Cem Dual Mig 120 - Manual Best

If the wire won't feed even with high tension, your torch liner might be kinked or clogged with dust. 5. Troubleshooting Common Issues

If you are looking at the face of the machine without a manual, here is what the controls generally do: These are your voltage settings. Min + 1: Lowest power (thin sheet metal). Max + 2: Highest power (thicker steel up to 3-4mm).

If the machine gets too hot, the thermal cut-out will trip. The light will turn on, and the welder will stop until it cools down. 3. Setup and Wire Loading cem dual mig 120 manual

These are consumables. If the wire is "stuttering," replace the copper tip at the end of the torch.

Flip the tensioner arm, thread the wire through the guide liner, over the roller, and into the torch lead. If the wire won't feed even with high

This potentiometer controls how fast the motor pushes the wire. This must be tuned by ear—you’re looking for a consistent "sizzling bacon" sound.

Generally around 10% at 105A–120A, increasing significantly at lower settings. Wire Compatibility: Handles 0.6mm to 0.8mm wire. Min + 1: Lowest power (thin sheet metal)

While the original printed manuals for CEM machines are becoming harder to find, the internal circuitry is very similar to many SIP or Clarke welders of the same era.