Buffalo Tools HIT140, Инструкции по сборке и эксплуатации

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4. Distance from the work piece
If the nozzle is held off the work piece, the distance between the nozzle and the work piece should be kept
constant and should not exceed 1/4 inch or the arc may begin sputtering, signaling a loss in welding performance.
5. Tuning in the wire speed
This is one of the most important parts of MIG welder operation and must be done before starting each welding
job or whenever any of the following variables are changed: wire diameter, or wire type.
EXPOSURE TO A WELDING ARC IS EXTREMELY HARMFUL TO THE EYES AND SKIN!
Prolonged exposure to the welding arc can cause blindness and burns. Never strike an arc or begin welding until
you are adequately protected. Wear flameproof welding gloves, a heavy long sleeved shirt, trousers with out cuffs,
high topped shoes, and an ANSI approved welding helmet.
5.1. Connect the Ground Clamp to a scrap piece of the same type of material which you will be welding. It should
be equal to or greater than the thickness of the actual work piece, and free of oil, paint, rust, etc.
5.2. Hold the torch in one hand, allowing the nozzle to rest on the edge of the work piece farthest away from you,
and at an angle similar to that which will be used when welding. (See HOLDING THE TORCH if you are uncertain
of the angle at which you will be welding).
5.3. With your free hand, turn the Wire Speed Dial to maximum and continue to hold onto the knob.
5.4. Lower your welding helmet and pull the trigger on the torch to start an arc, then begin to drag the torch toward
you while simultaneously turning the Wire Speed Dial counter-clockwise.
5.5. LISTEN! As you decrease the wire speed, the sound that the arc makes will change from a sputtering to a
high-pitched buzzing sound and then will begin sputtering again if you decrease the wire speed too much. The
point on the wire speed adjustment where the high-pitched buzzing sound is achieved is the correct setting. You
can use the wire speed control to slightly increase or decrease the heat and penetration for a given heat setting by
selecting higher or lower wire speed settings. Repeat this tune-in procedure if you select a new heat setting, a
different diameter wire, or a different type of welding wire.
6. Welding Techniques
EXPOSURE TO A WELDING ARC IS EXTREMELY HARMFUL TO THE EYES AND SKIN ! Prolonged exposure
to the welding arc can cause blindness and burns. Never strike an arc or begin welding until you are adequately
protected. Wear flameproof welding gloves, a heavy long sleeved shirt, trousers with out cuffs, high topped shoes