Thermal Arc PRO-WAVE 300 TSW, Руководство по обслуживанию

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PRO-WAVE 300TSW
August 10, 2005
6-3
Description Possible Cause Remedy
6 Electrode melts
when arc is struck. A. Electrode is connected to
the '+' terminal.
A. Connect the electrode to the '-'
terminal.
B.
Wave Balance
is greater
than 50%.
B. Reduced Wave Balance to below
50% or increase the electrode
size.
7. Dirty weld pool. A. Electrode contaminated
through contact with work
piece or filler rod material.
A. Clean the electrode by grinding
off the contaminates.
B. Gas contaminated by air. B. Check gas lines for cuts and
loose fitting or change gas
cylinder.
8. Electrode melts or
oxidizes when an
arc is struck. A. No gas flowing to welding
region.
A. Check the gas lines for kinks or
breaks and gas cylinder
contents.
B. Torch is clogged with dust. B. Clean torch.
C. Gas hose is cut. C. Replace gas hose.
D. Gas passage contains
impurities.
D. Disconnect gas hose from torch
then raise gas pressure and
blow out impurities.
E. Gas regulator turned off. E. Turn on.
F. Torch valve is turned off. F. Turn on.
G. The electrode is too small
for the welding current.
G. Increase electrode diameter or
reduce the welding current.
H.
Wave Balance
is set above
50%.
H. Reduced Wave Balance to below
50% or increase the electrode
size.
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.
A. Select the right size electrode.
Refer to Basic TIG Welding Guide
for ways to reduce arc flutter.
B. Absence of oxides in the
weld pool.
B. Refer to 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
terminals.
A. Connect the work clamp to the
work piece or connect the
work/torch leads to the right
welding terminals.
B. Torch lead is disconnected. B. Connect it to the '-' terminal.