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| I know this has been asked before, and I know that its not optimal and in some cases is considered ridiculous. BUT, I need to get by with a 540 pto disc mower for one more season. I sold the 540 PTO tractor and now all I have is the 4640, which is 1000 pto. My understanding is that if I run it at 1200 rpm, that will make the proper rpm with an adapter. Has anyone tried this? Will it work without tearing up the mower or the tractor? All I need is to mow road sides twice thru the summer. No hills, no pasture, none of that stuff. Seems silly to get a gear box reducer or buy another tractor just for that. Have a Farmall M, with 540 but thats my only other 540 tractor. |
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SW Ontario | It will work..however if the 4640 has the stock aneroid pump settings it will fall flat on it's face under load at 1200 rpm.
I did the same thing with a 4430 on a sprayer...ran it at 1200 rpm on sprayer.
Turn up aneroid and it will be a whole new machine and will do what you want it to do. |
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Ontario | Just have to really watch the rpm |
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southern MN | It works great if you always always always keep your tractor throttle set to half.
Very few people have the patience, discipline, and thought to actually do that for a whole year.
Then you learn how to repair the disk mower. Assuming none of the parts hit you when it flew apart.
Good luck, keep thinking as you mow! :)
Paul |
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SW Ontario | Agree with the patience...you have t remember your tractor does not have big HP at that rpm so you will have to watch the speed and load.
The mistake that will get make is you will overload it so you will go for the throttle...then it will rev up and you might not get it revved down in time to stop the overspeed...parts will be everywhere. |
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Statesville, NC | 1200 is very low rpm for the tractor engine to have any power at all, plus it's not good for the engine. Disc mowers are belt drive. I would take the pulley off the pto shaft and go to a machine shop and get a smaller one. Then you can run the tractor at a good speed. You could get one made about 3/4 original size and run the tractor around 1600 to 1700 rpm. That would give good power and fuel economy. |
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frederick, MD | I really wish all implements would standardized to 1000 rpm. Bought a hay rake and I wanted it in 1000 rpm and it was not avialable. |
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SC Kansas | I do it on fertilizer spreader. Works good. Not much to tear up other than throw off a belt. Going up and down slopes makes it harder to maintain PTO speed. |
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Wallis, TX | As long as you don't need too much hp it will work, as already posted with a stock pump the tractor will die if you load it very much. With what you're gonna' do, I'd try it. We tried a 15' bat wing shredder on a 4555 (1000 on a 540 shredder), did OK for clipping weeds but not good for heavy grass (engine was lugging). |
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Ontario | that's why you use something overpowered. my snow blower has a suggested hp of 80-125 but running it on a 195hp tractor and it works great at about 1400rpm. when it hits deeper snow i'll throttle up a little but you have to really watch |
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| It works well if you have a tractor with good torque. We used to do it a lot with a 1100 massey, and it would hold RPM's pretty well. Also did it with a 1566, but it didn't run very steady. I'm guessing from the experience we have with JD, it won't work very well. |
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North Central Texas | The 275 has a hp requirement of 60. You will be fine. Just feather the pto in when you start to keep from burning the belts up. Run it at 12-1300 and go.the belts will take the lug out. |
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| I do the same exact thing with a 7240 and a 9' disc mower. You'll be fine |
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| If the tractor engine has enough power at 1100 RPM it will work for you. If anyone else runs that setup and sets the tachometer to the standard PTO speed the mower will probably explode. That's the big danger that they don't know they need to run it slow or you forget in a few years, either way the mower probably will turn to scrap, might take tires with it.
With the 21 to 6 spline adapter the PTO shaft may be too long so it binds when you lift the mower. You might have to shorten the PTO sliding shaft part or replace the front U joint 540 yoke with one made for 1000 RPM. You should label the mower and the cab with water proof marks that the mower is only rated for 540 RPM. A Sharpie Laundry Marker will stick around a lot longer than a standard Sharpie in that situation.
The idea of a smaller pulley on the gear box to the drive belts may work but the smaller pulley will have less belt contact and so may not handle the required power and lead to wearing the belt rapidly.
A different gear box would be optimum if possible.
Gerald J. |
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Saronville NE | Do it on a dry spreader in spring for pasture, run small spreader on a 8300. Get along fine, but wouldn't want to have anything that is heavy that would need the hp for. |
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SW Ohio | If you're not doing very much like you said road ditches, then just use the M. Saves a lot of worry and messing around, especially if you have to go to changing drive yokes and such. |
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SW Iowa | There's a post on here back in June of '12 with the same question. Says Kuhn offered a change over kit and gives a part number, should be same as a Deere.
We ran a 275 on a 3010, little under powered but worked. |
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Ontario | yes when you're setup like that it's a good idea to never let anyone else run it or it's almost certainly going to cost you.
for my blower i had to run a shorter shaft plus change the yoke. when you run the adaptor it doesn't look like it'll make much difference but it really does. changing the yoke is actually more dangerous since there's really no way to tell it's actually a 540
Edited by Andy578 2/2/2016 21:19
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Douglass Kansas | Trent2520 - 2/2/2016 16:39
1200 is very low rpm for the tractor engine to have any power at all, plus it's not good for the engine. Disc mowers are belt drive. I would take the pulley off the pto shaft and go to a machine shop and get a smaller one. Then you can run the tractor at a good speed. You could get one made about 3/4 original size and run the tractor around 1600 to 1700 rpm. That would give good power and fuel economy.
We did this on a fertilizer spreader so we could get good fuel economy, and still have the power to go 10 mi/hr. |
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running a 540 pto with 1000 pto tractor
