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| VIPER 200P TIG Welder Manual
7: Arc difficult to start or will not start DC welding
Possible Reason
Suggested Remedy
Incorrect machine set up
Check machine set up is correct
No gas, incorrect gas flow
Check the gas is connected and cylinder valve open, check hoses, gas valve and torch are not restricted.
Set the gas flow between 10 - 15 l/min flow rate
Tungsten is contaminated
Remove 10mm of contaminated tungsten and re grind the tungsten
Incorrect tungsten size and or tung
-
sten being used
Check and change the size and or the tungsten if required
Loose connection
Check all connectors and tighten
Earth clamp not connected to work
Connect the earth clamp directly to the work piece wherever possible
TIG WELDING TROUBLE SHOOTING
Recommended Accessories
XCEL-ARC PROBAN
WELDING JACKET
XA-BPJ
TIG TORCH HOLDER
MI-TIGHOLD
XCEL-ARC TIG GLOVES
XA-10-1003-L
TOXIC WELDING HELMET
TOXIC
6: Arc wanders during DC welding
Possible Reason
Suggested Remedy
Poor gas flow
Check and set the gas flow between 10 - 15 l/min flow rate
Incorrect arc length
Lower torch so that the tungsten is off of the work piece 2 - 5mm
Tungsten incorrect or in poor con-
dition
Check that correct type of tungsten is being used. Remove 10mm from the weld end of the tungsten and re
sharpen the tungsten
Poorly prepared tungsten
Grind marks should run lengthwise with tungsten, not circular. Use proper grinding method and wheel.
Contaminated base metal
Remove contaminating materials like paint, grease, oil, and dirt, including mill scale from base metal.
Contaminated filler wire
Remove all grease, oil, or moisture from filler metal.
Incorrect filler wire
Check the filler wire and change if necessary
