Slide the correct size contact tip over the wire, screw it back in, and replace the gas nozzle. 4. Gas Connection (MIG Mode Only)
Here's a quick breakdown of the consensus on the machine's specifications:
To keep your unit running reliably, follow these maintenance tips :
Connect the ground clamp cable to the Positive (+) terminal and the torch lead to the Negative (-) terminal (DCEN - Direct Current Electrode Negative). cem dual mig 120 manual
Reading through the manual and seeking feedback from current users or the manufacturer's customer support can provide valuable insights into the capabilities and potential limitations of the CEM Dual MIG 120.
Lock the tensioner arm down. Apply moderate tension; over-tightening will crush the wire or damage the motor gear. 4. Operation: Striking an Arc
Ensure the grooved roller matches the knurled profile or size suited for flux-cored wire. 2. Gas MIG Setup (DCEP) Slide the correct size contact tip over the
Inspect the drive roller. Ensure the groove facing inward matches your wire diameter (e.g., use the 0.6mm groove for 0.6mm wire).
Periodically remove the drive roller and scrub the grooves with a wire brush to remove metal shavings and dust.
Are you having trouble with a of the setup, like the wire feed motor or the gas regulator? Reading through the manual and seeking feedback from
The CEM Dual Mig 120 is a classic, compact MIG (Metal Inert Gas) welding machine prized by hobbyists, automotive restorers, and DIY enthusiasts for its reliability and straightforward design. Whether you have recently acquired a secondhand unit or unearthed an old faithful in your workshop, operating this machine safely and effectively requires a solid understanding of its controls, internal wiring, and operational parameters.
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.
Flux-cored welding produces heavy fumes. Always weld in a well-ventilated outdoor space or use a dedicated fume extractor indoors.