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Old 03-31-2014, 10:44 AM   #1
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1986 25' Sovereign
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Welding on frame harm electric systems?

I need to weld some new steel to the main frame rails on my 1986 Sovereign. Is there any potential danger to the 12v or 120v systems from the welder?

Thanks
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Old 03-31-2014, 11:02 AM   #2
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I have never had any problems.. Not on computer equipped cars either. It would be a good idea to lift the battery negative terminal and it is good practice to put the welder ground connection as close to you work area as possibe.

Now the disclaimer. I am strictly an amateur welder. Just because I haven't had problems is no assurance your whole trailer won't disappear in a puff of smoke
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Old 04-02-2014, 05:38 AM   #3
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Rick,
Thanks for the response and the tip on disconnecting the negative lead. If your trailer has disappeared in a cloud of smoke that's good enough me.
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Old 04-08-2014, 10:07 PM   #4
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It is important to keep the ground as close as possible to your weld. If your ground allows current to go through bearings or other surfaces like them it can ruin them by creating an arc across them. That is why the previous responder gave the good recommendation of removing the negative lead of your batteries. It keeps any chance of it making a complete circuit.
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Old 04-09-2014, 05:27 AM   #5
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Following Rick's advice, I finished the welding on Saturday. Electrical systems are fine and the trailer still exists.

Rick, in my previous post I meant to say "If your trailer hasn't disappeared in a cloud of smoke that's good enough me.

Thanks again
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