Hobart Welding Products 625 - Manual (Page 25)

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OM-926 Page 21
801 400-B
5-7. Sequence Of Piercing Operation
Maintain approximately 90
°
torch
position to surface, and continue
cutting.
Release trigger. Postflow continues for
approx. 20 seconds after releasing trigger;
arc can be instantly restarted during postflow
by raising trigger lock and pressing trigger.
The pilot arc starts immediately
when trigger is pressed.
Hold torch at an angle to the
workpiece. Raise trigger lock and
press trigger. Pilot arc starts.
Connect work clamp to a clean, paint-free
location on workpiece, as close to cutting
area as possible.
.
Set air pressure to 75 PSI
(517 kPa) for cutting.
90
° 90
°
Rotate torch to upright position
approximately 90
°
to surface.
When arc has pierced through
workpiece, start cutting.