PTO--speeds

I have a Kubota B2320 with two speed PTO. I think 540 and 1000.
I have a LMC 4' finishing mower that I mow my lawn with.
I run the mower @540 as recommended, and run the tractor wide open 2,200RPM.
Since all my mowing is very light trimming, engine is never loaded.
Would it be feasible to operate the mower @ 1000 RPM and run the tractor one half throttle, like 1200rpm?
Sure would be a lot quitter.

Yes that is one of the advantages of that set up. IF your mowing is just light, you just do not want to lug the engine but spreading things with a rear spreader , light mowing and things will work just fine like you are talking about. NOW I have had folks overspeed their finish mower by going on up with the tractor engine speed, Just hold it down and you will be fine.

(quoted from post at 03:00:20 04/16/17) Yes that is one of the advantages of that set up. IF your mowing is just light, you just do not want to lug the engine but spreading things with a rear spreader , light mowing and things will work just fine like you are talking about. NOW I have had folks overspeed their finish mower by going on up with the tractor engine speed, Just hold it down and you will be fine.

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Thanks, that was my idea. I am not new to equipment and I am well aware of problems with lugging an engine.
Just doesn't make sense to run the machine @ 2200rpm with only cutting a couple of inches of grass with a 4' mower.

If your mowing is light enough, just reduce the engine/pto speed as long as the mower is cutting as you desire. You do
not have to run it wide open.

Hey Jiles, just south of the river
from you; i have a L3240 which only
has 540 rpm and i run a 6 ft. woods
mower at about 1700 engine rpms which
gives about 400 pto rpms. Tractor
and mower runs perfect with good
results. Of course taller grasses
gets more rpms when needed. Been 8
years now no prolems.

(quoted from post at 03:18:06 04/16/17) If your mowing is light enough, just reduce the engine/pto speed as long as the mower is cutting as you desire. You do
not have to run it wide open.

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Yes I realize that, but the mower is designed to run at 540rpm for proper cutting and discharge.

I have owned several tractors with two speed pto and always wondered what would be run at 1000 rpm, other then possibly a blower?

Yes.

The thing to watch for is lugging, as mentioned.

And the human nature tendency to nudge the throttle up just a little more... Just a little more....

Paul

(quoted from post at 05:00:43 04/16/17) Yes.

The thing to watch for is lugging, as mentioned.

And the human nature tendency to nudge the throttle up just a little more... Just a little more....

Paul

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Speaking of "lugging"--About twenty years ago, or longer, a man I worked with, had a Ford tractor that was running hot. He had several mechanics advise him of the problem and had spent money to find a solution.
By chance, I went to his home to look at an item he had for sale. He was in the process of plowing a field with the Ford tractor.
I watched him for a short time and thought I knew what his problem was.
He was running about 1/2 throttle and really straining the engine.
He stopped, said tractor needed to cool and we loaded the item I had bought.
I asked him if I could try the tractor and see if I had any ideas.
He agreed and I ran the tractor wide open and made two passes around the field.
He was shocked to see the temperature was NORMAL.
What I remember most is the nervous pacing he was doing while I was plowing.

You should be fine but you will find your tractor severely limited on power at half throttle. I had to do that with the JD 5020 I owned to run fertilizer carts. It would barely pull itself running at half throttle even on flat ground. So I finally switched to a JD 4020 to run the carts.

As for what equipment uses 1000 RPM PTO speeds? well it is becoming much more standard with larger tractors becoming the norm on many farms. Here is short list of the things using 1000 RPM PTOs on the farm: Manure spreader, grain auger, Disk mower/conditioner, 15 Ft. batwing mower, 10ft. snow blower, and etc. Twenty years ago you would have only found a few items that used 1000 RPM PTOs on the average farm.

I used to have a Pasquali 986 full-time 4x4 tractor. It was 21hp, 1 cylinder diesel. I had a 5' rotary brush mower on the back. Tractor had 540 and 750 RPM gearing. I'd usually run the cutter in 750 at a lower throttle. However, got into some grasses a few times where I was running full power at 540 RPM and still going at a turtle's pace.

(quoted from post at 00:44:46 04/16/17) You should be fine but you will find your tractor severely limited on power at half throttle. I had to do that with the JD 5020 I owned to run fertilizer carts. It would barely pull itself running at half throttle even on flat ground. So I finally switched to a JD 4020 to run the carts.

As for what equipment uses 1000 RPM PTO speeds? well it is becoming much more standard with larger tractors becoming the norm on many farms. Here is short list of the things using 1000 RPM PTOs on the farm: Manure spreader, grain auger, Disk mower/conditioner, 15 Ft. batwing mower, 10ft. snow blower, and etc. Twenty years ago you would have only found a few items that used 1000 RPM PTOs on the average farm.

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Apparently the 30 series Dubuque tractors and Waterloo 530,630 & 730 had an optional 1000 rpm pto iirc. Internal 1000rpm or with an external gearbox and a longer drawbar. The 430 gasser would possibly be one of the lowest HP 1000rpm tractors ever ?

(quoted from post at 02:52:15 04/16/17)

The 430 gasser would possibly be one of the lowest HP 1000rpm tractors ever ?

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b&d
JD 430 @ 29.2 pto hp was far from the smallest tractor with 1000 rpm pto. The Kubota in this thread depending on type of trans is only 17 or 18 pto hp

Alright , one of the lowest HP 1000 rpm tractors of it's era and for several decades afterwards.