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Shielding Gas Guide
METAL
GAS
NOTE
Mild Steel
CO2
Argon + CO2
Argon + CO2 + Oxygen
Argon controls spatter
Oxygen improves arc stability
Aluminum
Argon
Argon + Helium
Arc stability, good fusion and minimum splatter.
Higher heat input suitable for heavy sections.
Minimum porosity.
Stainless Steel
Argon + CO2 + Oxygen
Argon + Oxygen
Arc stability.
Minimum splatter.
Copper, Nickel & Alloys Argon
Argon + Helium
Suitable for light gauges because of low
flowability of the weld pool.
Higher heat input suitable for heavy sections.
Wire Loading
ENSURE GAS AND ELECTRICAL SUPPLIES ARE DISCONNECTED.
Before proceeding,
remove the nozzle and the contact tip from the torch.
• Open the side panel.
• Loosen the nut of the spool holder (brake drum) and
remove the spring and the external ring.
• Remove the plastic protection from the spool and
place the wire spool on the spool holder.
• Mount the external ring the spring and the
plastic lock nut again. These parts form the braking
system of the wire spool speed.
NOTE:
Do not
tighten the nut too much, excessive pressure strains
the wire feeding motor, while too little pressure does
not allow the immediate stop of the wire spool at the
end of the welding.
• Loosen and lower the plastic knob (Fig.5) (A). Open
the pressure arm (B) of the feeder.
• Disconnect the wire from the edge of the wire spool
being careful to keep tension on the end of the
wire. Cut off a short section of the end of the wire to
insure a straight end. Insert the the straight end into
the wire inlet guide (C) past the wire feed roll and
into the wire liner. Lower pressure arm (B) and lift
pressure adjustment knob (A) into place. Connect
the input power cord and turn on the welder. Press the torch trigger and observe the wire
feeding into the torch liner. Adjust the pressure on the wire with knob (A) to insure smooth
feeding without slippage. Do not over tighten the pressure adjustment as it may damage
the motor. Close the welder side panel. Remove the nozzle and contact tip from the welding
torch. Straighten the torch cable to remove any coils or kinks. Squeeze and hold the torch
trigger until the wire appears at the end of the torch neck. Turn off the welder and install the
contact tip and nozzle.