24
SeCTION 3
OPeRATION
WHEN THE ARC BREAKS
THROUGH THE WORK, BRING THE
TORCH TO AN UPRIGHT POSI-
TION AND PROCEED TO CUT.
TO START A PIERCE, TILT THE TORCH
TO PREVENT MOLTEN MATERIAL FROM
COMING BACK AGAINST AND DAMAG-
ING THE TORCH.
1
2
CAUTION:
Locate the console at least 10-ft. from the cut-
ting work area. Chips and hot slag from the
cutting operation can damage the console.
After placing the primary (wall) switch to the ON position and
making control and air pressure adjustments as described
above, proceed as follows:
1. Touch the tip of the torch to the workpiece holding the
torch at about 15- 30
°
angle to avoid damaging the tip.
2. Depress the torch switch. (Air and high frequency should
energize.)
3. Two seconds after depressing torch switch, the plasma
arc will start cutting.
4. After starting the cut, bring the torch to an upright
position and proceed to cut by dragging the torch
along the workpiece. It may be necessary to cut with
a tip-to-work (standoff) distance of up to 1/16" due to
various material surface conditions.
Figure 3-4 Piercing Technique using the PT-31xl
5. When ending a cut, the torch switch should be released
to minimize double-arcing which can damage the tip. This
is to prevent high frequency from reigniting after cutting
arc extinguishes.
6. In the postflow mode, the arc can be restarted immediately
by depressing the torch switch. The two second preflow
will automatically cancel.
Summary of Contents for 380
Page 4: ... TABLE OF CONTENTS ...
Page 14: ...14 SECTION 1 DESCRIPTION ...
Page 26: ...26 SECTION 3 OPERATION ...
Page 30: ...30 SECTION 4 MAINTENANCE WORK LEAD CONNECTION TORCH CONNECTION ...
Page 41: ...41 Notes ...
Page 42: ...Notes ...
Page 43: ...Revision History Original release 06 2006 03 2007 Revised Title Page layout text ...
