If you are really cutting brush, I think that you need the rpms to
cut, chop, pulverize, and remove the brush. Otherwise, you end up stalling the blade, and leaving large chunks behind. With high rpms, anything I can push over gets chopped up. If I could make two changes to the PT brush cutter, it would be a pushover bar connecting the front two wheels, and a debris guard at the back.
If you have lots of rocks, you might want to consider a flail mower, which are more forgiving of rocks. They aren't without their drawbacks, e.g. having to replace flails worn out by hitting rocks too often.
Good luck on your project.
All the best,
Peter
Quote:
Originally Posted by BobRip  One of my friends stated that with low RPMs the engine stalls easily if you hit something. Therefore there is less damage to the blade, etc. If you had a lot of rocks around this might be a good idea. |