Firepower TIG 200 AC/DC, Руководство по эксплуатации

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FIREPOWER TIG 200 AC/DC BASIC WELDING GUIDE
4-16 Manual 0-5370 Basic Welding Guide
FAULT CAUSE REMEDY
7 Dirty weld pool A. Electrode contaminated
by contact with work
piece or filler rod mate-
rial.
A. Clean the electrode by grinding off the
contaminates.
B. Work piece surface has
foreign material on it.
B. Clean surface.
C. Gas contaminated with
air.
C. Check gas lines for cuts and loose fitting
or change gas cylinder.
8 Poor weld finish Inadequate shielding
gas.
Increase gas flow or check gas line for
gas flow problems.
9 Arc start is not smooth. A. Tungsten electrode is
too large for the weld-
ing current.
A. Select the right size tungsten electrode.
Refer to Table 4-3 Tungsten Electrode
Selection Chart.
B. The wrong electrode
is being used for the
welding job.
B. Select the right tungsten electrode type.
Refer to Table 4-5 Tungsten Electrode
Selection Chart.
C. Gas flow rate is too
high.
C. Select the right rate for the welding job.
Refer to Table 4-7.
D. Incorrect shielding gas
is being used.
D. Select the right shielding gas.
E. Poor work clamp con-
nection to work piece.
E. Improve connection to work piece.
10 Arc flutters during TIG
welding.
Tungsten electrode is
too large for the weld-
ing current.
Select the right size tungsten electrode.
Refer to Table 4-3 Tungsten Electrode
Selection Chart.