Need help with new welder : Lincoln TIG 300

[delangecycles]

I just picked up a 70's IdealArc TIG 300 machine for real cheap. The problem is that it's wired 3 phase. Anyone had any experience running a welder of this size off of a rotary phase convertor? Any other options?
Thanks

[tsutt]

The problem with that is the size of converter you would need. Look at the data tag I'd bet it requires 60-100 amp input @ 230 volts. 60amps at 230 is 20hp. Volts x amps\ 755watts=hp. Todd

[Fegenbush]

I wouldn't know this if we didn't do inventory at the end of the year a couple days ago, but we have one of those machines here. However, ours is a 480V. That's a pretty big machine to be running off a phase converter. I will check with our maintenance guy to see what he says and get back with you.

Cheers,

Matt

[delangecycles]

Thanks a lot.
I will check the stats on the welder to see exactly what I need to do and get back...

[Jack F]

I bought the same welder and it was wired for single ph. I use it that way and it works fine. I will check and see if I can figure out how it is wired. Jack.

[JW Peters]

Hello All, Here is an image from my Tig 300 manual. Good Luck. JP

[delangecycles]

Cool,
It looks as though I can wire it single phase. Thanks JW. Anyone know a good spot to get the manual? How is this machine? It seems like a workhorse.
Thanks
Again

[tsutt]

That diagram is only showing a change between 230&460 volts, not single and three phase. My guess is due to the age of the machine you could buy it either way, but not changeable. Todd

[Jack F]

I got in touch with Lincoln and gave them the ser. # and they sent me a copy of the manual at N/C. Still havn't looked at my wiring but will look at it today, Jack.

[JW Peters]

Hi Jack, Check the top left center of the control panel. My specs look like this. Also my wiring diagram is on the inside of the connection cover. This will give you the info you need to help make a power decision or sell for a profit to someone with 3 phase. JP

[Jack F]

You'r right, mine is a single phase only, dual voltage. Here are two pics showing the wire hookups.

[delangecycles]

Nice pics,
I just got time to have a good look at my machine and found out she is only single phase. The reason I thought it was three, at first glance, was that there was a 600V 3 phase power cord on the machine. My wiring is identical to yours Jack except one thing; the identity plate states that it is single phase 575 Volt 42 Amps. This is a little bumming because I would rather not use a transformer to step up the voltage but since my wiring is identical to yours I wonder if I could do the transformation to 230V even though it's not stated on the welder?
If comparing your photo with the manual diagram, what part do you move to get the higher (or lower) operating input voltage? The red square plate with 4 bolts on the left of L1 and L2 input? Is that the jumper plate? And where does it say the voltage?

Thanks Again