Dual Mig 120 Manual — Cem

Increase voltage switch setting or turn down the wire speed. If using gasless wire, swap polarity to Torch Negative (-). Thermal overload protection has activated.

When you open the box, the manual instructs you to verify the contents:

If you can't find a CEM manual, look for SIP , Cosmogas , or older Snap-On models from the late 80s and 90s. They often shared internal components and wiring diagrams. 2. Setting Up the Polarity

Leave the machine powered ON so the internal fan can run. Wait 10-15 minutes for the light to clear. cem dual mig 120 manual

Generally around 10% at 105A–120A, increasing significantly at lower settings. Wire Compatibility: Handles 0.6mm to 0.8mm wire.

Even the best machines have issues. The official lists these exact fixes:

Lay the MIG torch cable out completely straight on the floor to minimize resistance inside the liner. Increase voltage switch setting or turn down the wire speed

Set your Voltage switch according to material thickness (e.g., Min-1 for 1mm sheet metal). Set your Wire Speed to a mid-point setting (around 4 or 5).

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What and metal type are you planning to weld? When you open the box, the manual instructs

Connect your shielding gas (typically a 75/25 Argon/CO2 mix) to the rear inlet. Set your flow meter between 10 to 15 CFH (cubic feet per hour) for standard indoor conditions. 3. Setting Your Parameters The front panel typically features two main knobs: MIG Welder Settings: MIG Welding Basics for Beginners

Features a two-roller wire drive system. It is critical to match the drive roller groove to the wire type (serrated for flux-cored/soft wire and smooth for solid/hard wire). Adjustments:

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

This setup is ideal for outdoor welding where wind would blow away shielding gas, or for quick, portable repairs.