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Ford 9N, 2N & 8N Discussion Forum

Extra Hyd. for wagon bed dump

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mad farmer

06-25-2007 04:11:33

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Besides the valve/plumbing how hard is it to hook up a line to run a hyd. cylinder? Where can I plumb into and how do I return flow? Will be used to lift/dump a wagon bed.

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TheOldHokie

06-25-2007 05:28:42

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Re: Extra Hyd. for wagon bed dump in reply to mad farmer, 06-25-2007 04:11:33

mad farmer said: (quoted from post at 04:11:33 06/25/07) Besides the valve/plumbing how hard is it to hook up a line to run a hyd. cylinder? Where can I plumb into and how do I return flow? Will be used to lift/dump a wagon bed.

I assume this is an N tractor. Sounds like a single acting cylinder application. Pretty simple to hookup. The test port on the N's can be used to run a remote cylinder by chaining or otherwise restraining the lift arms to prevent them from lifting when the 3pt control is raised to turn on the pump. So the 3pt lift will not work when the remote valve is being used. The test port is a 1/2-20 UNF thread. I use a SAE-6 ORB style fitting to make the connection which is a bit hard to find. I have a few on hand - I'd be happy to send you one if you can't find one locally. I think they cost me about $5.25

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I've also been working on a copy of the dump valve setup that "back in the day" was used for this exact application. It mounts under the quadrant and allows you to use the 3pt lever to operate your SA cylinder. Raising the 3pt lever extends the remote cylinder. When you lower the lever it depresses the plunger in the valve and allows the fluid to return to the sump. I have an adapter that replaces the tranny fill plug and provides a hookup for the return line. I just finished making a prototype but it has not been tested. I'm going by the Parker store this eveneing to get the plumbing to finish hooking it up and giving it a test. The original valves are around - may be able to find one at a boneyard. If not and this valve tests out give me a holler. The prototype is sold (assuming it works) but I can make another.

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TOH

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TheOldHokie

06-25-2007 19:05:35

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Pics of sump adapter in reply to TheOldHokie, 06-25-2007 05:28:42

Well I picked up the wrong gender fitting at the Parker store so I wasn't able to pressure test the valve but heres some pics of the sump adapter.

The bigger hex portion is just a bushing to replace the OEM plug. The smaller hex portion is a swivel that's a slip fit in the bushing and is retained with a snap ring.

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Here they are assembled

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And finally installed on the tractor. The hose connection can be turned to any angle desired and the bushing can be unscrewed from the tranny to add fluid without disconnecting the hose.

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fordmodelb

08-01-2007 08:47:25

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Re: Pics of sump adapter in reply to TheOldHokie, 06-25-2007 19:05:35

TOH,

I take it you made the sump adapter using parts from a swivel. Do you have any extras for sale or a drawing so that I can make my own?

Thanks,

Mike
5076450041
mike.braun@myclearwave.net

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lonestarjeff

06-25-2007 17:56:14

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Re: Extra Hyd. for wagon bed dump in reply to TheOldHokie, 06-25-2007 05:28:42

Hokie...I don't understand what the plunger valve does differently from tapping the pump base. You don't have to secure the lift arms?

Nice work, BTW. I look forward to seeing it in action.

Jeff

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TheOldHokie

06-26-2007 05:12:35

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Now thats a very good question! in reply to lonestarjeff, 06-25-2007 17:56:14

lonestarjeff said: (quoted from post at 17:56:14 06/25/07) Hokie...I don't understand what the plunger valve does differently from tapping the pump base. You don't have to secure the lift arms?[/quote:a76cae3507]

You still have to restrain the arms. But frankly I never asked myself what value is added by the setup and I was challenged to formulate an answer to your simple question. And frankly I never used the original valve I copied for much of anything:

I got it as part of a FEL rig that had single acting lift cylinders. It was originally used to control the lift arms via the 3pt lever. I guess the idea is that the external valve gives more precise control over the flow than just plumbing a single closed center type circuit from the test port. The internal valving in the N has a tendency to be "all or nothing" and the control lever linkage is pretty sloppy!

The loader was actually equipped with a hydraulic bucket and came with a very nice 2 spool DA Cross valve so I simply used the old valve as a junction point for plumbing the open center of the Cross valve. I kept the 3pt lever in the fully raised position when using the loader which sent a constant supply to the Cross valve and back again through the open side of the old loader valve. So any single spool SA open center valve would probably be a better solution than the old dump valve. Mount it right under the 3pt control and you'd just have a second lever to control the remote.

IIRC you were cobbling up a dump cylinder or similar last we spoke. From your question I'm guessing you plumbed it as a closed center circuit controlled by the 3pt lever and return via the test port. If so do you have any control issues in that kind of a setup?

[quote:a76cae3507]Nice work, BTW. I look forward to seeing it in action.

Jeff

Thanks and me too! This has turned into a lot more work than I originally estimated and now you done gone and rained on my parade! third party image

But hey! I'm having fun and honing my skills third party image

TOH

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TheOldHokie

06-25-2007 06:05:04

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Re: Extra Hyd. for wagon bed dump in reply to TheOldHokie, 06-25-2007 05:28:42

Ooops - I said SAE-6 ORB - that is wrong - it's SAE-5 ORB that has the 1/2-20 thread. The adaptors I have are 90° male elbows - SAE-5 ORB to JIC-6 (9/16-18). I'll also post a pic of the tranny fill plug adaptor when I get home. I think it's a nice clean and convenient setup. But then I'm biased ;-)

TOH

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ron,ar

06-25-2007 04:17:25

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Re: Extra Hyd. for wagon bed dump in reply to mad farmer, 06-25-2007 04:11:33

I removed the plug at the corner of the hyd pump and ran my line from there to the aux control valve. I removed the top bolt from the inspection (dipstick) cover, got a longer one, drilled the center out and used that foe a return line. You can also remove the cover, drill and tap the cover for a bigger line if you wish. The threads in the pump housing are a bolt thread, not pipe thread. I am pretty sure they are 1/2/X10. I bought the fitting at Napa, works good.

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