The retractable cord on my

Question

The retractable cord on my Pfaff model 1475cd sewing machine wasn't working, so I decided to take it apart to see if I could fix it. After I got the screws out the springs flew out. I must have lost a piece that makes an electrical contact, because it wouldn't work after I put it together. I can make it work by running a wire from post to post while I have it apart. I could repair it if I could find the part I am missing. I have spent hours on the internet trying to find a parts list. Thank you for your help