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Just bought a dinasour! (welder)

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Richard

04-12-2001 03:52:48




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We closed down one of our shops and I bought a very old Lincoln crackerbox from the company for $100 bucks. It's the old, round top, 300 amp AC 250 amp DC machine with a reverse dc, straight dc, and AC switch. It has the long, horizontal scale with the crank dail above it. She weighs about 3-4 times more than these new ones and I imagine why is it's all copper windings.

I ran a 50 amp/240 volt circuit with #6 when I built the shop. That circuit is about a 30' run from the box to the plug. I did this for a standard crackerbox before I knew I was going to buy this antique. The front of the Linclon machine says it requires 89 amps @ 240. That sure seems a little high since most crackerboxes I've seen require 50 amps or less @ 240v.

I guess I should be fine still. I just cranked it up to 150 amps DC and did some burning and it did not trip the breaker. I've read where the duty cycle portion helps on the wiring so you can get away with this stuff if you don't get carried away. Any input?

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Scott Geen

04-14-2001 05:07:55




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 Re: Just bought a dinasour! (welder) in reply to Richard, 04-12-2001 03:52:48  
Richard , The 50 AMP breaker is protecting the #6 wire in your shop. As long as the welder doesn't trip that breaker , I wouldn't worry about it.



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Steve U.S. Alloys

04-13-2001 05:37:14




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 Re: Just bought a dinasour! (welder) in reply to Richard, 04-12-2001 03:52:48  
We recently hired a young man as another one of our in plant maintenance welding instructors. I went with him for his first class at a paper bag plant. They had one of those welders. This one even still had legible markings for setting adjustments. They do run smoothly.

A longtime customer of mine recently gave me an old Lincoln engine drive. One of the old hand crank versions. I haven't picked it up yet or looked it over closely so I don't know the model number. You set the amperage according to engine RPM's. I've seen a lot of things in 24 years on the job but don't recall ever seeing one of these old engine drives used.

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John Ne.,,hey Steve

04-13-2001 22:11:17




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 Re: Re: Just bought a dinasour! (welder) in reply to Steve U.S. Alloys, 04-13-2001 05:37:14  
the first shop I worked in had the welder on wheels, it was in a 3x3x4ft wooden case, open the lid, had two knife switches, lo-med-hi,,,, and a rotating knife switch for changing amperage... somebody had added a fuse box on the side for on-off. It worked well, but don't remember seeing a name on it. Cables were wound on hangers on one end. John



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Joe Evans

04-12-2001 20:31:40




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 Re: Just bought a dinasour! (welder) in reply to Richard, 04-12-2001 03:52:48  
Yeah, Yeah, Yeah, I've heard it all before! The rating you are reading is worst case scenario. Max amps input at max out output. If we followed that we would never be allowed to hook up our welders in a customer's plant. You've got a good deal and a machine that will be an heirloom. We've run (4) machines from one 60A receptacle many times.



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Tyler(WA) Ragging on electrical code....

04-12-2001 10:16:12




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 Re: Just bought a dinasour! (welder) in reply to Richard, 04-12-2001 03:52:48  
Yep, that old dinosaur is going to need way more current than you're set up for. Tell ya what I'll do. Out of the kindness of my heart, I'll take it off your hands and pay you for the freight to boot. You don't get offers like that everyday. ;-)

If they made them like that today, you and I together couldn't afford one. It sounds like you got an incredible deal. Don't let that one go.



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Franz

04-12-2001 09:02:28




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 Re: Just bought a dinasour! (welder) in reply to Richard, 04-12-2001 03:52:48  
That dino is probably named Idealarc. The 89 amps on the nameplate is what it pulls welding at max output. You'll probably never use that kind of current. As long as you observe the duty cycle, chances are pretty good you'll pass the machine on to your son so he can use it for his lifetime.
OK, now the guys can come on and rag about electrical code and the inspector in their area.



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Bus Driver

04-14-2001 19:03:36




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 Re: Re: Just bought a dinasour! (welder) in reply to Franz, 04-12-2001 09:02:28  
I have one of these welders. Mine was made in 1957. Never a moment's problem. These things weigh 400# or more. Mine has power factor correction capacitors built in and the nameplate amperage is a bit less, as best I remember. Mine is on 60 amp circuit and has never overloaded the circuit. My experience is with very few different welders, but many tell me that this is as good as transformer type welders get. As best I remember the duty cycle is 60% at maximum amperage and 100% at 150 amps or less.

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