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Welding Shop

Lincoln SA 200 not welding


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  #1  
Old 08-24-2010, 09:43:16 PM
cocomunk cocomunk is offline
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Default Lincoln SA 200 not welding

Just got a old sa 200 from my dad, this thing been park for a few years now,Not sure of the year or code as it is a Canadian built one, the only thing on the the tag, is spec = k6090 , serial = 22834, model = sa-200 .Got the motor running fairly nice got the 110 outlet going but it will only do a small arc at the welder,even when the engine is rev up manualy.I did clean
both armature , there is some small arc at the brushers when running.I did excite the exciter with 12 volts,did check the rheostat and it reads from 0 to 64 ohms when turning from min to max .But the one thing that got my attention was when i've got the motor running and turn the rheostat,the motor runs smooth on 0 but when i turn it up the motor start running ruff
like its got a load on it.Did check all the wires and all seem to look good,but someone did play with the wires in the exciter part and not sure if all is connected right, tried to find a picture f0r it but nothing realy shows me where they all go, could someone tell me where there suppose to connect


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  #2  
Old 08-24-2010, 11:00:07 PM
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John in Maryland John in Maryland is offline
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Default Re: Lincoln SA 200 not welding

Don't know what to tell ya. Have you check Lincoln's site for a manual. It should have the wiring diagram.

J.I.M.
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Old 08-25-2010, 11:23:50 AM
clintonmetalcraftsman clintonmetalcraftsman is offline
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Default Re: Lincoln SA 200 not welding

The wires should be different gauge the heavy one goes to the higher setting just work on down from there, one goes straight to the positive lug here are a couple of pics of my machine
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Old 08-25-2010, 06:22:24 PM
cocomunk cocomunk is offline
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Default Re: Lincoln SA 200 not welding

Will go take picture of the front of the exciter and this way you can see the wires and hopefully see if they are connected to the right place

Thanks
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Old 08-25-2010, 09:33:03 PM
cocomunk cocomunk is offline
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Default Re: Lincoln SA 200 not welding

here is a picture of the front of the exciter and a drawing i made of what the wiring seem to be . From my point of view something doesnt look right ?????, maybe I'm wrong so hopefully somebody here can help me out

Thanks
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Old 08-25-2010, 09:43:52 PM
cocomunk cocomunk is offline
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Default Re: Lincoln SA 200 not welding

forgot to put this lol

1- #1 wire is a soft wire goes to right brush
2- #2 wire is a black wire that comes from big armature at the back and goes to right brush
3- #3 & #4 connect together 3 is from bottom right exciter coil and 4 is from middle right exciter coil, both hard wire
4- #5 is a soft wire from bottom of right exciter coil connected to # 10 soft wire from the middle of the left exciter coil
5- #6 wire is a red wire that comes from the big armature and connect to #7 to the middle hard wire from the left exciter coil
6- #8 is the hard wire from the bottom left exciter coil and connect to the left brush
7- #9 is a soft wire from the bottom left exciter coil that connect to the left brush


thanks
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Old 08-26-2010, 11:53:49 AM
clintonmetalcraftsman clintonmetalcraftsman is offline
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Default Re: Lincoln SA 200 not welding

Ok its the exciter wires you are looking at, it looks like there are two wires that go to each side plus the wire from the brush, here is a pic of mine hope this helps, it kind of sounds like there may be some kind of short in your machine that is causing this problem. you may want to call an expert for advice http://www.billswelderrepair.com/ I bet this guy has seen it all
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Old 08-26-2010, 02:09:15 PM
Dempster Dempster is offline
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Default Re: Lincoln SA 200 not welding

Bill's site has SA200 & SA250 wiring schematics

http://www.billswelderrepair.com/schematics.html\

There is a section devoted to the SA200 on AWS forum too.

http://www.aws.org/cgi-bin/mwf/board_show.pl?bid=44

Make sure that is the complete serial number otherwise it's a old one 1941 should have D in front of that number. Others are a 6 digit number.

http://www.billswelderrepair.com/WELDER_AGE.html

Enter the code number at the Lincoln site for the correct manuals for it. If code number isn't on the tag look for it stamped on the generator barrel usually in front of where the starter is mounted on that side.

http://www.mylincolnelectric.com/Cat...ualsearch.aspx

http://www.lincolnelectric.com/produ...e/partsnav.asp
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Old 09-02-2010, 06:22:46 PM
cocomunk cocomunk is offline
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Default Re: Lincoln SA 200 not welding

Finaly got the exciter wire all sorted out, Thanks to you guys with all the info , but the problem is still there.So I pull the exciter end right off to make sure all wires were good.Now how do i go about to check the shunts,do i do a reading with the ohm meter from soft wire to soft wire and hard wire to hard wire.

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Old 09-02-2010, 09:17:20 PM
cocomunk cocomunk is offline
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Default Re: Lincoln SA 200 not welding

sory not the shunt but the EXCITE COILS
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Old 12-22-2010, 08:41:40 PM
brandonday87 brandonday87 is offline
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Default Re: Lincoln SA 200 not welding

i have a sam 400 that doesnt weld or stay started very long it runs for about 30 seconds then slowly dies. also the control panel has a few cut wires #2 #8 #21 #31 #32 are all cut. anny idea where they go?
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