Simple to Thread.

Just follow the colors throughout the threading process. Oh, the things you will be able to create with an overlock. The possibilities are limited only by your imagination. If you have a spool of thread on the purple stand just guide it through the purple tension adjuster and thread it through all the channels which are marked with a purple dot. Accordingly, do the same with the other 4 thread spools and colors. So simple. Even a gecko can do it.