I'm having a hard time understanding. Is the take-up lever hitting the machine? Or, is the clicking happening when the feed dogs come up and hit the presser foot? Either one will cause a clicking sound or binding feeling.
Are the "2 big screws" inside the "head?" Or on the front and back of the machine. Looking at pictures of the machine online, and still feeling very confused.
I understand the the end of the machine with the needle bar comes off, and you have to get it back on just right. Is that where you're having trouble?