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Posted by Ignoramus5923 on March 23, 2006, 11:44 pm
Please log in for more thread options > I'm gonna vote NO. A stick welder has the electrical circuitry built
> into it to tolerate a dead short. That's what happens when the stick
> electrode gets stuck to the work piece with the ground clamp attached
> as well. Same thing when one is used to thaw a frozen pipe. The
> voltage droops and the metal involved gets warmer to very hot in the
> case of the small electrode. The resistance is fairly low.
I think that the OP was referring to starting the welder with
batteries, not to running it with batteries.
i
> In the case of shorting out 3 batteries in series, my expectation is
> that at least one would explode and perhaps all three. Let's say 700
> amps at 36 volts. These are liquid-filled electrolyte batteries. I
> predict steam generation between the battery plates. Better put a VERY
> sturdy acid-resistant shield over those batteries and have plenty of
> water and soda to neutralize the acid spill that I believe is
> imminent.
>
> Is there a ring gear anywhere on that motor?
>
>
>>I have a 1937 model Lincoln SA200 welder that never had a starter. I
>>have heard old welders say that they used start those on the pipeline
>>by getting one started and then using it to start the others by
>>connecting the welding leads from the running machine to the leads on
>>the machine they wanted to start whereupon the generator would be
>>motorized and the engine would start. Is this possible and could I
>>connect several (say 3) 12 volt batteries in series to the welding
>>leads and start my welder that way?
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>have heard old welders say that they used start those on the pipeline
>by getting one started and then using it to start the others by
>connecting the welding leads from the running machine to the leads on
>the machine they wanted to start whereupon the generator would be
>motorized and the engine would start. Is this possible and could I
>connect several (say 3) 12 volt batteries in series to the welding
>leads and start my welder that way?