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2.6.
PROJECTION OF ELECTRODE
Suitable distance of electrode tip from front edge of gas nozzle depends among others on electrode
diameter and current type.
Formation of weld preparation has a considerable effect on suitable electrode projection. E.g. when
you are welding the external angle, you should use a clearly smaller projection than in fillet weld.
Tighten the electrode with reasonable force. Too strong a tightening may damage tightening parts
of electrode.
3.
MAINTENANCE
Due to high temperatures and wear the welding end of TIG torch requires most maintenance, but
also condition of other parts should be checked regularly.
Welding end
Check that...
-
All insulations of welding end are undamaged and at their place.
-
Gas nozzle is undamaged and suitable for work.
-
Flow of shielding gas is free and even.
-
Electrode is undamaged. Use electrode size and tip sharpening angle which is suitable for
welding case. Make sharpening grinding lengthwise of electrode.
-
Fastening parts of electrode are undamaged and electrode is fastened tightly at its place.
Torch cable
Check that...
-
Insulations of handle and torch cable are undamaged.
-
There are no sharp bends in torch cable.
Replace damaged parts immediately by new ones.
Frequent bending of neck body of torch may cause damage of gas
or liquid channels.
Length adjustment of neck body doesn't work on bent neck.
©
COPYRIGHT KEMPPI OY
TTC 130, TTC 130F, TTC 160, TTC 160S, TTC 220, TTC 200W, TTC 250W, – 9
TTC 250WS/0109
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