Lincoln Invertec V275-s

[bczygan]

Lincoln Invertec V275-s

Just got home with this for $100 off CL.

He said the guy he got it from said it works.

Came with stick leads but 8AWG 4 conductor power cord is cut off.

Set up for 1PH 230V

Kind of beat up and no handle......but!

2015 date.

Fuse isn't blown.

See photos.

Bill

 

[trackwelder]

That’s a sweet deal if it works

 

[bczygan]

Opened the cover to see how the cord attaches.

Missing screws. It's been open before.

Dusty inside. It's been used for sure.

Power cable sure is fat!

Bill

 

[bczygan]

Some photos:

Bill

 

[Spiffers]

Tagged to see how this unfolds. It is very relevant to my current interests (looking at welders on Craig's List).

 

[Spiffers]

Some photos:

Bill

I wonder why they cut the plug off like that.

 

[bczygan]

I wonder why they cut the plug off like that.

Me too!

This is my third time taking a chance on a used Lincoln. The 3200HD MIG deal turned out OK. This one I was a little leery of. The guy had it on CL for $200, saying he got it in trade and needed $ for a trip up north this weekend.

So I went out at midnight to get it. Left the wife asleep and unknowing.

I was only willing to risk $100 for it. We'll see how it ends up.

First job is getting a cord on it and a circuit.

I wonder if I could temporarily rig up a 40A circuit to test it out at a low power setting, just to see if it will power up?

Bill

 

[stefanbrontsch]

.

Sent from my SM-G950W using Tapatalk

 

[bczygan]

My fear is that the cord was cut off by a repair technician, because the unit was not repairable. A local tech says he does that.

It turns out that this was the welder I was looking at a few months ago when it was listed at $500, so I'm hoping if it had that much perceived value then, that it was a working item.


We'll see though.

Bill

 

[LXCam]

Very cool bill. Certainly a much better deal (maybe) than that monstrosity you were considering a while back. I wouldn't drop a dime into it until you know it's working. Just rig up an old extension cord to a two pole 15 or 20 amp circuit if you have one and set it in low and see what happens.

 

[bczygan]

Very cool bill. Certainly a much better deal (maybe) than that monstrosity you were considering a while back. I wouldn't drop a dime into it until you know it's working. Just rig up an old extension cord to a two pole 15 or 20 amp circuit if you have one and set it in low and see what happens.

I have a 30A circuit and wire ready and waiting. Just need a couple of fat wire nuts.

This one only does DC TIG, but that is something I'd like to learn, along with having a good stick machine.......if it works.

Bill

 

[bczygan]

Dumb question...........

Which way do the leads go?

Bill

 

[bczygan]

So here's the report so far.

Hooked up some #12 to a 30A breaker.

Put the machine on 25A.

Turned it on and the power light turned green and the overload light turned orange.

Tried to strike an arc. Got sparks but no arc.

Ideas???


Bill

 

[dr_clyde]

25 amps is too low to maintain an arc. Set the machine for 95 amps and see what happens.

Put your electrode on positive, and any output switches set to panel or on.

 

[Fueler]

That cut cord could be an indication that it is stolen.

 

[bczygan]

That cut cord could be an indication that it is stolen.

I thought of that.

Bill

 

[Rory Bellows]

The cut cord could be from it being direct wired in some factory.

 

[dr_clyde]

Cord that heavy gauge is expensive. Possible that the original owner had a lot longer lead on it and just cut it off to keep it. I would have done that if I had a really long cord and was selling the machine.

 

[bczygan]

25 amps is too low to maintain an arc. Set the machine for 95 amps and see what happens.

Put your electrode on positive, and any output switches set to panel or on.

Ground clamp is on minus. Electrode is on plus.

What about the overload light being on?

What does the sparking indicate?

I don't hear a fan.

I'll try the higher amps.

Bill

 

[bczygan]

The cut cord could be from it being direct wired in some factory.

Cord that heavy gauge is expensive. Possible that the original owner had a lot longer lead on it and just cut it off to keep it. I would have done that if I had a really long cord and was selling the machine.

The stub end of the cord really looks like factory original, with numbers stamped into it. And it was 8AWG, just as they came with, not 6 like some upgrade to for longer runs.

Handle is missing and someone put a Bondo like substance in the holes.

Bill

 

[bczygan]

Tried it at 100A and got enough sparking to auto darken my helmet for a moment, but that's all. Still have the overload light.

Is the 10AWG cord the bottleneck? I doubt it.

Bill

 

[Rory Bellows]

http://weldingweb.com/showthread.php?35414-Invertec-V275-S-Thermal-Shutdown-Problem

 

[Jason280]

Those machines are great when they work, but a money put when they don't. Parts are limited and expensive when available, and they don't sell for much when they are working. Problem is, they can be difficult to troubleshoot even with the schematic, so good luck!

I have its little brother, the V-250s, and it was my first TIG machine. I learned lift-start TIG with mine, even without the foot pedal. The arc on stick with 7018 is wonderful, and they can definitely put out some heat.

Hopefully it will be a simple fix, I'd hate to see you stuck with a $100 paperweight.

 

[dr_clyde]

I have an Invertec V300 pro, approximately the same vintage as yours. It had a problem with the voltage regulator circuit and it would either not have enough volts to melt the wire, or maximum machine voltage. I think there was a solder joint that had come loose. Sounds like that could be your problem. Cost me $150 or so to fix, the welding supply fixed it for me.

I guarantee the cord size isn't your issue. I run mine on smaller cord than that.

You may have to take it to a repair place to get it fixed unless you're handy with repairing electronic circuits.

 

[bczygan]

Those machines are great when they work, but a money put when they don't. Parts are limited and expensive when available, and they don't sell for much when they are working. Problem is, they can be difficult to troubleshoot even with the schematic, so good luck!

I have its little brother, the V-250s, and it was my first TIG machine. I learned lift-start TIG with mine, even without the foot pedal. The arc on stick with 7018 is wonderful, and they can definitely put out some heat.

Hopefully it will be a simple fix, I'd hate to see you stuck with a $100 paperweight.

I found the service manual for it and it has all the procedures and troubleshooting.

Bill

 

[454ragtop]

If a 4 wire cord, I wonder if it needs the neutral to work for some reason, unlike most 230 volt welders that just use 2 hots and a ground.

 

[dr_clyde]

If a 4 wire cord, I wonder if it needs the neutral to work for some reason, unlike most 230 volt welders that just use 2 hots and a ground.

These machines are designed to run 3 phase, or on a de-rated max amperage on single phase.

 

[dr_clyde]

Bill, are you using the black and white wires for your hot legs and omitting the red? Green for ground?

 

[Jason280]

If a 4 wire cord, I wonder if it needs the neutral to work for some reason, unlike most 230 volt welders that just use 2 hots and a ground.

No need for a neutral, mine works off a standard 240v 3-wire plug.

 

[bczygan]

Bill, are you using the black and white wires for your hot legs and omitting the red? Green for ground?

The machine has all 4 wires connected inside.

At the panel I connected red and black to the breaker, white to the neutral bar and green to ground.

Bill

 

[dr_clyde]

The machine has all 4 wires connected inside.

At the panel I connected red and black to the breaker, white to the neutral bar and green to ground.

Bill

You should connect the black and white wires to 120v hot leads to make your 240v, the green to ground and not use the red wire. The red wire is for three phase.

There is no neutral used in 240v single phase.

 

[bczygan]

You should connect the black and white wires to 120v hot leads to make your 240v, the green to ground and not use the red wire. The red wire is for three phase.

There is no neutral used in 240v single phase.

Why does the machine have 4 wires connected inside?

Bill

 

[tdcisco1]

trust what dr clyde advises !

 

[454ragtop]

Why does the machine have 4 wires connected inside?

Bill

The red wire is used if connecting to 3 phase power, not used with single phase. It's in the manual...…….

 

[Wamsutta]

Dumb question...........

Which way do the leads go?

Bill

You run reverse polarity for E7018 stick.

Current flow is going upwards into your electrode, through the machine, and then out the ground cable to ground.

 

[paulsomlo]

You should connect the black and white wires to 120v hot leads to make your 240v, the green to ground and not use the red wire. The red wire is for three phase.

There is no neutral used in 240v single phase.

I looked at the manual online - dr_clyde is correct - the diagram calls out black and white to 240 for single phase, and the red wire is unused (they suggest taping it off). The machine is capable of running with three phase, for which the red wire would be used. Also, there is a jumper which needs to be moved to the 240V position, and a switch as well.

 

[bczygan]

You run reverse polarity for E7018 stick.

Current flow is going upwards into your electrode, through the machine, and then out the ground cable to ground.

I was running 7018 the way your drawing shows on the right.

Bill

 

[bczygan]

Service Manual:

https://elektrotanya.com/lincoln_electric_svm164-a_invertec_v275-s.pdf/download.html

Bill

 

[bczygan]

You should connect the black and white wires to 120v hot leads to make your 240v, the green to ground and not use the red wire. The red wire is for three phase.

There is no neutral used in 240v single phase.

..........................................................................

IT LIVES!!!

I read the manual and did as you said, and I have arc and a bead and penetration!!!!!!!

Bill

 

[bczygan]

Thanks to dr_clyde!

Bill