Broken feed gear/gears is very likely. They are made of plastic.
Chas, July 2015
Broken feed gear/gears is very likely. They are made of plastic.
Chas, July 2015
open bobbin door and see if there is a silver lever on rh of opening,move it up wards and see if it works,if not there is maybe spring missing or feed dog cam is loose ,worn or stuck