The Ryobi and Craftsman are made of the same manufacture parts.
I have the factory Operating Instructions and Parts List for the Craftsman Power Hack Saw Model # 108.1502. What is your question?
Google the name and number on the internet. Most Craftsman tools have manuals online.
Look for similar on sale in eBay.
wHERE TO FIND PARTS FOR A MASTER MECHANIC 8550 CIRCULAR SAW
Contact the manufacturer.
go to sears.com look up power tools in the craftsman section click on similar item (i.e. miter saw and then click more info. This will lead you to another page that has links to sears technicians, parts, manuals, product reviews, and a lot of knowledge
The model could be on a metal model plate, or on a sticker. The model label could be anywhere on the saw, look over it on every part for the numbers.
Craftsman
http://vintagemachinery.org/pubs/detail.aspx?id=2832 Guaranteed this is the manual for your saw... It's a 22 inch length table, hard to find saw.
You can find it here: http://www.managemyhome.com/mmh/lis_pdf/OWNM/L0307263.pdf
Where can I find parts for a 10 inch master mechanic table saw?