From gas to gasless how to - Welding Tools

Is free gas between the outlet of the regulator and the welder itself?

I hate gasless MIG welding. Bought the flux wire and could not get it to weld. Kept running the current up to stop cold welds and tripped the breaker. It welds very good with gas though, so it's not the welder.

change the position of the earth strap at the front of the unit
there should be two terminals one marked - and one +
normal gas welding is -, gas less welding is +

Most mig welders have reversible feed spools. There is a good chance you have the spool in the .030 wire side. Remove the spool retaining clip and flip the spool to .023 wire for example. I don't know what size wire you are using. Also there is an adjustment for the drive spool. Tighten the tensioner spring thumb screw to increase the feed tension.

The Rossi 220bz mig welder comes set up to use gas welding, that is with the Mig electrode connected to the positive terminal, inside the machine.
To use gasless mig wleding, the mig wire must be disconnected from the positive terminal inside the machine and reconnected to the Negative terminal - inside the machine. Open both the side coveres of the welder using a phillips screwdriver. Use a 13mm spanner to undo the hex nut holding the thick copper Mig lead to the terminal named positive, then lead it through the machine to the terminal on the oppisite side of the machine, labelled negative and screw it in place there with a 13mm hex screw. Be carefull not to bump any of the many electric parts inside the machine.
If you run the Mig welder in gasless mode with positive earth and positive elecrode it will blow the household electric fuse.
If you run the Mig welder in gasless mode with negative earth and positive electrode it will work, but the end of the Mig gun tip will get very very hot and start smoking abnormally from excessive heat.
But if you take the side covers off and rewire it (takes about 10 minutes) to negative Mig Electrode, the Mig gun tip remains cool and does not overheat. You will have to cut just one white cable tie, to get an extra inch or so of free Mig cable, so the thick copper Mig lead will reach accross to the terminal on the other side of the machine named negative. Stick the earth lead at the front in the positive terminal.
I did this on my Rossi 220bz mig welder.
http://www.weldequip.com/gasless-mig-wire.htm

The other difference between gas/gasless is the ability to reverse the gun polarity which you can't do with a gasless only welder. You can get it to work but not safely and reliability could be an issue also.

Most gas welders double as gasless welders. Just buy the flux core wire and use it without the gas on.

Hi mate. Not sure on the power settings but the earth clamp is negative for gasless and possitive when useing gas

for welding cars or similar thickness steel use it on number1 setting speed 6-7 and practise max and min should be used when you want a bit more power A gose onto number 2 and then 3 these are amp settings and are for thickness of steel to be weled your welder can weld up to 8mm of plate steel on setting 3 max i use 0.9mm gasless flux cored wire great for working out doors the wind tends to blow gas away on standard wire yours is easly converted to gasless as so was mine

gas regulator needs checking or replacing!
Or you can use GASLESS WIRE!