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WARNING: Keep the torch straight. When feeding a new wire through the liner, make sure
the wire is cut cleanly (no burrs or angles) and that at least 1" from the end is straight (no
curves). Failure to follow these instructions could cause damage to the liner.
WARNING: When changing the wire diameter being used, or replacing the wire feed roll,
be sure that the correct groove for the wire diameter selected is inside, closest to the machine.
The wire is driven by the inside groove. Feed rolls are marked on the side identifying the groove
nearest that side.
WARNING: To avoid injury, when loading wire and watching for it to come through the torch
neck do not hold the torch close to your face. Instead, direct it towards the floor. Do not place
fingers near the wire feed rolls when the wire feeder is operating.
Replacing the Wire Liner
ENSURE THE GAS AND ELECTRICAL SUPPLIES ARE DISCONNECTED.
• Disconnect the torch from the machine.
• Place it on a flat surface and carefully remove the brass nut (Fig. 6) (1).
• Pull the liner out of the hose.
• Install the new liner and mount the brass nut (Fig. 6)
(1) again. In case you are replacing a Teflon wire
liner, follow these instructions:
• Install the new liner followed by the collet (3).
• Insert the O ring (4) on the wire liner collet (4)and
replace the brass nut (1).
• Cut the wire liner close to the brass nut. NOTE: The
length of the new wire liner must be the same as the
liner you have just pulled out of the hose.
• Connect the torch to the machine and install the wire
into the feeding system.
How to Choose the Wire Liner for Direct and Euro Connect Torches
There are basically two types of wire liners: Steel and Teflon. Steel wire liners can be coated or non-
coated. Coated wire liners are used for air-cooled torches. Teflon wire liners are recommended for
aluminum welding as they allow smooth feeding of the wire.
FluxCore Wire Welding (FCAW)
• Connect the ground cable to the positive terminal of the
Polarity Change Board inside the spool compartment.
• Connect the working cable to the negative terminal of
Polarity Change Board inside the spool compartment.
MIG Welding (GMAW)
• Connect the ground cable to the negative terminal on the
Polarity Change Board inside the spool compartment.
• Connect the working cable to the positive terminal of the
Polarity Change Board inside the spool compartment.
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