To order parts and supplies: 800.343.9353 >> eastwood.com
35
TIG WELDING TROUBLESHOOTING
PROBLEM
CAUSE
CORRECTION
Arc is Triggered
but Will Not
Start
Incomplete Circuit
Check Ground connection. Make sure that the ground is on a freshly cleaned
surface and close to the welding area. It is suggested to weld towards the ground
connection.
Incorrect Tungsten
Consult Suggested Settings Chart for proper tungsten for the base metal being
welded. In most cases Thoriated will be used for all steels.
No Shielding Gas
Make sure the shielding gas cylinder is turned all the way open and set at the
correct flow rate.
Wrong Polarity
Make sure polarity is set for the correct material. AC should be used for
aluminum while DC should be used for steel.
Arc Wanders
and it is Hard
to Concentrate
Heat in a
Specific Area
Poorly Prepped Tungsten
Follow guidelines for prepping tungsten.
Poor Gas Flow
Adjust the flow rate of the shielding gas (refer to Suggested Settings Chart).
Check for loose fittings where gas could be leaking.
Contaminated Tungsten
Remove tungsten from torch, break off contaminated section, and resharpen.
Incorrect Arc Length
Make sure the Tungsten is held 1/8” to 1/4” off the work piece.
Incomplete Circuit
Check Ground connection. Make sure that the ground is on a freshly cleaned
surface and close to the welding area. It is suggested to weld towards the ground
connection.
Contaminated Base Metal
Clean base metal making sure to remove any oil, debris, coatings, or moisture.
If base metal is aluminum, make sure all of the oxide is removed using either a
dedicated stainless brush or flap wheel.
Incorrect AC Balance
Decrease AC Balance to increase penetration and decrease cleaning effect.
Porosity in
Weld Bead
Poor Gas Flow
Adjust the flow rate of the shielding gas. Check for loose fittings where gas could
be leaking.
Contaminated Filler Metal
Clean filler metal making sure to remove any oil, debris, or moisture.
Contaminated Base Metal
Clean base metal making sure to remove any oil, debris, coatings, or moisture.
Poor Shielding
Make sure to be in an area with no wind and with any fans turned off. Wind or
fans will blow the shielding gas away from the weld causing porosity.
Incorrect Tungsten Exposure
Adjust the tungsten so that 1/8” to 1/4” inch protrudes from the gas cup.
Contamination
in Weld Bead
Contaminated Tungsten
Remove tungsten from torch, break off contaminated section, and resharpen.
Contaminated Filler Metal
Clean filler metal making sure to remove any oil, debris, or moisture.
Contaminated Base Metal
Clean base metal making sure to remove any oil, debris, coatings, or moisture.
If base metal is cold rolled steel, make sure to remove any mill scale.
Melting
Tungsten
Poor Gas Flow
Adjust the flow rate of the shielding gas. Check for loose fittings where gas could
be leaking.
Incorrect AC Balance
Decrease AC Balance to increase penetration and decrease cleaning effect.
Wrong Size Tungsten
Increase tungsten diameter. Refer to chart for proper sizing.
Incorrect Shielding Gas
Only use 100% Argon when TIG Welding.
Содержание MP200i
Страница 1: ...AC DC MP200i WELDER ASSEMBLY AND OPERATING INSTRUCTIONS Item 65375 ...
Страница 31: ...To order parts and supplies 800 343 9353 eastwood com 31 DATA CHART ...
Страница 38: ...38 Eastwood Technical Assistance 800 343 9353 tech eastwood com NOTES ...
Страница 39: ...To order parts and supplies 800 343 9353 eastwood com 39 NOTES ...