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bleeds orange 
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Joined: 11 Sep 2012
Location: mt. vision, ny
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 Topic: D15 series 1 adding hydraulic outlet
Posted: 29 Dec 2019 at 9:41am |
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I have a 1961 d15 series 1 it has the one original outlet on it now. But would like to add one more outlet for a return so that I can run a gravity wagon with an auger on it.
Thanks cory
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bleeds orange
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Posted: 29 Dec 2019 at 9:42am |
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Has anyone done this ? And what parts would I need?
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jaybmiller
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Posted: 29 Dec 2019 at 10:37am |
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If it's the same as my D-14s, there's a flush plug on the left side of the hydraulic portion of the cast, you unscrew that and plumb in 3/8" fitting for a 'return' line.
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
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bleeds orange
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Posted: 29 Dec 2019 at 11:00am |
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Ok. Where is this flush portion of the hydraulic cast? Hydraulic cast? Don't mean to sound dumb.
Thanks cory
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bleeds orange
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Posted: 29 Dec 2019 at 11:03am |
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Is it the Allen head plug left side of tractor by clutch pedal?
Just near where the return line is now for the one hydraulic outlet?
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jaybmiller
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Posted: 29 Dec 2019 at 11:23am |
yup, that should be it. I don't have a return line, just the steel pressure going from valve to the 'rockshaft'. I know th ePO had 'something' he needed a return line for.
also that's high pressure (3200#) to be sure whatever hydraulic motor or cylinder you're powering is GOOD for that pressure !!
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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DrAllis
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Posted: 29 Dec 2019 at 12:00pm |
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Any orbit motor I have been around (for running a wagon auger) is rated for 2,500 psi. As long as you never "stalled" the motor, you would never see the 3,000 to 3,400 psi the tractor pump is capable of producing. I think you'll be fine. If concerned, the simplest cure would be to install a small 2,500 psi relief valve between your supply hose and the return hose. It would be part of the auger/motor assembly.
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CTuckerNWIL
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Posted: 29 Dec 2019 at 12:08pm |
 bleeds orange wrote:
I have a 1961 d15 series 1 it has the one original outlet on it now. But would like to add one more outlet for a return so that I can run a gravity wagon with an auger on it.
Thanks cory |
Maybe you could give a little more information here. Why do you need a return line? Are you trying to run an orbit motor with the tractor hydraulics?
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PaulB
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Location: Rocky Ridge Md
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Posted: 29 Dec 2019 at 12:14pm |
I have the OEM hard line that was used for the return when a transport or auxiliary valve was installed on a D14/15.
The biggest concern of running a orbit motor with the Hi-Pressure-Low-Volume system on an Allis Chalmers after the possibility of over pressuring it, would be how painfully slow it would be at only about 5 GPM. A Wagner PTO pump would be just the ticket.
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If it was fun to pull in LOW gear, I could have a John Deere.
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baverwolf
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Posted: 29 Dec 2019 at 12:24pm |
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I'm not sure if the series I D15 hydraulics are any different than a D14s, but I've tried running an orbit motor on a small bin sweep with my D14. It worked but was really slow and it overheated the hydraulic oil in no time. I think you'd be better off with a pto pump.
Just my 2 cents...
Ben
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CTuckerNWIL
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Posted: 29 Dec 2019 at 12:31pm |
baverwolf wrote:
I'm not sure if the series I D15 hydraulics are any different than a D14s, but I've tried running an orbit motor on a small bin sweep with my D14. It worked but was really slow and it overheated the hydraulic oil in no time. I think you'd be better off with a pto pump.
Just my 2 cents...
Ben |
That's exactly what will happen with the D15. Might as well put a hand crank on the auger 
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john(MI)
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Posted: 29 Dec 2019 at 12:55pm |
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I added another outlet to the rear of my D14. I use it to run a Long, 3 point backhoe. I have not had an issue with the high pressure blowing anything apart, nor have I experienced any problems with sluggish movement. It works just like it was designed to work. It has a pto pump and a reservoir in the frame on the hoe, but it would have taken a lot of money and time to get them working again. I'm glad I listened to my non AC friends that told me to run it off of the tractor.
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D14, D17, 5020, 612H, CASE 446
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bleeds orange
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Posted: 29 Dec 2019 at 1:30pm |
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Ok thanks.
Not doing much for Hydraulics with it,just want to be able to top off fertilizer hoppers on planter with the kilbros with the auger .
Thanks cory
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Adam Stratton
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Posted: 29 Dec 2019 at 8:43pm |
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Once in a desperate pinch i tried to run our 6" hydraulic drill fill auger with my d15 series 2 by just taking the return coupler off and sticking the hose in the fill tube. It barely turned the auger. Had to give up and just wasted more time trying.
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