So I have been woodworking for most of my life, but I have just decided to get serious about it. I have been adding some nice tools to my shop. I found a nice, belt driven table saw from craigslist. Craftsman 10 inch contractor series, 113.299410. I have been learning all about trunions and the adjustments i can make that I have never had to make on my cheap table saws. I rarely ever used a table saw until I bought this one. Actually i hated using them. First off, the saw did not come with a manual. I have searched the Internet and called craftsman themselves trying to find one. Can anyone point me in the right direction or does anyone possibly have a copy of a manual for this machine. Last weekend I was making a 45° cut which came out nicely. The problem is that I could not get my blade to come back to 90°. I tried cleaning the threaded bar and the bearing along with many other failed attempts. Well today I tried adjusting an Allen bolt located on top of the machine and that worked. I loosened it so much that my blade went passes 90. So I have to assume that the two Allen bolts on top of my table are actually stops for my blade angle. Does everyone agree? There is also a spring loaded handle located under my table. This handle turns a bolt that goes into the front trunion. Can anyone tell me what purpose this handle serves. I have tightened it and loosened it but it doesn’t seem to effect anything about how the saw operates. Thanks in advance for all advice.