I just inherited an old 16" FMC Wayne Chipper (Chuck n Duck). I am no expert on these, so I need some help. I am looking for a manual to assist me. I see a few manual searches for the C16 model, but mine is a B16T318. It has the Chrysler 318 on it, so I am assuming that is why the "318" in the model number. My question is: What is the difference between the B16 and the C16; and any chance the manual for one might work for the other?