- Jul 26, 2018
- Property is in Floyd County VA
- '05 Massey Ferguson MF1533
Most are built as you described. You still need a shear bolt or clutch to prevent destruction to the gear box on the mower or the PTO of the tractor should something get caught in there and stop the rotation of the main mover of those blades.. Remember, you are dumping a lot of power into that mower. If things get bound up, they get messy.. right? Something has to let that power be dissipated and the swinging arms are not enough in all cases. The shear bolt or slip clutch protect the main power delivery systems from catastrophic damage.I read all pages because I'm always interested in learning something I've never seen happen. My brush cutter has two blades that swing from one end of the blade. When I hit something, as too often happens, stumps and rocks, the blade gets nicked, but it swings out of the way. I thought they all were built like that; not so? Does that mean my type doesn't need a slip clutch or shear bolt?