Mid Mount PTO Pump ...

[DAP]

Could I stick one of these on my Mid Mount PTO Shaft?

Hydraulic PTO Pumps

I've got an idea ...

[DANGER]

 

[Senrac]

My experience has been that the Kabota mid-mount and belly mount PTO's do not have enough room to mount a PTO Pump. I think you'll be at least an inch short of fitting the pump on the mid-mount shaft.

 

[schmism]

i dont know if you could just slip it onto the output (remember the 21 spline vesrsion) but you could probibly build a small driveshaft and remote mount it underneath some how.

 

[john_bud]

I think "schmism" has it right. You would need a double u-joint drive to offset it, but it can be done. It will hang down quite a bit and take up a lot of the available ground clearance. Just something to think about.

Might be better to get one with an electric clutch that mounts onto the front of the engine like an A/C compressor. Don't know if there is any more room for that or not, but it wouldn't be a ground contact worry. They are more $$, due to the clutch.

jb

 

[zzvyb6]

My Deere 1070 also has a mid-pto and I have been toying with the idea or running my mid-mower off of it using hydraulics when I move the mower to the front end loader frame. I need an offset mower to run under the trees and along fence lines, etc. I have an extra shaft for the mid-pto to mower. I was looking at Grainger, Surplus Hydraulics, etc. to get an idea of how much it would cost to convert over to hydraulic drive. The problem I'm trying to solve is the hard time I have hooking the mid-mower up and taking it off. I can't leave it on for most of the haying work I do, but the 72" mower is a great unit. I'm trying to figure out how much power the pump and motor out to be (currently figuring about 25-30 hp with a pressure relief valve). The mid-pto runs at about 2100 rpm at rated engine rpm. I only yet need to decide whether to run the hyd. motor to the mower's shaft driven gearbox or replace the gearbox/ drive pully with a hydraulic equivalent to be more efficient. The ratio of pump to motor displacements is a consideration here. Sure would be nice setup for sharpening the mower blades, too.

Any help or suggestions that come from the Forum will be greatly useful to both of us. There are probably some other good attachments that would make great add-ons to this system, too (like a hole digger and a mid_pto generator..)

 

[kennyd]

One major problem to overcome will be the RPM of the mid-PTO. These pumps are rated for either 540 or 1000 RPM, not the 2100 RPM's or so most mid-PTO's operate at.

 

[srjones]

Since I'll most likely never purchase a MMM or snowblower, I've thought it seems like a bit of a waste having it there...unused.

But you got me thinking...maybe an air compressor or pressure washer might work. I like the mid PTO generator idea too.

I'm wondering...what's the advantage of putting a hydraulic pump there? don't you already hydraulics on the tractor?

 

[Farmerford]

DAP:

I mounted a Bush Hog Squealer 48" light duty rotary mower on the FEL of a Kubota L4330. It is driven by a Charr-Lynn hydraulic motor that is in turn driven by a Prince 11GPM PTO pump mounted at the rear 540 rpm PTO. The motor, pump, relief valve, check valves, and some hydraulic fittings came from Surplus Center. The rest came from either McMaster Carr or Northern Hydrualics.

I use it to clear light brush (trees up to about 2" diameter), mow ditch and pond banks, and mow close to trees and fences.

I will be at the "farm" this weekend and try to get some pictures. I will also find my calculations and share them with you, as well as the many things I learned the hard way during the project.

 

[DAP]

DAP:

I mounted a Bush Hog Squealer 48" light duty rotary mower on the FEL of a Kubota L4330. It is driven by a Charr-Lynn hydraulic motor that is in turn driven by a Prince 11GPM PTO pump mounted at the rear 540 rpm PTO. The motor, pump, relief valve, check valves, and some hydraulic fittings came from Surplus Center. The rest came from either McMaster Carr or Northern Hydrualics.

I use it to clear light brush (trees up to about 2" diameter), mow ditch and pond banks, and mow close to trees and fences.

I will be at the "farm" this weekend and try to get some pictures. I will also find my calculations and share them with you, as well as the many things I learned the hard way during the project.

Cant wait to see 'em. Gotts besumpin rlse to do with that shaft!

 

[schmism]

ya i noted in another tread about mounting a pto gen to the mid pto.

id stick to a smaller 5K unit that i could run at significnatly less tractor rpm as the mid pto spins faster....

i figured id work something up to hang off the chin weight bumper on the front and a driveshaft...

 

[srjones]

id stick to a smaller 5K unit that i could run at significnatly less tractor rpm as the mid pto spins faster....
.

That's exactly what I was thinking. Actually around 2-3Kw. Basically a mobile power source to run most powertools. The mechanical advantage I'm hoping for is that if the mid PTO runs at 1800 RPM (while the engine is running at lower RPM) then it's a direct coupline from the pto to the gen head. No gears, belts or pulleys.

 

[Wesbo]

I'm not sure about your tractor, but my mid-pto won't run without an operator (or a bag of feed) in the operator's seat. Safety and all that...

 

[schmism]

I'm not sure about your tractor, but my mid-pto won't run without an operator (or a bag of feed) in the operator's seat. Safety and all that...

depends on tractor.... my 2001 TC33 came from the factory with no seat interupt. meaning i can get off or stand up with the mower deck/pto on.

 

[schmism]

That's exactly what I was thinking. Actually around 2-3Kw. Basically a mobile power source to run most powertools. The mechanical advantage I'm hoping for is that if the mid PTO runs at 1800 RPM (while the engine is running at lower RPM) then it's a direct coupline from the pto to the gen head. No gears, belts or pulleys.

that wont cut it... as a gen head will need ~3600 rpm for 60hz output. (technically a gen head can be built diffrent but i think its rare) even a 1800rpm genny uses a doubler i think.... even if they dont youll need a gen head built for an 1800 rpm motor... and those are likely to be expensive rare beasts....

but a 2:1 90deg gear box is easy to come by. and a 2-3K gen head should be small enough that you could mount it transverse underneath...

 

[DAP]

I'm not sure about your tractor, but my mid-pto won't run without an operator (or a bag of feed) in the operator's seat. Safety and all that...

Wesbo ... I bet if you engage the PTO .. get off of the seat and then fold the seat forward, you will not lose the PTO .... Thats how the Kubotas function anyway ...

It is a safety feature, but the design DOES allow for PTO operation when the seat is empty. Certain PTO implements would make no sense if the seat needed to be occupied ... like a PTO generator, or a Log Splitter with a PTO pump, etc.

 

[srjones]

that wont cut it... as a gen head will need ~3600 rpm for 60hz output. (technically a gen head can be built diffrent but i think its rare) even a 1800rpm genny uses a doubler i think.... even if they dont youll need a gen head built for an 1800 rpm motor... and those are likely to be expensive rare beasts....

but a 2:1 90deg gear box is easy to come by. and a 2-3K gen head should be small enough that you could mount it transverse underneath...

I have to respectfully disagree with you. 1800 RPM generator heads are far from rare. If you search for the following terms "generator 1800 RPM" you're going to find quite a few entries. Look specifically at the "ST generator head" I'm really no expert, but I think it's because these generators have 4 poles, and the 3600 RPM ones have 2 poles.

But you make a very good point. I'm more likely to find the size I want from a burned out portable generator. The 1800 RPM generators are much bigger and heavier and probably wouldn't even fit

 

[Artisan]

Did any of you guys ever come up w/ "anything" utilizing the MMM PTO
shaft, be it a generator, pump, or blender. Seriously though, what
a waste, I need to find a way to utilize that thing...

 

[radioman]

Did any of you guys ever come up w/ "anything" utilizing the MMM PTO
shaft, be it a generator, pump, or blender. Seriously though, what
a waste, I need to find a way to utilize that thing...

install MMM :laughing:. oh you were serious:ashamed:? ok - not sure if you can find a light load implement that requires 2000 rpms or higher pto off that mid mount pto.

 

[Artisan]

I am thinking by way of hanging a pump under there and using the pump to
power perhaps an auger, not looking for 2500RPM sickle bar ! :laughing: Heck
a generator, an air compressor would be cool too! It's a big nothing
for me, I want to start looking for a way to work it.

 

[aczlan]

I am thinking by way of hanging a pump under there and using the pump to
power perhaps an auger, not looking for 2500RPM sickle bar ! :laughing: Heck
a generator, an air compressor would be cool too! It's a big nothing
for me, I want to start looking for a way to work it.

There was someone who had a Kubota GR2000 with a 24v alternator that he used to run his cab heater. http://www.tractorbynet.com/forums/kubota-owning-operating/161314-smallest-4-wheel-drive-bota-3.html

Aaron Z