well unless someone is generous enough to scan a diagram out of a manual the only place you can inquire about one would be a Taylor (big red)dealer.
The closest one i can find to you (if you live in Texas as your forum user information indicates) check with HUGG & HALL EQUIPMENT in Oklahoma, they have branches in Tulsa and Oklahoma city. They may give you a diagram if you supply them with full model and serial number of your machine, or they may sell you a manual.