14
OPERATION - TIG
Before starting any welding activity ensure that you have suitable eye protection and
protective clothing. Also take the necessary steps to protect any persons within the welding
area.
TIG welding
Insert the cable plug with the work clamp into the
“+” socket on the front panel of the welding
machine and tighten clockwise.
Insert the cables plug of the TIG torch into the “-”
socket on the front panel of the machine and
tighten clockwise.
Connect the TIG torch gas hose to the flowmeter
that is connected to the regulator which is located
on the shield gas cylinder.
Before starting any welding activity ensure that you
have suitable eye protection and protective clothing.
Also take the necessary steps to protect any persons within the area.
After connecting the welding leads as detailed you will need to switch the power switch on the back panel
to “ON”. Select Lift TIG by switching to TIG on the MMA/TIG welding mode switch. (Note, there is voltage
output at both output terminals).
Set the amperage on the machine suitable for the electrode being used. (For a guide to tungsten sizes,
please refer to the table below). Ensure you have adequate welding current according to the thickness
of the work and weld prep being carried out and filler wire being used.
Lift TIG description
Open the gas valve of the cylinder and adjust the gas regulator to obtain the desired flow rate.
Open the gas torch valve located close to the torch head and the gas will flow.
The Jasic ARC range allows the tungsten to be in direct contact with the work piece with minimal current
so as not to leave tungsten deposits. Once contact has been made the tungsten can then be lifted away
2-4mm from the work piece and the welding arc is then established.
Once welding is complete pull the torch away
to disengage the welding arc but ensure you
leave the torch in place to shield the weld with
gas for a few seconds and then turn off the gas
at the valve on the torch head.
Tungsten Size
DC – Electrode Negative
1.0mm
15 – 80A
1.6mm
70 – 150A
2.4mm
150 – 250A
3.2mm
250A – 400A
