Owner of the 355T picked up the saw today, started, and ran it. He understood what was wrong after he tested all four screws with a small screw wrench, spinning them CC and CCW with ease, He agreed to run it until it was gone and thanked me for being as honest as possible. He thinks that one of his operators overtightened and stripped the threads but he has no idea when or why it happened. He also agreed that eventually when this saw was no longer usable that I could add it to my boneyard for salvageable parts. I charged him nothing because I could likely use those parts to repair other 355T saws that he has.
Thanks again to all those who contributed to this thread. Two thumbs up!
Thanks again to all those who contributed to this thread. Two thumbs up!