What raises and lower the presser foot?
10) Presser Foot Lever—Raises and lowers the presser foot. When it is in the upward position, the upper thread tension is released.
Do you sew with the presser foot down?
Always be sure your presser foot is in the DOWN position before sewing. Sewing with the presser foot in the up position will cause your thread to tangle and your bobbin to jam. Change needles regularly (after every 6 – 8 hours of use) as dull/weak needles can cause damage to your machine and fabric.