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Section 3
Note: A Lift TIG start
FOR DC USE. NOT RECOMMENED FOR AC.
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2
1. Position the edge of the ceramic cup on the metal. Press and hold the torch switch or press the foot pedal.
Wait for the Pre-flow to start. (Make sure pre-flow is set for less than .5 seconds or start will be delayed.)
2. Quickly rotate cup so that the tungsten comes in brief contact (< .5 seconds) with the metal.
3. After contact with the metal, quickly rock the torch back so that the tungsten breaks contact with the metal.
4. An arc should form. As the arc grows, raise the cup up off the metal and slowly rotate the torch into welding position.
5. Leave 1/8" or less gap between the tungsten tip and the metal. Proceed with welding, leaving the torch inclined at a 15° angle.
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<1/8
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.
1. Turn unit on, allow time for power up cycle to complete its start up process.
2. Select either HF or Lift Start TIG with the HF/Lift Start/Stick selector switch. Select DC mode .
3. Plug in Torch and select 4T or 2T mode with the selector OR plug in foot pedal and pedal with selector OR plug in amptrol and select pedal 2T or 4T.
4. If using the torch switch select start/end amps to increase or decrease amps for starting and ending the weld.
5. If using the torch switch, select up/ down slope to increase/decrease the ramp up or ramp down time of the amperage.
6. Adjust maximum amps to the recommended amperage. Generally use 1 amp per .001".
7. Start arc as depicted above.
8. If using 2T, continue to hold the torch switch until you are ready to stop welding. Release the switch. The Arc will then cease.
If using pedal raise 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.
LIFT START TIG OPERATION
should be done with a nearly seamless motion. Use a light touch and a quick motion for best results.
3
HIGH FREQUENCY START TIG OPERATION
FOR AC OR DC USE.
2
General Operation of TIG
30
Basic theory and function
4
4
5
<1/8"
3
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