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Newb Welder - Need Little Help

 
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upmm019
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Joined: 18 Aug 2008
Posts: 248
Location: Sioux Falls, SD

PostPosted: Sun Feb 08 15 4:59 am    Post subject: Newb Welder - Need Little Help Reply with quote

So its been a very longtime since I welded.

I just got a Lincoln SP-140T Mig Welder.

I am trying to weld some 1/8" angle stock and need to understand the correct set up on this machine.

I am using Gas so what should my gas be set too?

I am trying 3.5/D but I am getting lots of crackling/popping.
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ecave
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Joined: 20 Sep 2013
Posts: 38
Location: Benson, NC

PostPosted: Sun Feb 08 15 5:59 am    Post subject: Reply with quote

You may have to speed your wire up just a bit. I will run it about 4.
If you are not in the wind, you can get by with about 15cfh but I would run any lower than that.
Can you post a pic of your weld?
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Smokin Mike
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Joined: 02 Dec 2008
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Location: Winston-Salem, NC

PostPosted: Sun Feb 08 15 6:21 am    Post subject: Reply with quote

Not having a good ground can cause it to crack and pop also. Make sure your grounding surface and where you're welding is clean.
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whall
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Joined: 13 Jan 2014
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Location: Rockwood, TN

PostPosted: Sun Feb 08 15 9:47 am    Post subject: Reply with quote

Check the polarity, it could be set-up to run flux core. That would cause a lot of crackling/popping
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