Thank you Hockeymender, but I decided to bring it to my sewing center as I needed to readjust the needle bar height and that went out off my skills. The guy changed the broken part, adjust the needle bar and cleaned it all. I just received my machine fixed. He couldn't try it because a part was missing. Fortunately I had it on my replacement machine. I changed it, now I'm good. Now I want to use the bobbin winder at the right of the machine and I am stuck at this point. I am not able to disengage the needle mechanism. On other machine there is a way to unscrew and loose the hand wheel to disengage it. On the Pfaff 335 there is no such mechanism. In the middle of the hand wheel there is only a screw that hold it in place (same thing on my other machine). I searched for a lever or another screw, no visible way. Either in the instruction manual. I need to disengage the needle mechanism on my Pfaff 335. Only one step separates me from sewing. If anyone knows this sewing machine model please manifest yourself! Give me a hand please. Gabriel