go ahead and take off teh face plate, nothing will get lost or fall out,, once you have that off,, you'll see what they talk about . I did find a site that gave a every detail on doing this , Buuut can't find that now... the needle bar, presser bar, the whole 9 yards will come off with that plate...
The first few times will be a bit tricky in putting it back on,, after that you'll do this without blinking an eye