ESAB Fabricator 252i, Руководство по эксплуатации

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ESAB FABRICATOR 252i
Manual 0-5423 3-25 INTRODUCTION
!
CAUTION
Loose welding terminal connections can cause overheating and result in the male plug being
fused in the terminal.
Remove any packaging material prior to use. DO NOT block the air vents at the front or rear of
the Welding Power Source.
NOTE!
Depending on the type of wire you will be using the MIG Gun polarity may need to be switched. Follow the
wire manufacturers recommendation.
3.20 Set-up for LIFT TIG (GTAW) Welding
!
WARNING
Before any welding is to begin, be sure to wear all appropriate and recommended safety equipment.
NOTE!
The following steps will assume that you have already set up the proper shielding gas as outlined in Sub
Section 3.17.
NOTE!
The following set up is known as Straight Polarity or DC Electrode Negative. 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.
Refer to Figure 3-23.
3. Connect the gas line/hose to the proper shielding gas source. Refer to Figure 3-23.
4. Slowly open the Argon Cylinder Valve to the fully open position.
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.
Art # A-00503_AB
Electrode
2 to 2-1/2 Times
Electrode Diameter
Figure 3-22: Electrode sharpening
7. Install the tungsten with approximately 1/8" to 1/4"(3.2mm to 6.4mm) 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.