4-8
O
PERATION
Operator Manual
Cutting
•
Do not fire the pilot arc into the air needlessly—doing so causes a significant reduction of the
nozzle and electrode life.
•
Start cutting from the edge of the workpiece (Fig. 4-6).
•
When cutting, make sure that the sparks are coming out of the bottom of the workpiece. If they
are spraying on top of the workpiece, you are moving the torch too fast, or you do not have
sufficient power to fully penetrate the workpiece.
•
Hold the torch lightly on the metal or just off the metal. Holding the torch firmly to the workpiece
causes the shield or nozzle to stick and makes smooth cutting difficult. The arc transfers to the
workpiece once the torch is within 1/4 inch (6 mm) of the workpiece.
•
Pulling the torch through the cut is easier than pushing it.
•
Hold the torch nozzle at a vertical position and watch the arc as it cuts along the line (Fig. 4-8).
By lightly dragging the shield or nozzle on the workpiece, you can maintain a steady cut. For
straight-line cuts, use any straight edge as a guide.
•
When cutting thin material, reduce the amps until you get the best quality cut.
•
To cut circles, use a template or a radius cutter attachment (Fig. 4-7).
Figure 4-6 Starting a Cut
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