On the long-shot that someone out there can help me out:
I bought a used BCS 720 with a few implements. One was a flail mower (Bladerunner 60) which is broken. When engaging the PTO, there is a quiet grinding noise and no action on the pulleys or rotor. I think I've narrowed it down to a specific part: part 16 on the "Gear box - Input" page of this document: http://www.bcsameric....ladeRunner.pdf
It's a brass brake cone that is supposed to be pushed out to engage with the shaft jaws. I think it's not engaging. Looking closely at the part it didn't look overly worn at first glance, but then I noticed that the edge of the jaws on the brass cone were beveled. I got to thinking "Maybe they SHOULDN'T be. Maybe that's supposed to be a right angle."
BCS wasn't be sure. They don't have any parts here in America and are working on getting parts and drawings from Italy. That's going to take a while. In the mean time...
...does anyone out there have a BCS flail mower and the desire to see if this part on their mower has bevelling on the jaws?