Fazio, 11-21-2003 04:57:47  
After you remove the bolt you must turn the welder armature in the direction of engine rotation to remove it . FRED



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Richard Fazio

11-21-2003 11:28:51




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 Re: Re: Lincoln SA-200 rebuild in reply to FRED, 11-21-2003 10:41:44  
Which bolt? Is there a bolt through the armature shaft?



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FRED

11-21-2003 17:19:25




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 Re: Re: Re: Lincoln SA-200 rebuild in reply to Richard Fazio, 11-21-2003 11:28:51  
I mean the bolts conecting the front of the armutuer shaft to the flywheel. The best way is to remove the brushes,take the nut off of the exiter end of the shaft slide the exiter off of the shaft. Pull the main armuter with the moter. The bearing at the rear will proble need replaced. FRED



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Richard Fazio

11-21-2003 19:21:06




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 Re: Re: Re: Re: Lincoln SA-200 rebuild in reply to FRED, 11-21-2003 17:19:25  
That makes sense. I'll try that. Thanks for the info. It just seems wierd that you can't just pull them apart. I guess I'm thinking too much in the car mode. I'm used to pulling the transmision from the engine by just unbolting the bell housing.



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Joe Evans

11-21-2003 05:21:44




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 Re: Lincoln SA-200 rebuild in reply to Richard Fazio, 11-21-2003 04:57:47  
Richard: If memory serves me correctly, Lincoln (and Miller is guilty of this, too) didn't set up the SA-200 for easily parting the motor from the generator.

Right where the generator mates with the engine, there is a series of cooling air openings & fins in the generator's sheetmetal shroud. I think you have to cut one or two of these fins (cut on one end)on each side of the shroud and peel 'em back like a banana. This will let you get to the cap screws that hold the generator to the engine. We just did a Miller that was made in this way. I don't know how many cap screws there are--I would think at least four.

I believe during assembly, the generators frame/stator is bolt to the engine, then the armature is stuck in, all being done from the rear of the machine hence the set up.

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Richard Fazio

11-21-2003 07:43:32




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 Re: Re: Lincoln SA-200 rebuild in reply to Joe Evans, 11-21-2003 05:21:44  
Wow, that's wierd. I do see the slots your talking about. This setup did have a bunch of 9/16" bolts from the engine side into what looks like the generator frame. There is a flat plate bolted to the back of the engine where the bell housing would go. Then this plate is bolted to the generator with these 9/16" bolts. There were about 8 of these.



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JOE

07-22-2004 08:08:07




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 Re: Re: Re: Lincoln SA-200 rebuild in reply to Richard Fazio, 11-21-2003 07:43:32  
You went about the dis assembly completely backwards as most engine mechanics do when it comes to welders. Cutting slots in the fins completely changes the air cooling, shorting the life of a $2000.00 armature. The correct way is to pull the front end (front being toward the name plate)of the welder first, marking all your wires as you go. The stator then can be slipped off the front, leaving the engine and armature in place. Once you've unbolted the armature, you must turn it to line up the slots in the back of the armature and it will slip off.

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