29
General TIG Arc Starting Steps
1. Turn unit on, allow time for power up cycle to complete its start up process.
2. Select TIG with the TIG/Cut/Stick selector switch. Select AC or DC mode with the AC/DC switch.
3. Plug in Torch and select 4T or 2T mode with the selector switch
OR
plug in foot pedal and select 2T.
4. If using the torch switch select start/end amps amperage by rotating the knob to increase or decrease amps for starting and ending the weld.
5. If using the torch switch, select up/ down slope time by rotating the knob to increase/decrease the ramp up or ramp down time of the amperage.
6. Adjust amps with amp control knob.
7. Start arc as depicted above.
8. If you are using 2T, continue to hold the torch switch until you are ready to stop welding. Release the switch. The arc will then cease.
If you are using the foot pedal raise your foot fully off the pedal and arc will stop automatically.
9. If using 4T, release the switch, after arc initiates. Continue to weld without holding the switch down. To stop, press and release the switch again.
HIGH FREQUENCY START TIG OPERATION
<1/8
<1/8”
FOR AC OR DC USE.
1
2
3
1. Position the point of the sharpened tungsten about
1/8”
or less above the metal.
2. Press the torch trigger or press the foot pedal to initiate the arc. The HF arc will be initiated. It may appear briefly as a blue spark.
3. An arc should form, almost immediately after the pre-flow cycle is completed. HF arc initiation will be delayed by the amount of pre-flow
time used. If arc does not start after the pre-flow interval, and the HF is creating a spark, then check the work clamp contact with the work
piece. Move the tungsten closer to the work. Repeat steps 1 and 2.
4. Leave
1/8”
or less gap between the tungsten tip and the metal and proceed with welding, leaving the torch inclined at a 15° angle.
4
Basic theory and function
Section 3
