I just purchased a Craftsman 10" Radial Arm Saw today for $70. It needs a bit of cleaning up, but seems to work well. While looking for a user manual, I found this site along with the below info. I hope this helps.
You can get a pdf copy of the user manual here. http://www.owwm.com/mfgindex/pubdetail.aspx?id=2238
FYI: There is a recall on the Craftsman saws having a model number starting with 113.
apparently the Craftsman Radial Arm Saws are/were made by a company called emerson tool company and are the subject of a recall for a defective blade guard - check out the link below and down load the manual and save a couple of bucks since sears still charging for the manual
I got a copy of 1 of the saw manuals. I got it from a link on the Sears parts website. My saw is pre 1977 so it is not a recall. Check the DOM. Enter your part number and if they have it woolah. If you don't know your number try this one, 113.23100.