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board, and tighten it in clockwise direction.
7. Connect the two-cored air plug of the foot switch respectively to the
two-cored and three-cored sockets on the panel board.
After finishing all the work above, you can start welding.
OPERATION
1. Turn on the power switch, the fan begins to work.
2. Turn on the gas switch; adjust the gas to rated standard. (See parameter)
3. According to the oxidization degree of the work piece, adjust the switch for
clean width to change the positive and negative current rate.
4. Turn on the switch on the welding torch, and the electromagnetic valve works;
you will hear the sound of HF electricity-releasing. Meanwhile, there is gas
coming out of the torch mouth. Attention: If it’s the first time to weld, please
hold the switch for seconds before welding; don’t begin welding until all the
air in the gas road is made out. After you finish welding, there will be still
being gas out for seconds. This is designed for protecting the welding point,
so please stay in the welding place for seconds before removing the torch.
5. According to practical use, choose the foot switch. If the foot switch is in use,
please turn the current to the minimum, and the current volume is under the
control of the foot switch.
6. According to practical use, adjust the time of “pre-flow”, “post-flow” and
“slope-down”.
7. Keep the distance between the tungsten and work piece between 2mm to
4mm, push the torch switch, then HF electricity-releasing will come out
between the welding tungsten and work piece; after the arc-leading, the
splash may disappear at once, then you can start work.