15
Continued set up of the MIG250/350/500 SWF Welder for MIG Welding
(8) Align the wire into the groove of the drive roller and close down the top roller making sure the wire is in
the groove of the bottom drive rollers, lock the pressure arm into place. Apply a medium amount of
pressure to the drive roller.
(9) Remove the gas nozzle and contact tip from the torch neck,
(10) Press and hold the inch button to feed the wire through to the torch neck, release the inch button when
the wire exits the torch neck.
(11) Fit the correct sized contact tip and feed the wire through it, screw the contact tip into the tip holder of
the torch head and nip it up TIGhtly.
(12) Fit the gas nozzle to the torch head.
(13) Carefully open the gas cylinder valve and set the flow rate to between 10-15 l/min.
(14) Set the welding parameters using the wire feed and voltage control knobs.
(15) Set the inductance control to get the desired arc characteristic, Hard for a TIGht narrow arc and soft
for
a wider softer arc, setting it half way is a good starting point.
(16) Using the Burn Back control set the amount of wire to ‘burn back’ after you release the torch
trigger. This prevents the wire becoming stuck in the weld pool when finishing the weld.
(14) Set welding parameters using the
voltage and wire feed controls.
(15) Set the inductance control on the front
panel of the power source to get the desired
arc characteristic. Less inductance for a TIGht
hard arc and more for a soft wider arc.
(16 Adjust the burn back control to prevent
the wire sticking in the weld pool. Burn back
control is located on the rear panel of the
power source
(9) Remove the gas nozzle and contact tip
from the front end of the MIG torch.
(12) Fit the gas nozzle to the torch head.
(8) Close down the top roller bracket and clip
the pressure arm into place. Apply a medium
amount of pressure to the drive roller
(10) Press and hold the inch wire button to
feed the wire down the torch cable through
to the torch head.
(11) Fit the correct size contact tip over
the wire and fasten TIGhtly into the tip
holder.
(13) Carefully open the valve of the gas
cylinder, set the flow to 10-15 l/min
