Quote:
Originally Posted by Mith  Thanks for the replies guys, I didnt expect to recieve such a thorough response. I'm still digesting the information.
At this point I am seriously considering hydraulically running a 540rpm PTO. If I have a flow of about 18gpm @1500-2500psi (I prefer the lower pressures) then I believe I should get the power I want based on what you guys have running your direct drive mower decks.
Thanks again |
You already stated that you had about 31
HP, and going from what you have stated, the pump will take 31
HP at 2500 psi to run a hydraulic motor at 540
rpm. With an 85% efficiency, that puts about 27.5
HP to the mower deck.
If you run it at 1500 psi, it will take 18
HP. So, based on this, you will have to size the bush hog accordingly. Some people seem to run the bush hog at lower
rpm for whatever reasons. Perhaps someone will reply and state the advantages or disadvantages at running at lower
PTO rpms.