I have an apparently old model (belongs to the neighbor...I'm her lawngirl) and it needs string. It has to be put in the spool....and I'm not doing something right. I managed to get it loaded. And used it some but then the string wore off I guess...cuz when I flipped it over there wasn't any string coming out. Maybe I'm making it too hard. Getting another isn't an option. I just need to get this one up and running again. LuAnn