Hypertherm Powermax105 Service Manual - Manual (Page 67)

Hand Cutting
powermax
105 Service Manual 5-3
Hand torch cutting hints
• Drag the torch tip lightly along the workpiece to maintain a steady cut.
• While cutting, make sure that sparks exit from the bottom of the workpiece. The sparks should lag slightly
behind the torch as you cut (15–30° angle from vertical).
• If sparks spray up from the workpiece, move the torch more slowly, or set the output current higher.
• With either the Duramax 75° hand torch or Duramax 15° hand
torch, hold the torch nozzle perpendicular to the workpiece so that
the nozzle is at a 90° angle to the cutting surface. Observe the
cutting arc as the torch cuts.
90°
• If you fire the torch unnecessarily, you will shorten the life of the
nozzle and electrode.
• Pulling, or dragging, the torch along the cut is easier than pushing it.
• For straight-line cuts, use a straight edge as a guide. To cut circles, use a template or a radius cutter
attachment (a circle cutting guide). See the Parts section for part numbers for the Hypertherm plasma cutting
guides for cutting circles and making bevel cuts.