On my 1026R ( and I imagine the rest of the 1 series) when I engage the rear pto the pto rpm also shows up on the instument cluster. I run mine at 450, but am usually cutting in thick grass like fescue.

 

I start the PTO at a lower RPM, say around 1800-ish, then throttle up to 3200 RPM, which gives you a rear PTO RPM of 540. I do my cutting at or near the 540 PTO RPM. When done, I throttle back down before disengaging the PTO. Starting and stopping at a lower speed puts a lot less stress on the PTO drive gears.

 

Don't need the hp of a 1025 or 2025 for a 4 ft bush hog. So, both run at 2500 rpm vs. 3000 for "540".

 

No, the 1025 runs at 3200 engine RPM to get 540 rear PTO RPM. I believe the 2025 is the same. 3000 RPM gets you around 510-520 PTO RPM. 2500 RPM gets in the mid 400 RPMs I believe.

I don't understand your statement of "Don't need the hp of a 1025 or 2025 for a 4 ft bush hog."

 

As far as I know all rear PTO implements are designed for 540 RPM. Obviously they can be operated lower if you want. I just operate at wide open throttle and when the load is applied they setle down to about 540 and seem happy. I only have a Brush Hog and a Chipper so have no other experience with other equipment like maybe a post hole digger etc.

 

As far as I know all rear PTO implements are designed for 540 RPM

540 or 1000. The SCUTs are 540.

 

WOT is where these tractors prefer to run. These little screamer Yanmar engines love it.

 

I don't follow most of this logic. A 540 implement is meant to be run a 540 RPM no matter what engine RPM that happens to be. My tractors have all had economy PTO so for me 540 has been around 1700 engine RPM for the last 20 years. I like EPTO because it allows me to run much less engine RPM which I think helps with wear and tear. Obviously you can run at reduced RPM but these implements are designed to maximize efficiency at 540 RPM, especially rotary cutters.

With the series 1 , running engine at 1700 rpm is a tad below our idle speed meaning the pto is turning maybe 325rpm.

IF 330_D had mowed that field at that idle that field would not have looked as good as it does. Sharp blades or dull blades.

 

Like said.. I engage the pto on the 2032R at an idle with the mower (60") about 20-30cm off the ground.. Give everything a moment to come to speed and settle a bit.. Put the mower down to working level, and throttle up to pto speed..


Like in 330_D post.. I mow to control thistle and brush..

 

Rotary mowers are designed to operate best at rated engine speed (540rpm PTO) - optimum blade speed and lift. The hydro trans allows you to go fast or slow as needed depending on the density and height of the grass.

 

I run according to what I'm cutting. Heavy grass probably does require a full 540 rpm, whatever that is on your tractor. I might run less rpm in light stuff or if other conditions warrant like I think there might be stumps or something I'm not sure about in the way.

Don't overspeed a mower but running it at speed is fine. Just use some judgement if conditions are a little shaky or unknown.

Treefarmer

 

Regardless of the RPM that you chose; You'll get a better quality cut with sharp blades applied to dry grass or brush,

Brian

 

I don't follow most of this logic. A 540 implement is meant to be run a 540 RPM no matter what engine RPM that happens to be. My tractors have all had economy PTO so for me 540 has been around 1700 engine RPM for the last 20 years. I like EPTO because it allows me to run much less engine RPM which I think helps with wear and tear. Obviously you can run at reduced RPM but these implements are designed to maximize efficiency at 540 RPM, especially rotary cutters.

 

ePTO is like "overdrive", it allows you to run at a slower engine RPM. But the downfall is you will not have as much torque available to do "tough" jobs (operations that need HP - i.e. heavy/tall grass mowing).

 

I pretty much always run at WOT when mowing.

 

No E-PTO option on a 1025. The peak power of the engine is reached around 3000 rpm. Anything at the point or above is getting the max HP to the PTO equipment. The only reason to pass that is to reach the proper 540 speed at the Rear PTO.

 

No E-PTO option on a 1025. The peak power of the engine is reached around 3000 rpm. Anything at the point or above is getting the max HP to the PTO equipment. The only reason to pass that is to reach the proper 540 speed at the Rear PTO.
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I ran the 1025 at 2500 and now the3 2025 same for the 4 ft bush hog. Shows a little over 20 hp. The 4010 had plenty at 18.5 engine hp for 4 ft hog.

 

 

I don’t think it matter, as long as you are happy with the cut. It will cut better at faster speed, but up to you. Biggest thing with a brush hog is to start it up at low speed. Brush hog blades are heavy. When you turn the PTO on at high rpm’s, it’s hard on the tractor. Also, reduce idle before you turn it off, save you pto brake.