kthompson
Elite Member
- Joined
- Sep 12, 2008
- Messages
- 3,509
- Location
- South Carolina
- Tractor
- Kubotas B2710, M6800, L6060 cab, Volvo EC excavator, 2 ZTRs and various implements.
The way I understand it is that it's not to help the blades in any way, they will swing away and hopefully not crack. It's mainly to keep the output shaft from snagging the stump and stopping you dead in your tracks and breaking all kinds of components. I would assume the ones with just a flat metal disc for the blades to mount on isn't really considered a stump jumper, I would think it needs to be the "pan" type with the bevelled-up edge so it rides up and over the stump. It's not really made to continually hit stumps, just to hopefully save you from severe damage on those "rare" occasions one finds you not paying attention !!
I suspect the rotating of the blades and what ever they are mounted to has more to do with it riding up and over a stump than the very slight angle used on a dished stump jumper pan. It might help but suspect any help it is so little it can not be measured. Just my thoughts.