OK I bought a juno serger,(about $200.) could not for the life of me figure out how to thread it. Wanted to toss it out the window, was so mad.
Went to my local Pfaff dealer and bought a ($1100. Pfaff serger) Which had on line threading info and a CD of the same. Was easy to do step by step, so easy in fact that I was then able to thread the juno, (which I later sold)
Now have a lap top computer (which I traded with my sister for my old Pfaff 1229 with IDT) I can have right by my serger, with threading CD and paly it while I thread it. Works for me.