Your Adler is a 1950's , 1960's machine. It is a big bobbin high lift machine. It uses needle system 332LG and 332LL LG. first is round point, second is leather point. What people do not know is Adler shoepatcher can get out of time as far as the needle bar goes.. If you want to install a servo motor on it, I can walk you thru how to do it. Been working with shoe patchers of various makes and models for over 40 years. Let me know.