Thread it up and do some test runs--change tension controls one at a time and in small increments. I find it is helpful to serge a piece of cloth and then make a note of the tension settings..attach the sample & note together in a notebook. remember your original setting for returning. Especially helpful for differential feed. My sergers have been Elnas, so am not familiar w/your brand. Play and have fun and learn how invaluable the serger can be!