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Couple of 3000 questions hydraulics

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BobReeves

12-11-2005 03:39:06

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Whoever installed the loader on my 3000 used an adapter block off the tractor hydraulics and ran the low pressure return line from the valve into the filler plug in the rear end. The fittings and way it is installed into the plug are pretty Mickey Mouse.

Is running the return into the filler cap SOP for this type of installation? Hoping, there might be a better way?????

If I leave it in the filler cap I would like to get a new filler cap and clean up the installation. It"s Sunday so can"t call my NH dealer, anyone know if these filler caps (957E7010) are a commonly stocked item at most dealers????

Thanks,

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Tonybackache

12-12-2005 08:36:56

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OEM Auxiliary Hydraulics in reply to BobReeves, 12-11-2005 03:39:06

Curious to know what kind of aux hyd hookups these tractors had from factory. I put one of those plates under seat so we wouldn't be without Aux Hyds if we needed. But in my opinion a very crude set up. I wanted to keep control valve in close proximity of the 3-pt hitch controls. I fashioned it there but lever is in the way when not in use.

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BobReeves

12-13-2005 04:47:09

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Re: OEM Auxiliary Hydraulics in reply to Tonybackache, 12-12-2005 08:36:56

Tony, think your question kinda got lost in the noise. Might want to start another thread. I have never seen a stock loader set up but from what I have seen the loader is operated and plumed off a two lever valve that mounted under the seat in the same place the adaptor block is mounted. Have seen hese valves on eBay and it seems to me they would be a little inconvient concidering the location.

My loader valve is mounted to the loader frame just in front of the right side fender and it workes out well. I am planning on adding rear remotes some day but haven't came up with a good place to mount the valve. Would like to see a picture of your mount if posible. I can take a picture of my loader valve mount if you think it might help.

Bob

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Rick Kr

12-11-2005 18:46:56

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Re: Couple of 3000 questions hydraulics in reply to BobReeves, 12-11-2005 03:39:06

Bob,
I dump my return into the top of the filler, like most other mentioned.
I just used a 1 1/4 or 1 1/2" O-ring fitting. Works fine. I tapped it with 1/2"NPT then used a Tee, one for the return line, and the top for a filler. Just barely clears the sliding seat mechanism.

Rick

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RodinNS

12-11-2005 09:24:43

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Re: Couple of 3000 questions hydraulics in reply to BobReeves, 12-11-2005 03:39:06

That sounds like a fairly standard procedure to me. Although I'm not sure I follow what the problem is. Do you have to remove this return line to add oil to the hydraulic system? If so, then I would go with the pipe nipple idea, then install an appropriate pipe "T" on top of the nipple, and hook the return line into the "T" horizontally, and then get another pipe nipple and pipe cap, or alternatively, a pipe plug to close the top of the "T". This will allow you to easily add oil as needed, although it may not clean it up much...? Sometimes these things just don't look top notch.... but you gotta do what's necessary to make it work. You should also be careful of the thread in the tractor's housing. If I'm not mistaken (and I could be mistaken), this thread is BSP (British Straight Pipe), so it's somewhat different than the more common tapered NPT that will be found on most pipe bushings. I think like murn suggested, just tape it and proceed carefully, and it will be tight and leak free. HTH.

Rod

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gerard

12-11-2005 12:02:35

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Re: Couple of 3000 questions hydraulics in reply to RodinNS, 12-11-2005 09:24:43

Agree that thread in tractor is parallel, but BSP doesn"t stand for straight pipe - it stands for British Standard Pipe. They are of whitworth form, external threads are taper but internal threads can be either taper or parallel (the latter not being suitable for pressure joints).

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RodInNS

12-11-2005 18:34:00

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Re: Couple of 3000 questions hydraulics in reply to gerard, 12-11-2005 12:02:35

Learn something new every day. Thanks.

Rod

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Bob Unitt

12-11-2005 05:26:37

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Re: Couple of 3000 questions hydraulics in reply to BobReeves, 12-11-2005 03:39:06

This isn't a problem. I have two 3000's, with different external hydraulic adapters, and they both return through the filler-cap. There's no pressure involved, it's just a return flow - in fact my front-loader return isn't even properly fastened, it's just a push-fit into a hole in the filler-cap.
Sorry I can't answer the availability question, but I'm in the UK, and I assume you're the other side of the pond...

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BobReeves

12-11-2005 06:39:44

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Re: Couple of 3000 questions hydraulics in reply to Bob Unitt, 12-11-2005 05:26:37

Thanks Bob,

Kinda figured as much, couldn't see any other way to get the return back except the filler cap.

If these caps are not too hard to find, I can get a head start on drilling and taping the one off the transmission then pick up a new cap for the transmission tomorrow.

And yes I am on the other side of the pond :)

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RickB

12-11-2005 08:18:39

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Re: Couple of 3000 questions hydraulics in reply to BobReeves, 12-11-2005 06:39:44

Don't return oil into the transmission, if that is what you are thinking. That is a separate reservior from the rear axle center section.

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Bob Reeves

12-11-2005 11:14:19

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Re: Couple of 3000 questions hydraulics in reply to RickB, 12-11-2005 08:18:39

Was just going to borrow the transmission cap, (they are the same) and put a new one on the transmission.

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murn-ga

12-11-2005 07:32:14

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Re: Couple of 3000 questions hydraulics in reply to BobReeves, 12-11-2005 06:39:44

Bob, we use a simple hardware pipe bushing,1 1/4 x 1/2. The threads are not exact but you wrap teflon tape on the threads and gently tighten into housing and will not get water in housing.Add a 1/2 street ell and adapt hose to this.I'm assuming you have a power beyond hose going to this. If you have only two hoses from the valve,the Tisco HV4902 adapter plate is the way to go. I think about 60.00 bucks.

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Bob Reeves

12-11-2005 11:12:36

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Re: Couple of 3000 questions hydraulics in reply to murn-ga, 12-11-2005 07:32:14

This line comes from the "OUT" of a Cross BA valve, I believe it"s just the return for the relief valve. Power Beyond port goes back into the adaptor block. Whoever did this originally sawed the hex off the top of the cap (not square) and JB welded a fitting into a hole that was drilled too big. The right angle fitting is too large and hits the seat mount so not only do you have to disconnect a hose you have to remove the seat just to get the cap off. Pretty easy to understand why the fluid looked like it hadn"t been changed in 5 years.

Thanks for the tip on the pipe bushing, was planning on chucking the cap in my lathe, cutting a hole and threading it for 1/2 inch pipe. Like the idea of a T so I can add fluid without having to disconnect anything. Puts a whole new spin on what I might come up with.

Thanks, all...

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Bob Unitt

12-11-2005 23:51:59

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Re: Couple of 3000 questions hydraulics in reply to Bob Reeves, 12-11-2005 11:12:36

"Like the idea of a T so I can add fluid without having to disconnect anything."

Don't make it too difficult to remove the original filler cap when do a full oil-change - it takes a looong time to pour 24 litres of oil through a 1/2" hole...

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BobReeves

12-12-2005 08:04:11

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Re: Couple of 3000 questions hydraulics in reply to Bob Unitt, 12-11-2005 23:51:59

Called my local NH dealer and they do stock the cap, ($18.75 ouch) but what the heck the transmission one is pretty messed up anyway. Cutting and grinding on one that is already messed up won't hurt so much :)

Know what you are saying about filling through a 1/2 inch hole. Just a couple days ago filled the rear end using a funnel with about a 1/2 inch outlet, seemed to take forever.

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