Engine RPM vs PTO rpm
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Industrial Toys
Super Star Member
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- 16,742
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- Ontario Canada
- Tractor
- Kubota R510 Wheel Loader + Cab and backhoe, JD 6200 Open Station, Cushman 6150, 4x4, ten foot 56 hp Kubota diesel hydraulic wing mower, Steiner 430 Diesel Max, Kawasaki Diesel Mule, JD 4x2 Electric Gator
It's not critical, but on smaller machines it's usually just about at MAX engine RPM. I guess a little is left for overhead.
prof fate
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- beaver pa
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- kioti ck3510 Cub Cadet 149, 2146, Toro Zero Turn
Most are marked on the tach.
On my Kioti I have 'E 540' just under 2k rpm and '540' at about 2600.
I'm assuming that's the same 540 rpm at the output shaft to the implement...but have no real idea ohter than of course, lower revs uses less fuel.
On my Kioti I have 'E 540' just under 2k rpm and '540' at about 2600.
I'm assuming that's the same 540 rpm at the output shaft to the implement...but have no real idea ohter than of course, lower revs uses less fuel.
Check this thread out. https://www.tractorbynet.com/forums/yanmar/244500-pto-speeds.html?highlight=pto+speed
Industrial Toys
Super Star Member
- Joined
- Feb 25, 2008
- Messages
- 16,742
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- Ontario Canada
- Tractor
- Kubota R510 Wheel Loader + Cab and backhoe, JD 6200 Open Station, Cushman 6150, 4x4, ten foot 56 hp Kubota diesel hydraulic wing mower, Steiner 430 Diesel Max, Kawasaki Diesel Mule, JD 4x2 Electric Gator
Little tractors are known for resonance and vibration. Sometimes it's more important to pick a speed that runs the smoothest, in that neigborhood of course.
California
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- Yanmar YM240 Yanmar YM186D
For the similar US model YM186D: the original showroom brochure says PTO rpm 540 @ 2400 engine rpm.
And credit to the original posters. My notes say:
Thanks, International and rScotty!
RalphVa
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- Charlottesville, VA, USA
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- JD 2025R, previously Gravely 5650 & JD 4010 & JD 1025R
On the 4010 (like a JD 2019E in today's nomenclature), it was about 3,100-3,200 rpm to get 540 rpm on the PTO, and I ran it at that speed because I needed the full 18.5 hp from the engine.
On both the 1025R and 2025R with near 25 hp, I do not need the full hp of those engines. Therefore, I ran/run them at about 2,500 rpm vs. about 3,100 for 540 PTO.
Ralph
oosik
Epic Contributor
On my M6040, the owners manual says - 2160 engine rpm = 540 pto rpm. When I engage the pto, the dash reads out the pto rpm. I often run the engine at 1800 to 1900 rpm. I chip only green pine trees - 6" diameter at the base, or less. Only slightly harder than month old Twinkies.
