Replacing The Wire Liner; How To Choose The Wire Liner; Gas Cylinder And Regulator Connection; Fluxcore Wire Welding, "Fcaw - Helvi FOX 185 FLEX-LINE Manual De Uso

7.1.3 REPLACING THE WIRE LINER

Ensure the gas and electrical supplies are disconnected.
• Connect the torch to the machine and install the wire into the feeding system.

7.1.4 HOW TO CHOOSE THE WIRE LINER

Mainly we can have 2 types of wire liners: Steel wire liners and Teflon wire liners.
• The steel wire liners can be coated or not coated: the coated wire liners are used for air cooled torches;
the wire liners which are not coated are used for water cooled torches.
• The Teflon wire liners are suggested for the welding of Aluminium, as they allow a smooth feeding
of the wire.
Colour
Diameter

7.1.5 GAS CYLINDER AND REGULATOR CONNECTION

WARNING: Cylinders are highly pressurized. Handle with care. Serious accidents
can result from improper handling or misuse of compresses gas cylinders. Do not
drop the cylinder, knock it over, expose it to excessive heat, flames or sparks. Do not
strike it against other cylinders.
The gas cylinder (not supplied) should be located at the rear of the welder, in a well ventilated area and
securely fixed to the work bench or to the wall to insure that it will not fall.For safety, and economy, ensure
that the regulator is fully closed, (turned counter-clockwise)when not welding and when installing or removing
the gas cylinder.
• Turn the regulator adjustment knob counter-clock wise to ensure the valve is fully closed.
• Install the gas regulator on the gas cylinder, tighten the connecting nut firmly to insure against gas
leakage.
• Connect the gas hose to the gas regulator.
• Open the cylinder valve, then set the gas flow to approx. from 5 to 15l/min. on the regulator.

7.1.6 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.

7.1.7 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.
-ENGLISH-
• Disconnect the torch from the machine.
• Place it on a flat surface and carefully remove the brass
nut (1).
• Pull the liner out of the hose.
• Install the new liner and mount the brass nut (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 re-
place the brass nut (1).
• Cut the wire liner close to the brass nut
Figure 6
BLUE RED
Ø 0,6-0,9 Ø 1,0-1,2
Warning: the length of the new wire liner
must be the same of the liner you have just
pulled out of the hose.
YELLOW
Ø 1,2-1,6
Figure 7
25