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How to Set Up a Longevity TigWeld 250 AC/DC

The Voice: Hey, Kevin. What are you doing?

Kevin Caron: I'm setting up my new Longevity TIGweld here in the studio. This is a 250 AC/DC. The name of this welder is long, but it's a good machine. Come here, let me show you.

When you break this little guy out of the box, of course the first thing you have to do is put a power plug on it. It's just a standard three-wire 220 single-phase, so you've got black, white, and green.

Hook them up. If you know how to do it, that's great. If not, have an electrician come in. Don't be messing with it if you don't know what you're doing.

Here are some of the other things that come in the box with the welder: your ground cable; your electrode holder for stick welding (it also does that); some extra collets; the short knobs to go on the back when you're using short tungstens as opposed to the long ones, and a few extra cups.

Here's the flow meter for the argon bottle, along with a hose. I made one change in this: normally, you would either push this onto the back of the machine (and I'll show you that), but it also takes a quick disconnect fitting. So, I added a quick disconnect and put a 90-degree elbow on it so it can clear the bottle when it's sitting on the cart. I'll show you all that in a minute.

Here's your air-cooled TIG torch, and also a foot pedal.

The TIG torch has a finger control on it, so you can either run it right from here if you're welding under the car or standing on your head like I do half the time. But it also has the foot pedal so you can run it while sitting at a bench.

The important thing to remember with the foot pedal: there's an adjustment knob on the back of it for your amperage. Not at the machine, but over here. Very important to remember.

So, let's go to the machine and hook the cables up.

First up is your TIG torch connection, it goes on the negative side of the machine, and you line up the little boss, push it in, twist it, and you're good to go.

Your gas connection for the argon goes right in the quick disconnect on the front of the machine, then snap it in.

The Voice: Is this all marked, Kevin?

Kevin Caron: Yes, it says "gas outlet" underneath it. It says "negative" underneath the connector for the TIG torch. This is the controller and this is the positive side.

Next up would be the control cable for the TIG torch. Line up the little boss and screw them in. This is also where you would hook up the foot pedal, if you were going to use it. You would just unhook the TIG torch, hook up the foot pedal, you're ready to go.

As for the ground cable, line up the boss on the electrode, stick it in and give it a twist.

On the back of the machine you've got your flow meter into your argon bottle.
This is that quick disconnect I put on to hook up to the back of the machine. Let me show you. As you can see, this is the little connector on the back that the gas goes into. If you're going to leave it hooked up all the time, you can slip the tube right over this connector on the back of the machine and just put the hose clamp that comes with it right on here. I added this little quick-disconnect to it. It's that easy; that quick.

Now, if I want to use this flow meter on a different machine, or if I want to move the TIG to a different location, it's easy enough to just pop this off, move it to a different spot and set it right back up again.

The on-off switch for turning on the machine is on the back side, on the left.

All your controls are right here in the front. I think we'll save these for the next how-to video on the Longevity welding equipment. Then we'll get to see it work all at the same time.

I hope that helps you get everything set up. Come back and see us for the next one.


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