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2.9 Set-up For LIFT TIG (GTAW) Welding O251
WARNING
Before any welding is to begin, be sure to wear all
appropriate and recommended safety equipment.
NOTE
Operation
Operation
The following set up is known as straight polarity or DC electrode positive. This is
commonly used for DC LIFT TIG welding on most materials such as steel and stainless
steel.
1. Switch the ON/OFF switch (located on the rear panel) to OFF.
2. Connect the work lead cable to the positive output terminal, and the LIFT TIG torch
cable to the negative output terminal.
3. Connect the gas line/hose to the proper shielding gas source.
4. Slowly open the Argon cylinder valve to the fully open position.
2.10
Setup For Cutting (CUT) O251
In order for the unit to function correctly, it must be installed properly. Follow the procedure
given below for correct installation:
power supply
Ar./GAS(TIG/WIG)
TIG torch
MULTIFUNCTION
SERIES
EQUIPMENT
MULTIFUNCTION
SERIES
EQUIPMENT
power supply
Electrode holdder
CAUTION
Loose welding terminal connections can cause
overheating and result in the male plug being fused
in the bayonet terminal.
1. Read the safety rules given in this manual carefully.
2. Check on receiving the unit that there are no defective parts or parts damaged during
transportation.
3. Attach air regulator as show in picture Air Regulator Installation only for O251.
5. Connect the work lead clamp to your work piece.
6. The tungsten must be ground to a blunt point (similar to a pencil) in order to achieve
optimum welding results. See illustration. It is critical to grind the tungsten electrode
in the direction the grinding wheel is turning. Grind at a 30 degree angle and never
to a sharp point.
7. Install the tungsten with approximately 1.6mm to 3.2mm sticking out from the
gas cup, ensuring you have correct sized collet.
8. Tighten the back cap.
9. Turn the switch to the “ON” position. The power L.E.D. light should illuminate.
10. Set the welding process to LIFT TIG.
11. Set the Weld Current Control Knob to the desired amperage.
12. You are now ready to begin LIFT TIG Welding.
