Mowing Pto speed brushhogging

[7879fordman]

Ok should the pto speed gauge be around 540 or am I running to high a rpm .
M7040 with 1872 landpride




















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[MIKE R]

Chances are the mower is rated at a 540 max rpm. Running a little slower won't hurt it but running to far over speed can cause premature wear on it.

 

[Tractor Seabee]

Check your manual. My Kubota's PTO 540 RPM is obtained at max engine RPM. The newer machines have a governor that prevents over speeding. Max RPM (throttle wide open) is what they are designed to do. I only run my PTO stuff at Max unless I need max Hydraulic pressure (rare). Max Hydraulic pressure is also obtained at Max engine RPM. Poer is relative to RPM.

Ron

 

[2458n]

Run 540 on your PTO and gear the tractor up or down.

 

[7879fordman]

Ya the landpride operating instructions says maintain 540 rpm pto speed and 2-5 miles a hour or slower for dense stuff .

So the gauge shows the pto rpm right . So I was a little over there in the one pic at 560 pto rpm . And I had it slow in the other .

I'm used to the one only tractor I have 135 mf . And was taught to bushhog it at 1500-1700 engine rpm. And that is about 3/4 throttle .

And in the pic were I have the kubota at 560 pto it's at 3/4 throttle . So watch the pto rpm gauge and keep it at 540 .

Thanks guys as I have no one else I can ask .

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[TripleR]

We run our L5740 and M8540 at 540 plus or minus a bit, may bog down a bit in tough stuff going up hill. We use a LP RCR2672 on the 5740 and Woods DS1260 on the M8540. On the M8540 if it bogs down a bit I will use the foot throttle temporarily to kick it back up a bit, but only if it drops quite a bit.

The Kubota seems to really be running high RPM in comparison to the old Ford, Case, Massey Fergusons we have, but you get use to it.

 

[Ken45101]

It all depends on the tractor. IIRC, the MX5100 only reaches 540 at WOT. My M5040 and M9540 are way overspeed on the PTO at WOT (something beyond 650 rpm) and I have to pay attention to avoid overspeed.

That was one of the things I didn't like about the MX5100, I don't like running engines at WOT.

 

[PHILIP8N]

I set my pto to about 560 rpm unloaded. When I pull into an uncut area, pto will drop to 540 rpm (2650 engine rpm). If I get into heavy stuff and the pto drops to 500 rpm, I will slow travel speed and bring pto back up to 540 rpm. I get best cut at 540 pto rpm. Philip.

 

[7879fordman]

Thanks guys .

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[bigbull338]

ive always ran my pto at 1800 to 2000rpms .never have i ran it at full 540 pto speed.