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7. Switch ON using the switch mounted on the rear panel. The green light on

the front panel will glow.

8. If the machine stops at any time and the amber light comes ON, the

thermal overload has intervened. Wait until the welder has cooled

sufficiently (the amber light goes out) before restarting work. Open the gas

valve on the torch handle,

• This will allow gas to flow from the torch nozzle.

9. Cover your face with the head shield, bring the torch to within 3-4mm of

the work, and at an angle of 45°, so that the ceramic nozzle gently touches

the work surface.

10. Scratch the tip of the electrode against the piece to be welded, as soon as

the welding arc starts, remove the electrode to a distance of 3-4 mm, and

continue the weld. (See notes below).

• This method is referred to as ‘Scratch Arc’.

11. To stop welding, simply remove the torch from the workpiece.

12. Turn OFF the gas as soon as you finish welding.

Note:

• To avoid a visible strike mark on the surface of the workpiece it is

advisable to strike the arc in the joint where the mark will be

concealed by the weld.

• Thin sheet and stainless steel may be welded with or without filler,

similar to gas welding.

• The filler is fed in at the edge of the pool. The rod must not touch the

tip of the electrode or enter the arc. The end of the rod must always

be shielded by the argon atmosphere to prevent as far as possible

the formation of oxides of its surface. When welding stainless steel

and copper, it is often possible to feed in the filler continuously at the

edge of the pool.