Sequence Of Piercing Operation - Miller Spectrum 375 Owner's Manual

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A complete Parts List is available at www.MillerWelds.com

5-6. Sequence Of Piercing Operation

! The pilot arc starts immediately
when trigger is pressed.
°
45
Connect work clamp to a clean, paint-free Hold torch at approximately 45°
location on workpiece, as close to cutting to the workpiece. Raise trigger
area as possible. lock and press trigger. Pilot arc
starts.
°
90
°
90
°
Rotate torch to upright position
Release trigger. Postflow continues for
Maintain approximately 90 torch
°
approx. 20 seconds after releasing trigger;
approximately 90 to surface. position to surface, and continue
arc can be instantly restarted during postflow
When arc has pierced through cutting.
by raising trigger lock and pressing trigger.
workpiece, start cutting.
Ref. 254 087-A
OM-255 590 Page 22