ePTO Kit?

[tinygiant]

I have a 2015 M7060. I'll likely be using it as a standby power source with a PTO generator a couple of times a year. To that end, since I need to generate 540 rpm to get full generator power, I'd like to save a little gas and engine wear. I've seen kits on eBay (Kubota part #3C-131-97710) to convert to ePTO for about $800. However, none of the local kubota dealers knew anything about these kits. Anyone have info on where I can get one of these kits (besides ebay)? My Google searches of the part number didn't amount to much.

Thanks!

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[100 td]

Each to their own, but I doubt you'll save $800 in fuel and engine wear over many years if you use your generator a couple of times a year.

 

[hseII]

Each to their own, but I doubt you'll save $800 in fuel and engine wear over many years if you use your generator a couple of times a year.

I Completely Agree.

 

[SDT]

I have a 2015 M7060. I'll likely be using it as a standby power source with a PTO generator a couple of times a year. To that end, since I need to generate 540 rpm to get full generator power, I'd like to save a little gas and engine wear. I've seen kits on eBay (Kubota part #3C-131-97710) to convert to ePTO for about $800. However, none of the local kubota dealers knew anything about these kits. Anyone have info on where I can get one of these kits (besides ebay)? My Google searches of the part number didn't amount to much.

Thanks!

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EPTO is a dealer installed option on some models, e.g., M9960 (I have it on mine). It is standard equipment on other models including the M7060 HD12 and HDC12.

Your dealers are being lazy.

SDT

 

[SDT]

Each to their own, but I doubt you'll save $800 in fuel and engine wear over many years if you use your generator a couple of times a year.

Of course not, but operating the engine at around 1,700 RPM rather than 2,400 reduces wear and tear, accumulated hours (revolutions), and noise.

SDT

 

[tinygiant]

Of course not, but operating the engine at around 1,700 RPM rather than 2,400 reduces wear and tear, accumulated hours (revolutions), and noise.

SDT

This, and when not being used as a backup house generator, it'll be used to power a welder and air compressor for field work. I imagine there will be at least 100-125 hours a year of generator usage, so I want to reduce wear on the tractor as much as possible. Noise is also a huge factor because it will be parked near the house when it's running. If I had this setup working last year, it would've been running for five days (off and on) after a hurricane came through.

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[tinygiant]

EPTO is a dealer installed option on some models, e.g., M9960 (I have it on mine). It is standard equipment on other models including the M7060 HD12 and HDC12.

Your dealers are being lazy.

SDT

Yep, my local Kubota dealer is very lazy. Not even sure how he's still in business. I spent over an hour in there a month ago trying to explain the concept of power beyond to him. Guess I should head up to the next town to check out their shop.

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[North Idaho Wolfman]

I have a 2015 M7060. I'll likely be using it as a standby power source with a PTO generator a couple of times a year. To that end, since I need to generate 540 rpm to get full generator power, I'd like to save a little gas and engine wear. I've seen kits on eBay (Kubota part #3C-131-97710) to convert to ePTO for about $800. However, none of the local kubota dealers knew anything about these kits. Anyone have info on where I can get one of these kits (besides ebay)? My Google searches of the part number didn't amount to much.

Thanks!

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You won't save any gas... your tractor runs on diesel.

You most likely would not gain anything depending on the size of the generator, you might even do damage to either the tractor or the generator.
When you run in e540 you only have about half the HP to the PTO, this could cause a serious issue.

It is not recommended that you run any high HP attachment on e540.

So the $800 you spend Plus the labor to install the kit, could cost you a ton of money!

 

[tinygiant]

Wolfman, actually a really good point. I was wondering the other day if there are any resources that have data about available horsepower at various rpm (PTO and ePTO). Know of any? I understand Kubota doesn't have these tractors tested at UNL, so this body of knowledge may not exist.

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[SDT]

Wolfman, actually a really good point. I was wondering the other day if there are any resources that have data about available horsepower at various rpm (PTO and ePTO). Know of any? I understand Kubota doesn't have these tractors tested at UNL, so this body of knowledge may not exist.

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Of course PTO HP is reduced at reduced engine RPM. Torque is correspondingly reduced because the EPTO unit increases PTO speed vis a vis no EPTO (It's selectable, of course).

EPTO is intended for PTO loads requiring 540 PTO RPM but not requiring high HP. This allows one to drive such moderate loads at rated PTO speed without operating the engine at rated speed. Doing so reduces wear and tear (revolutions), fuel usage and noise. I use EPTO regularly on my M9960.

Of course you need to use common sense.

SDT

 

[07wingnut]

I did this for years on the farm. Run the generator at full throttle at 540rpm for heavy loads while milking and feeding, then shut down, hook the generator up the the 1000 rpm pto with an adaptor, and for the rest of the day, the tractor runs at practically half speed, under light load.

 

[tinygiant]

Wingnut,

Can you expand on that? Did you run the same generator through some kind of 1000rpm adapter? Can you point me at an example of one? Did the generator output the same power because it was running at half speed on the 1000rpm?

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[BAP]

What he is talking about is using a tractor that has 1000rpm PTO and putting an adapter on it that allows a 540rpm PTO shaft to be hooked to it. You run tractor at about 1/2 speed to get the 1000rpm PTO to turn at 540 rpm. Your tractor doesn’t have 1000 rpm PTO so it is Not an option for you. We used to do that on some of our bigger tractors that only had 1000 rpm PTO to be able to run the 540 rpm manure spreaders.

 

[SDT]

Wingnut,

Can you expand on that? Did you run the same generator through some kind of 1000rpm adapter? Can you point me at an example of one? Did the generator output the same power because it was running at half speed on the 1000rpm?

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Some tractors have both 540 and 1000 RPM PTO shafts. Other tractors have selectable 540/1000 PRM PTO.

One can use 1000 RPM PTO to drive a generator designed for 540 RPM PTO operation by adjusting the engine RPM accordingly. Conceptually, this is the same as using EPTO.

SDT

 

[tinygiant]

SDT,

Thanks. I knew about the 1000rpm on some tractors. I was wondering in particular about the adapter he said he used. Haven't heard of that before. Is that some kind of external gearbox to create the 1000rpm?

*edit ... after a little searching, I'm making the assumption he has a 1000 rpm pto and he using an adapter to size it down to run the 540rpm generator. Got it!

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[SDT]

SDT,

Thanks. I knew about the 1000rpm on some tractors. I was wondering in particular about the adapter he said he used. Haven't heard of that before. Is that some kind of external gearbox to create the 1000rpm?

*edit ... after a little searching, I'm making the assumption he has a 1000 rpm pto and he using an adapter to size it down to run the 540rpm generator. Got it!

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No.

1000 RPM PTO shafts are fine spline whereas 540 RPM PTO shafts are course spline. An adapter is needed to connect a machine designed for use with a 540 RPM PTO to a tractor with a 1000 RPM PTO. No gearbox is needed. Just adjust the throttle to produce 540 RPM on the "1000 RPM PTO.

SDT

 

[North Idaho Wolfman]

My L has a 540/1000 PTO, both driving a 540 style PTO shaft (Yes it's a kubota oddity just like the three speed PTO's).
I can run my snowblower in light snow at half throttle in the 1000 PTO setting and get a good blow, but as soon as the snow get too thick it will bog the tractor right down.

It's all a matter of torque and available HP to the PTO.

After looking into this further, John deere is the only one that has tested it, so I'll have to use their info as a comparison.
Well I was a little surprised when I read the numbers, they are saying that on a tractor comparable to yours in HP specs you will still have enough available HP and torque for it to run the generator efficiently and safely.
Now for the big kicker they are saying that it would save about $20 a day in operational costs based on a normal working day, but that is with it also moving the tractor.
So lets just say for giggles that it's half of that to just to run the PTO, so $10, there are three work shift if you need it to run 24 hours so $30 in 24 hours.
In order to recoup your $800 investment it would only take 26.6 days of operation give or take, and doesn't even account for the savings in other maintenance and wear due to the lower RPM's.

So if you think your going to use it over the 26.6 days in the life of the tractor I would do it.

 

[tinygiant]

Wolfman, SDT,

Sounds like the 1000 rpm PTO would be great for this application, but so far as I know, they weren't offered on the 7060 (HD8). If I'm wrong, please let me know as I'd love to find a kit to modify the tractor. The only mention of 1000 rpm pto in my manual is a dash light.

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[Bulldog]

I like the 540E option. Wish it had been offered on my M9000.

I baled with my friends 5085E this years for a little while. It was so much quieter in the cab. I was amazed at the difference.

We also cut on another farm. It was so thick it choked his down in 540E. After switching to 540 that problem went away but it ate fuel like it was free. From what I have seen the 540E makes a huge difference if fuel consumption.

 

[lugbolt]

Most of my customers don't even use E-PTO. Most of them are using their PTO's for hay cutting, disc mowers and rotary cutters. The reduction in engine speed is done by changing the gear ratio inside the trans which also reduces the available torque to the PTO shaft. Thus you wouldn't be able to run a genset that is designed for 70 pto HP, but it would probably reduce the torque/hp at the PTO down to around 50hp area. It makes a big difference.