Welcome to the forum Tom. Just in case no one answers who has a manual and hasn't posted it, what is that you need to know? I can tell you that it was made by Ryobi (315.=Ryobi). Parts will hard to impossible to find most likely unless you find a dead one. If it is an operational issue then post a picture, someone here has likely owned one. You can post pictures aslong as they are in your hard drive by going advanced, manage attachments, browse files, open, and then upload.
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.