Cem Dual Mig 120 Manual Instant

Usually consisting of two toggle switches (Min/Max and 1/2) providing four distinct voltage settings to match material thickness.

Check for a worn or clogged contact tip. Replace it if it looks ovalized or contains spatter.

Unplug the welder from the wall every six months, remove the outer metal shroud, and use compressed air to blow out accumulation from the transformer coils and cooling fan blades. cem dual mig 120 manual

Torch is POSITIVE (+), Ground Clamp is NEGATIVE (-).

Argon/CO2 mix (for steel) or Pure CO2 (budget option). Usually consisting of two toggle switches (Min/Max and

Ensure the welder is unplugged from the wall.

Take a clear photo of the wiring schematic usually glued to the inside of the side panel. If yours is missing, that’s the first thing to ask for on hobbyist forums! Unplug the welder from the wall every six

| Setting | Wire Type | Polarity | Shielding | |---------|-----------|----------|-----------| | Gas (MIG) | Solid wire (0.6/0.8 mm) | DCEN (torch negative) | CO₂ or Ar/CO₂ mix | | Gasless | Flux-cored (0.8/0.9 mm) | DCEP (torch positive) | Not required (core provides flux) |

Periodically remove the drive roller and scrub the grooves with a wire brush to remove metal shavings and dust.

Snip the end of the wire cleanly with wire cutters. Straighten out the first 2-3 inches. Carefully thread it through the rear guide tube, over the roller groove, and into the brass torch liner guide.

The front panel of the Dual Mig 120 is minimalist, relying on manual switches rather than digital readouts. Understanding these tactile controls is key to dialing in the perfect weld. 1. Power Switch (On/Off)