• Insufficient inductance.
• No preheating of the CO2 protection gas
6 MAINTAINING THE SYSTEM
• Shielding gas nozzle
This nozzle must be periodically cleaned to remove weld
spatter. Replace if distorted or squashed.
• Contact tip.
Only a good contact between this contact tip and the wire
can ensure a stable arc and optimum current output; you
must therefore observe the following precautions:
A) The contact tip hole must be kept free of grime and oxi-
dation (rust).
B) Weld spatter sticks more easily after long welding ses-
sions, blocking the wire flow.
The tip must therefore be cleaned more often, and replaced
if necessary.
C) The contact tip must always be firmly screwed onto the
torch body. The thermal cycles to which the torch is subjec-
ted can cause it to loosen, thus heating the torch body and
tip and causing the wire to advance unevenly.
• Wire liner.
This is an important part that must be checked often, becau-
se the wire may deposit copper dust or tiny shavings. Clean
it periodically along with the gas lines, using dry compressed
air.
The liners are subjected to constant wear and tear, and the-
refore must be replaced after a certain amount of time.
• Gearmotor group.
Periodically clean the set of feeder rollers, to remove any rust
or metal residue left by the coils. You must periodically check
the entire wire feeder group: hasp, wire guide rollers, liner
and contact tip.
7 ACCESSORIES
Art. 1441
Wire feeder.
Art. 1561
Pull 2000 torch with UP/DOWN command on
grip.
Art. 1562
Spool-gun torch with potentiometer on grip.
Art. 1196.00 6-meter connection for 1562.
Art. 1196.20 12-meter connection for 1562.
11