Square wave tig 175 while stick welding it will go to full amps while welding. it does this in any setting. i can hit the side of welder and it will go back to preset setting

is the tig welder 120 or 240. If 120 no you can't

Some welders have a resistor that is obvious and accessible but to give an error code it is likely something else inside. You'll have to look at the circuit board for a component that is burned. If you are lucky you will find a fuse.

DC current, electrode negative (DC Straight, DC-), High frequency for start only (really don't have to use high freq at all for steel but it helps establish the arc without scratching), 1 amp per thousandth of material thickness is a good setting to start, adjust from there for the job. 1 amp/thousandth also applies to aluminum- it has a lower melting point than steel but conducts heat much better so power to weld is very nearly the same.

Use a sharp tungsten, don't ball it at all (as you would for AC work).

lp

Have you got the TIG torch and earth lead pluged in the wrong way around ? Should the torch be negative and earth positive ?

buy a Cobra lead and torch head already equiped would be you best bet.

Try this one if not it go to the next link for manuals.

http://www.thermadyne.com/IM_Uploads/DocLib_2143_300X4838.pdf


http://www.thermadyne.com/thermalarc/component/option,com_doclib/task,/id,/Itemid,237/categoryID,4/

Square Wave refers to the shape of the voltage cycle in a welding arc. In an AC wave, a typical sinusoidal or sine wave, changes the voltage from positive to negative gradually, although many times a second. This means the voltage will not be consistent and at times will actually go through zero. Square Wave, on the other hand, changes the voltage from positive to negative almost instantly, making for a much smoother and more stable welding arc. This is particularly important when welding aluminum and when considering aspects like cleaning and penetrating action.

For certain type of work TIG is required, like welding chrome moly for some racing organizations. Intricate work, like gunsmithing is also well suited to TIG. TIG is used by many auto restorers who prefer a more precise, perfect finish that requires little to no finish work. TIG is most similar to gas welding in technique, so if you've done oxy-fuel welding, TIG should be a natural transition. MIG is required by law and by insurance companies in many localities for structural repair of automotive frames. MIG is also much easier to learn and faster to weld. For doing other types of welding, like sheet metal, it can be a matter of personal preference. For an auto body repair shop or a novice welder, a MIG is a good, practical all-around welder.

Choose the electrode to use for the project you are starting as well as the variety of alloys you'll use such as the 6061 Aluminum alloy electrode. Grind the electrode to a point. Try to create a tip and sharpen it to help it become more rounded as you weld. Place the electrode into an electrode holder with the tip about 1/4-inch away from the sheath. Choose the settings on your tig welder. The three main ones are AC, DCEP and DCEN. Choose AC for aluminum. Slide the "cleaning/penetrating" slider more to the penetrating side. Set the "air on" to five seconds and the "max amps" to 250. Turn on the gas. For aluminum, use pure argon. For steel, an argon and carbon dioxide mix. Scrub your welding table or flat piece of sheet metal with a wire brush to make it clean and flat. Gear up in full welding safety gear including hood, goggles, apron and gloves. Hold the electrode in your dominant hand and start your welding project. Check your settings every so often to make sure they haven't changed and adjust as needed.

Go to your local welding supply store. A TIG welder is a specialized welder that cannot be found at a building supply store. Stores like Maine Oxy-Acetylene Supply or Grainger Industrial Supply will carry them. Look in the classifieds of publications like Uncle Henry's. There you might find a TIG welder that someone is selling—and it may be at a good price. Be sure to ask the owner questions and take a look at the TIG welder before buying it. Explore eBay. Yes, even eBay has TIG welders. You'll need to ask the buyer questions about the welder's history and more. Perhaps, if the seller is near enough, you might be able to pick up the TIG welder yourself and save on shipping. Visit online retailers. Retailers like Welders Direct or Welding Mart carry TIG welders and would be able to answer any questions you might have (see Resources below). Consider the manufacturer of the TIG welders themselves. Lincoln, Miller, Hobart and others have their own websites. Call the companies directly and ask a lot of questions. These vendors are the best product source for welders (see Resources below).