10 – TTC 130, TTC 130F, TTC 160, TTC 160S, TTC 220, TTC 200W,
TTC 250W, TTC 250WS/0109
©
COPYRIGHT
KEMPPI
OY
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 “esca-
ping” 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
TTC 130
TTC 130F
TTC 160
TTC 160S
4m
627013004
627013104
627016004
627016204
8m
627013008
627013108
627016008
627016208
16m
627013016
627013116
627016016
627016216
TTC 220
TTC 200W
TTC 250W
TTC 250WS
4m
627022004
627020504
627025504
627025704
8m
627022008
627020508
627025508
627025708
16m
627022016
627020516
627025516
627025716
