Tweco 161 S UK - Manual (Page 23)

INSTALLATION THERMAL ARC 161 S
Manual 0-5183 3-7 3-7 Installation
9. Set the “Process Selection Switch” to LIFT TIG
10. Set the weld current control knob to the desired
amperage.
11. The tungsten must be ground to a blunt point in order
to achieve optimum welding results. It is critical
to grind the tungsten electrode in the direction the
grinding wheel is turning.
12. Install the tungsten with approximately 3.2mm
(1/8”) to 6.4mm (¼”) sticking out from the gas cup,
ensuring you have correct sized collet.
13. Tighten the back cap then open the valve on the
torch.
14. You are now ready to begin TIG Welding.