Kemppi TTC-TIG torches - Manual (Page 13)

EN
4. OperaTiOn disTurbanCes
4.1 The mOsT usual OperaTiOn disTurbanCes are as FOllOWs:
arc is not ignited:
• Cable is loose or there is a bad connection.
• Electrode of torch is highly oxidized (grey). Sharpen again lengthwise. Check that post
gas time is long enough. Check ignition by using pre-gas e.g. by 4-function operation of
torch.
• There are impurities in shielding gas (moisture, air).
• Protective hose or another insulation of torch is broken and ignition spark is “escaping”
from elsewhere than from electrode of torch.
• Torch is wet.
• At low current is used too big or blunt electrode.
gas shielding is bad (weld pool “is boiling”, electrode will be oxidized)
• There are impurities in shielding gas (moisture, air).
• There are impurities in base material (rust, base coat, grease).
• On gas nozzle or housing of tightening bushing has stuck “spatter”.
• Net of gas lens is damaged.
• There is too much draught at welding place.
• Note! With gas lens equipment you get a more balanced gas flow than with normal gas
nozzle equipment.
5. Ordering numbers
4 m 8 m 16 m
TTC 130 627013004 627013008 627013016
TTC 130F 627013104 627016008 627013116
TTC 160 627016004 627066008 627016016
TTC 160S 627016204 627016208 627016216
TTC 220 627022004 627022008 627022016
TTC 200W 627020504 627020508 627020516
TTC 250W 627025504 627025508 627025516
TTC 250WS 627025704 627025708 627025716
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