I am using my new brother CS-60001 sewing machine for the first time and I can't stop the bobbin thread from tangling. I feel the machine is threaded correctly, the bobbin thread is tightly wound and the bobbin has been placed in its "spot" correctly. What can I do to stop the tangling? BTW, the machine is on straight stitch 00 and the tension is set to 4. I have tried adjusting the tension, but the bobbin thread still tangles. Thank you!

Hi. You "feel" that the machine is threaded correctly? You should probably completely pull the thread out and start over, making certain that it is threaded correctly. Once that is done, double check to make sure the thread is pulled all the way into the tension discs. Make sure also that you have lowered the presser foot. Is the bobbin inserted in it's case correctly? Every aspect is critical to proper function. You may also want to revue your manual.

The upper thread is NOT threaded correctly. Put your tension dial back to where it should be and re-thread the upper thread correctly, Voila the machine will work.