3. Cutting with compressed air
Put switch"12" (MMA/TIG/CUT switch) onto the position "CUT"
(1) Connect the machine correctly according to the diagram. Switch on the air compressor to its rated
pressure.
(2) Turn the power switch of the cutting machine on. The power indicator light will illuminate and the
cooling fan will begin working.
(3) Put the function switch in the position of "air testing". Then the air will expel from the cutting
torch. Turning the function switch in the position of "cutting" and pressing the torch switch will also
expel air from the torch.
(4) Select a suitable cutting current and air pressure according to the thickness and material of the
work piece and the a p p r o p r i a t e cutting speed. Select the standard for the spray nozzle of the
torch. The spray nozzle will not change color while cutting.
(5) Cutting: Hold the cutting torch at the edge of the work piece and position the nozzle towards the
work piece at 15 degrees. Let the nozzle touch the work piece, and press the torch switch. The air will
now be expelled and a high frequency arc will be generated. The high frequency can be cut off
automatically after the arc generation. After the torch has pierced through the work piece, straighten
the torch vertically and follow your desired cut line. Once you have finished cutting, release the
trigger to extinguish the arc.
