ESAB ET 186i AC/DC
BASIC WELDING GUIDE 4-14 Manual 0-5425
FAULT
CAUSE
REMEDY
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
welding 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
connection to work
piece.
E Improve connection to work piece.
10 Arc flutters during TIG
welding.
Tungsten electrode
is too large for the
welding current.
Select the right size tungsten electrode.
Refer to Table 4-3 Tungsten Electrode
Selection Chart.
