My Serger!

Last year I found this old serger at a garage sale, and bought it. I only started cleaning it and trying to figure it out in the last couple of weeks. I had to buy the manual on eBay. I threaded it with regular spools of thread because I don't have the special ones... It took forever to thread, but it was worth it! It actually works! Here's a pic of the serger and the first piece of fabric I tried it out on. The tension of the threads is hard to figure out, but hopefully I'll get it eventually.