Some Points about Wire Feed Welders:
• Make in no doubt the machine leads are hooked up with the electrode positive.
• Put flow meter gas flow to about 20-25 cfh.
• Use the correct size drive rollers to match the wire you are using.
• Make sure the contact tip is flush with the nozzle.
• Put Voltage and wire feed speed using the diagram that comes by the engine you are using.
• Hold the torch close to the work so that there is merely about 1/2" of wire sticking out from the contact tip to the weld.
• Don’t get carried away with torch viewpoint...5-10 degrees works in either way for many applications.
• Practice on scrap before you weld the real deal.
• If the weld you are manufacture is critical, do some destructive tests with a hammer on a mock up weld first.
• Get an auto darkening welding helmet so you know accurately where to light up.