Do you have a manual that came with the machine. Usually they have a replacement parts listed. Maybe buying a foot pedal and a walking foot (a walking foot keeps the fabric edges even). I have had a Kenmore machine forever. The only thing I have done is a cleaning ($69.00) and bought a walking foot. The Kenmore machines are sold by Sears. Also Overstock.com has some pretty inexpensive machines that you may want to look at.