I need The Villager's Help.I was able to get down to my shop today,and I started to have a little problem with my saw,the Top Blade Clamp wasn't clamping like in the past,I tried tightening tighter,it worked but I was concerned about over tightening.I found out after visiting Delta's sight,that they no longer make these clamps.My saw is a Delta mod #40-694 If any of you can help me Please.