How do you thread a dress maker model 606 sewing machine?

To thread a Dressmaker Model 606 sewing machine, start by placing the spool of thread on the spool pin and pulling the thread through the guide at the top of the machine. Next, thread it down through the tension discs and follow the designated path, making sure to go through the take-up lever. Continue threading down through the needle bar and finally thread the needle from front to back. Always refer to the machine's manual for specific threading diagrams if needed.