??Welder Settings ?

[e016332]

Good evening everyone.
I have a hobart welder. It is a surplus machine bought as is. I just got it running and I'd like to see if it will weld. It can be set for CC or CV. What do you set it on to stick weld?
The frequency meter is busted and not connected and it is also missing a plug in part ( looks like a relay / or like a truck flasher)
Does anyone know if these things need to be working in order to stick weld with it? Thanks for any input Robert

[DrIQ]

Robert you would set the machine to CC for stick welding.

Do you have a model or spec. number of the machine ?

You mentioned a frequency meter is it a military engine drive?

[e016332]

Yes Sir it is a military machine. Spec # 6409-1
Mod DCC-353-P and it is a engine drive.350 Amp
Volts CC40 / CV34

[e016332]

Thanks for your help DrlQ.. I will try this boy out in the morning. Working nights right now .. but I just scrapped together some old whip leads.. I have called around some , looking for a manual for this thing but I have not had any luck yet. I hope it will weld just like it is , but I am not to confident because the AC outlets were dead on it.. but with freqency meter all disconnected,,,
( looked like several wires hanging loose etc. ) Thanks again Robert

[DrIQ]

Robert, You should be able to stick weld on CC without the meter or the relay just make sure that you don't have any loose or disconnected wires from the missing meter that could short. I haven't seen one of those in 15+ years.

[e016332]

Well it was manufactured in 1984. It had a large air compressor on it when I got it. I have taken it off. I had posted when I first bought it and some of the guys here told me what it was. The engine is in excellent shape ( it needed a strater & alt )so I am hoping the welder is in as good a shape. Is it rare to have a freqency meter on an engine drive ? Thanks again Robert

[e016332]

What do you think the chances are of the machine putting out, even with the AC recep's not working. I have not checked them in the back, or the breakers. Thanks Robert

I will set it on CC and try it.

[Franz]

The freq meter doesn't have anything to do with the welder part of the machine, it's strictly there to enable you to set the engine speed for 60 or 50 hz when you're running it as a generator.
Was the freq meter a vibrating reed type, or swing needle?
As far as the generator putting out that should be relatively easy to check, and the Experts should be able to come up with a schematic if there is a problem. Many militart TMs are also available on line now.
Just make sure to tape off any leads that aren't connected, so nothing shorts out and frys.

[e016332]

The Freq meter is a vib reed type instrument ( or what is left of one ) Thanks for your reply Franz

If the engine is turning too fast it will produce too much electicity ?

[cope]

Originally posted by e016332
The Freq meter is a vib reed type instrument ( or what is left of one ) Thanks for your reply Franz

If the engine is turning too fast it will produce too much electicity ?

Too fast and too much voltage and high frequency, and too slow you get lower voltage and lower frequency. My old Lincoln would run no-load around 61 hertz but with a load it ran at 60 hertz.

[e016332]

Good afternoon,
I set the machine on CC,plugged in the leads,stuck a rod to some scrap and ....... nothing. I had the machine rev'ed up but it is not putting out anything. The wires that were connected to the freq meter appear to be connected to the rear portion of the welder ( sort of where your brushes would be on a power tool / other end of them )as I said earlier they are not connected.

How can some big checks be made to tell if the windings or armeture are faulty. It has several wires coming out of it. I can get an volt / ohm meter.. and possibly a meg meter if I need it. thanks for any help. Robert

[e016332]

No takers on the welder check out?? Sure thought someone would have some suggestions. Maybe I shouldn't be thinking huh

[DrIQ]

I looked through my files and didn't find anything that would be of help, I've welded with them never had to repair one. Maybe Rock can help you on this.

[Franz]

I'm totally not conversant with that machine, so the best I can do is give you some suggestions.
Locate the exciter section of the welding generator, and check for DC voltage there. You may be able to restore the welding voltage by flashing the exciter.