Hi, new member. Welcome to the forum, were you'l gets lots of info on using your new machine. Just GOOGLE, Singer manuals and there is a FREE site the has almost all singer manual and parts lists. Sorry i don't have the link handy.
That will give you limitations on foot hight, thread sizes, and needle systems for you steel.
There also is a guy on here named Bob, from Toledo Industrial Sewing, that has a lot of singer knowledge and he can help you with advice and probably parts, etc.