Anyone ever use the 2nd PTO speed on their B7500?

   / Anyone ever use the 2nd PTO speed on their B7500? #1  

don716

Gold Member
Joined
Aug 20, 2003
Messages
283
Location
North Georgia
Tractor
Kubota/ B7500/with 2000 lb winch
I just found out the B7500 has a 2nd PTO speed on the rear and I think it's a 960 rpm. Has anyone used it and if so what?? Can you use it with a RFM or would the 540 rpm be better??
Donny from Georgia
 
   / Anyone ever use the 2nd PTO speed on their B7500? #2  
Re: Anyone ever use the 2nd PTO speed on their B75

Well, you definitely want to spin your rear mower at 540 RPM (unless you've got one designed for a higher speed, which is unusual for compacts in the US). However, if you are doing light mowing that doesn't load down your engine (or if you have an engine much bigger than what is needed to run your mower), you can save some fuel by putting your PTO in the higher range, and running your engine RPMs down lower to make the PTO speed still come out to 540.

If the 2nd speed of 960 you gave is correct, you'd run your RPMs at 56% of the normal PTO RPM to make the output equal 540 RPM. This trick works a bit better on those tractors which have a 540/750 two speed PTO. Running on the 750 PTO setting only requires throttling back to 72% of Normal PTO speed, so you still have more HP available.

There are other applications where you can use this trick: one that comes to mind is if you have a hydraulic PTO pump running a log splitter or something similar which does not require the full HP of your tractor to operate.

John Mc
 
   / Anyone ever use the 2nd PTO speed on their B7500? #3  
I have an older tiller that uses that speed. Other than that, besides saving fuel on lighter PTO hp requirements, it doesn't get used. Perhaps that's why so many tractors don't have it.
 
   / Anyone ever use the 2nd PTO speed on their B7500? #4  
The 960 RPM setting is for running cetegory 0 implements!

The ones designed for big garden tractors....

In general terms it's not used.

Regards,
Chris
 

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