You can search the Pfaff website for instructions manuals for free, so here's the instruction manual for the Pfaff HL603A sewing machine from the website.
It's in PDF format so you can view it online, download it to your computer or tablet and print it to keep on hand for free. The manual shows you the names of all the parts, how to thread the machine, how to operate it and how to repair and change the pieces if you have problems.
While you're there, check out the inspiration section of their website to see a wide array of things that you can make with your sewing machine. There are pillows, capri pants, bags and quilts to look at for inspiration to your next project. The monthly projects are also a great way to perfect using of your machine by focusing on different items each month.