Mid PTO hydraulic pump 2000rpm question: Tractor Implements  -- Tractor Attachments Implements 3ph Discussion Forum and Review Mid PTO hydraulic pump 2000rpm question: Tractor Implements -- Tractor Attachments Implements 3ph Discussion Forum

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 03-24-2010, 17:14 Post: 169480
8NBoom



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 Mid PTO hydraulic pump 2000rpm question

I couldn't find a better place to ask this so I picked Tractor Implements.
I recently bought a 8N boomer and it has a mid pto. I have no use for it and no plans for a mower. I have a bucket so likely wont put a snow blower on the front either. I was thinking how I'd like more hydraulic power though and wondered if I could put a PTO pump on there so that my back pto is left free. Does anyone know if this can be done or has been done? Any pros/cons? I'm thinking if I could get enough volume I'd put a hydraulic snowblower on the bucket mounts since I already have one for bobcat.






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 03-24-2010, 20:37 Post: 169487
hardwood

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 Mid PTO hydraulic pump 2000rpm question

8NBoom;
I'm far from an expert on hydraulics but I have home built quite a few hydraulic drives for farm augers, etc. I have a 4310 Deere with the mid PTO and have a pump, universal shaft, the bracket pieces cut to hold the pump etc. My goal is to operate a side mount small rotary mower to trim road ditch banks with while keeping the tractor on the level.
I got my pump from the Surplus Center, they have a website and catalogs, plus some very helpfull people to walk you thru what you're wanting to do. The catalog shows the pump displacement per revolution to help you get a rough flow rate by taking the displacement times the RPM. Some pumps work in one rotation directon only. Some will work either way, you need to know that too. You'll need a bypass relief valve somewhere on the pressure side of the pump and a resorvor for the fluid. By using the blower in the winter you may get by without a radiator to cool the fluid.
The guys that are better at this than me can tell you the hose and line sizes that have the least flow restriction, pressure loss and all the more technical stuff, I pretty much did this by what looked right then added 20% to everything and most always it worked out. Frank.






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 03-25-2010, 05:06 Post: 169492
earthwrks

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 Mid PTO hydraulic pump 2000rpm question

An 8N boomer? Never heard of such a thing. My New Holland is a Boomer though.

Why not get a PTO extension shaft and install another PTO pump of the size you need? That way you can run two pumps in tandem--not a good idea though because the first one needas to be lubricated while running.






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 03-25-2010, 07:13 Post: 169494
kthompson

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 Mid PTO hydraulic pump 2000rpm question

Jeff, brain freeze on the 8N boomer? Have you not seen the retro? Not sure they have any on the local NH lot now but they are neat looking.

Frank, there are many many side mount hdy cutters built by a local company (Hardee, some Bush Hog's) designed for the 3 pth hitch with fully self contained hyd system driven off the rear pto that have NO hyd cooling built in other than the hyd tank not being enclosed. Those are mostly used by farmers for cutting ditch or pond banks and are mostly used in none farming time meaning fall and late winter. If they don't have a heat problem doubt you would either. At same time it amazes me how enclosed the hyd tank on an excavator is but guess all run a hyd radiator.






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 03-25-2010, 12:35 Post: 169499
hardwood

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 Mid PTO hydraulic pump 2000rpm question

KT;
I wasn't aware that anyone built a side mount for compacts, the county uses them on full size tractore, but I never paid any attention to the brand. I really don't absolutely even need one but just wanted the challenge of building one myself. The plan was to use a light weight four ft. rotary cutter mounted more on the side rather than the three pt.
It's just another one of the dozen or so things that I have all the parts to build it but just haven't gotten around to it yet. By the time I get it built weeds may be a thing of the past by some genetic altering thing or sometning.






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 03-25-2010, 12:53 Post: 169500
8NBoom



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 Mid PTO hydraulic pump 2000rpm question

Thanks guys. I am reading your responses so I thought I better let you know. I don't know what else this mid pto would be good for since I already have a 72" zero turn mower and the bucket on the front.






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 03-25-2010, 16:05 Post: 169504
Murf

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 Mid PTO hydraulic pump 2000rpm question

Before you go too far down that road you better check your machines PTO's out.

It's my understanding that regardless of what the PTO setting is put to, if the PTO is engaged, both shafts are turning.

If that's the case, then no matter what you used the rear PTO for, you would be running the hydraulic pump.

It sounds to me a much easier, and less spendy, solution to just hang a Prince PTO hydraulic pump from TSC, Princess Auto or wherever off the 3pth and be done with it. Especially since you won't be able to use the 3pth for anything else anyways, you will need it to carry the reservoir and such.

Best of luck.






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 03-25-2010, 18:30 Post: 169507
8NBoom



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 Mid PTO hydraulic pump 2000rpm question

You might be right Murf. One downside to the mid pto is it shuts off every time you get off the seat. I'll probably just get a 3point blower but thought it would be cool to actually have a use for that mid pto.






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 03-25-2010, 20:37 Post: 169509
hardwood

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 Mid PTO hydraulic pump 2000rpm question

Murf;
I don't know how the orange or blue works but on my green one the rear PTO can run without the mid one turning, but the rear one must turn to have the mid one going, so the mid pump can be at rest anytime regardless of the rear shaft use.
You want to take all the challenge out of things by buying an off the shelf thing, has your do it your self thing gone astray?
Another question, are all compact tractor mid PTO's the same size and speed???






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 03-25-2010, 21:15 Post: 169510
8NBoom



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 Mid PTO hydraulic pump 2000rpm question

Hardwood, I can answer your question.
The Rear PTO on my tractor is 1-3/8" shaft 40HP 540 RPM
The Mid PTO on my tractor is 1" shaft 36HP 2000 RPM both at relatively same engine speed.







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Discussion Boards > Active Subjects > Messages as Posted > Tractor Implements Forum

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8NBoom 6 | earthwrks 2 | hardwood 7 | kthompson 2 | Murf 2 |




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