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Forney C4 Welder

jontar

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Joined
May 1, 2012
Messages
199
HI Does anyone know where you can get some info on this model of forney welder, I just picked up one.
forneyw_zps33deaf13.jpg.html
 
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zkling

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Jan 23, 2007
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16,939
Can you post a pic of it? What info are you looking for? I'm not super familiar with the Forney stuff. I've seen a C-3, 5 and 6, but never a 4. All the ones I have seen were red, basic arc welders. The amp/heat settings were changed via different plugs in the front of the unit. I think it would be really hard to break one. They are super simple transformer machines.

EDIT, I looked at your code, hope you don't mind, here are your images. :beer:

forneywelder_zpsaf24cd5f.jpg


forneyw_zps33deaf13.jpg


forney_zps4dcdc4ec.jpg


P.S. You may want to change the privacy settings on some of your images. The other person in those pics may appreciate that. ;)
 
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andywander

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Mar 24, 2012
Messages
359
What do you want to know? It is a basic 180A AC arc welder, but with the added feature of current-limiting; it will only draw something like 56 amps from the AC line if there is a dead short between welding leads.

You can use it with a carbon arc torch as well, and even a soldering iron if you can find the Forney iron.

You will notice that there is a HI gnd and a LO gnd socket, and each tap socket has 2 numbers near it, one corresponds to HI and one to LO amps.

I have a 1958 Forney Welding manual that came with my C-5B, and it does not give a whole lot of info on the individual welders. Lots of info on how to weld, though.
 
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jontar

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May 1, 2012
Messages
199
Just interested in the wiring diagram mainly, but nobody seems to have that, atleast on the web.

Thanks changed settings.
 

zkling

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Joined
Jan 23, 2007
Messages
16,939
Maybe check inside of the covers? Most welders I have pulled apart have a basic schematic inside one of the covers. Are you trying to figure out how to wire it for input power?
 
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jontar

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Joined
May 1, 2012
Messages
199
Finally after a couple months, I got the Forney welder going, I wired the weird crowfoot receptacle with a #6/3c NMD90 (loomex) in the garage from the 125A subpanel. Added (2) 230v cooling fans inside the welder and had to replace the 100mfd 370vac continious duty capacitor located inside the case. The welder wouldn't strike an arc very well, if at all with the faulted cap, I tested the original cap (using my Klein 2000 DVM) and it would only charge to 18mfd. Now with the cap replaced it starts on the first strike. Just finished repairing my skidoo trailer. I order a 5LBS box of each 6011.6013.7014.7018 from Forney and tested alll four boxes.
 

JimDon

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Joined
Jan 23, 2007
Messages
602
Don't forget the 7018ac. It will weld with that just fine. I don't keep it around unless I need it, then I buy a fresh box to insure that it will strike and weld nicely. The longer it sits around after the box is opened, the more moisture it absorbs, and then it is harder than hell to get it to strike nicely.
Enjoy,
That thing should last you a lifetime.
JimDon
 

ManitobaGuy

New member
Joined
Jun 9, 2017
Messages
1
Finally after a couple months, I got the Forney welder going, I wired the weird crowfoot receptacle with a #6/3c NMD90 (loomex) in the garage from the 125A subpanel. Added (2) 230v cooling fans inside the welder and had to replace the 100mfd 370vac continious duty capacitor located inside the case. The welder wouldn't strike an arc very well, if at all with the faulted cap, I tested the original cap (using my Klein 2000 DVM) and it would only charge to 18mfd. Now with the cap replaced it starts on the first strike. Just finished repairing my skidoo trailer. I order a 5LBS box of each 6011.6013.7014.7018 from Forney and tested alll four boxes.

What size of circuit breaker did you use for the welder? (have the identical welder, planning to wire it up over the next month)
 

Cope

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Joined
Mar 8, 2013
Messages
2,067
Location
Houston, TX
What size of circuit breaker did you use for the welder? (have the identical welder, planning to wire it up over the next month)

According to the welder it's 32 amps input. I'd go with a 30 amp on either 10 or 8 gauge wire, because you won't likely max it out.
 
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