Welcome from NJ.
Neesie beat me to the punch advising you to go to the Vintage section of the board. Also, you could look online for a manual for that machine. I believe there are free versions for download. You may need to take off the face plate and re-connect something and probably do some oiling/cleaning as well. There are also some very good tutes in the vintage section here regarding cleaning/repairing that might answer you question. Depending on the price of the machine, it might not be to costly to have repaired professionally if you're not comfortable doing this yourself. Might want to get an estimate on that as well as general tune up and negotiate the price of the machine accordingly.
Good luck.