300ACDC
8
BASIC TROUBLESHOOTING
8 – 2
Table 8-1: TIG Welding Problems
9. Poor weld finish.
Inadequate shielding gas.
Increase gas flow or check gas line for
gas flow problems.
10.Arc flutters during TIG welding.
A. Tungsten electrode is too large
for the welding current.
B. Absence of oxides in the weld
pool.
A. Select the right size electrode. Refer
to Basic TIG Welding guide.
B. Refer Basic TIG Welding Guide for
ways to reduce arc flutter.
11.Welding arc can not be established.
A. Work clamp is not connected to
the work piece or the work/torch
leads are not connected to the
right welding terminals.
B. Torch lead is disconnecte.
C. Gas flow incorrectly set, cylinder
empty or the torch valve is off.
A. Connect the work clamp to the work
piece or connect the work/torch
leads to the right welding terminals.
B. Connect it to the '–' terminal.
C. Select the right flow rate, change
cylinders or turn torch valve on.
12.Arc start is not smooth.
A. Tungsten electrode is too large
for the welding current.
B. The wrong electrode is being
used for the welding job.
C. Gas flow rate is too high.
D. Incorrect shielding gas is being
used.
E. Poor work clamp connection to
work piece.
A. Select the right size electrode. Refer
to Basic TIG Welding Guide.
B. Select the right electrode type.
Refer to Basic TIG Welding Guide.
C. Select the correct rate for the
welding job. Refer to Basic TIG
Welding Guide.
D. Select the right shielding gas.
Refer to Basic TIG Welding Guide.
E. Improve connection to work piece.
Description
Possible Cause
Remedy
Summary of Contents for ARCMASTER 300 AC/DC
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