Hi.
Depending on the make and model, it may differ a bit from my inverter welder, but looking at mine:
Positive "Torch" cable-socket is red, and
Earth "Workpiece" cable-socket is black.
Otherwise, the way I tested mine (to find out voltage output):
Use a multimeter (analogue or DMM) set to the highest DC voltage scale, or auto-ranging scale.
Turn welder to minimum power setting (lightest rod setting).
While welder is switched on, gradually reduce the meter's DC range until you get a reading (mine read 48V).
The red test-probe to positive socket gives a positive value
[nn.nn V], or deflects meter pointer right, while reversed polarity gives a negative value [-nn.nn V], or deflects meter pointer left.
As the voltage waveform is actually pulsating DC, the AC scale will also give a reading, obviously without polarity indication.
SOURCE: northern tool brand wire fed gasless welder feeds wire fan work no welding?
You need to have the ground attached to what you'll be welding on. Make sure there isn't anything on the end of your wire. Also, if your voltage is all the way down it won't do anything either. Oh, one more thing, make sure you have a contact tip on the end inside the cone. That will be the copper thing the wire goes through with a really small hole. I know some of this sounds pretty obvious but if I hadn't done these things at least once.....I wouldn't know what to look at either. I also don't know your experience level and want to cover all avenues. Hope you find it!
SOURCE: Got a Campbell Hausfeld gasless 80amp welder. The
Check the tension on the drive wheel, you also might need a liner, they are fairly inexpensive
SOURCE: Melting earth in primary circuit of welders
Improperly wired. Contact machine manufacturer.
Testimonial: "Will check worth a look.***-U-ME-d it was correct "
SOURCE: i have a century powermate 70 mig welder and using
Check that your ground clamp connection to the weldment is secure (tight).
you can weld with the shielding gas, or without.
by not welding right, what exactly do you mean?
SOURCE: On a Century 130 Mig
Check to see if you have the polarity corect for innershielded wire the gun should be negative and the ground should be posative. also check your heat setting and match it to the guide lines on the cover door.
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