PTO Speed in an HST

[Hotrod1765]

Forgive me for this, it seems like a dumb question but I’m going to ask anyways. 2018 L4701 HST, is the PTO speed controlled solely by the engine speed or throttle position? I’m accustom to the 50’s generation equipment that was all gear driven. On that equipment you had high and low speed levers for PTO speed or some other mechanical option for the speed. Of course the PTO spun faster if you’re at higher RPM also. It just seems strange to me on this modern equipment you must run the engine at 2300 RPM to turn the PTO fast enough for a finish mower. I can’t find anything in the book that answers this clearly.

Thanks in advance!

 

[Ramos]

Yes, PTO speed is governed by engine rpm and is independent of ground speed. Depending on model, you may have the option of running at a (set) lower engine speed and still have the PTO running @ 540 rpm. I think Kubota may call their version 'E-PTO'.

 

[North Idaho Wolfman]

Forgive me for this, it seems like a dumb question but I’m going to ask anyways. 2018 L4701 HST, is the PTO speed controlled solely by the engine speed or throttle position? I’m accustom to the 50’s generation equipment that was all gear driven. On that equipment you had high and low speed levers for PTO speed or some other mechanical option for the speed. Of course the PTO spun faster if you’re at higher RPM also. It just seems strange to me on this modern equipment you must run the engine at 2300 RPM to turn the PTO fast enough for a finish mower. I can’t find anything in the book that answers this clearly.

Thanks in advance!

It's controlled by the engine speed, and no there is not a option on that model for a 540 / E540 (two speed PTO) to lower engine speed, it's becoming more and more popular on newer equipment.

 

[nickelplated5s]

With a 4701 you want engine RPM's up anyway.