I recently bought a Craftsman 10" Contractor's Table Saw Model # 113.299315 for $50 in excellent condition. While checking alignment and considering replacing the pullys and belt, I noticed that when the blade is fully raised, the pully on the blade shaft comes in contact with the underside of the table. Should there be a stop which would prevent this or do I just need to check it out each time I want to use it with the blade way up. I was considering replacing the 2 1/2" pullys with 3" but this would limit the height even more. Ideas anyone?