MF 204 loader needs hydraulic hose repair

1963 MF 204 with bucket loader has blown hydraulic hose. No one in my area has the fitting to repair it. The connector is a 90 degree 1/2 inch tube with an o ring. Anyone know where to get this fitting?
On a complete hose?
 
I think what you have is a 7/8x14 ORB fitting which is a straight fitting that seals with the o-ring instead of a tapered pipe thread. A
fitting should be readily available at any hydraulic shop. you can also buy an adapter to go from 7/8 ORB TO 1/2 NPT ON FLEA BAY.
 
Here is some pictures of what the fitting looks like. Anyone know where I can get this or what it is called?
mvphoto42430.jpg
 

Here is a picture of a fitting that maybe could work in place of the other one. It looks like a pipe thread with a 90 degree connection. Anyone know what this is called?
mvphoto42434.jpg
 
The 90 degree adapters between your hose and the valve body are 90 degree NPT adapters, male NPT pipe with a female NPT swivel. The hose end appears to be male NPT. You would need to determine the actual size. They look like they might be 3/8" or 1/2" NPT.

Where does this hose go? The end in your first photo looks like one I would expect to see on power steering, or a transmission cooling line. Is that an actual O-ring (does not look like it to me)? It looks like the tube was formed to make that shape for sealing. If that is the case you may need to go to MF for it or find a hydraulic shop that can put that end on a hose fitting. Just my thoughts.
 

Where does this hose go? The 90 degree O-ring end attaches to what/where? And the other end goes to what/where? The hose may be in the parts book but knowing which one and where it is are required to look for it. Photos of where it came from?
 
The end of the hose with the 90 degree tube with the o ring goes to the loader control unit like the second picture but with this connector. The other end goes to a steel tube running along the lift arms to the cylinders. I have parts book for the tractor but it does not show any parts for the loader attachment or hoses.
 
If that is the type fitting on both ends of the hose the adapters will not work, you need those ends.

If the loader is a Massey Ferguson the model 99 and model 102 were common on those I believe.
 
An early 99 has a hose, going between the valve and bucket cylinder steel tubes on the loader frame, that looks like it might be similar to what you have. Part number 705109M91. You would need to check it out with a Massey Ferguson/AGCO dealer as far as what it has for ends, diameter and length.
 
Thanks Jim.ME
I Found online a MF 200 loader parts list and retrieved a part number (705 441 M91) for the hydraulic hose I need. Called a MF dealer near me and they are looking to see if there are any in stock. If that does not work out I think I will take a swivel female connector and braze it to the tube section that goes into the control
unit.
mvphoto42438.jpg
 
I would braze a straight hydraulic pipe coupling to the old end, then you can have a hose with a pipe fitting end on it to screw into the side of the coupling you didn't braze to. What ever you use get real steel hydraulic components. I hate to see hardware store fittings on the pressure side of hydraulic systems. Most are only rated for 150 psi working pressure. They are an accident waiting to happen at 1000 psi plus. Yes some hold, but I have seen some split as well.

Some hydraulic shops have hose fitting stems that ends like yours can be brazed/welded to, then are assembled by attaching to the hose with a crimp ferrule. Below is a sample from a Gates catalog in the Power Crimp section. Different suppliers may have similar depending on the hose brand/system used.

mvphoto42496.jpg
 

I ordered mine from SURPLUS CENTER

Control valve hoses and fittings with part numbers

Control valve to loader Hydraulic hose
941-2224, 1/2" X 24" JIC 10F X JIC 10F 4000 PSI HYD HOSE $ 14.95ea

Control valve to hose need this Swivel and Elbow
9-6402-10-10, SAE 10M x JIC 10F SWIVEL $ 3.40 ea
9-2500-10-10, JIC 10M x JIC 10M 90 ELBOW $ 3.45 ea

Hydraulic hose to metal pipe on loader frame need this Union
9-2403-10-10, JIC 10M x JIC 10M UNION $ 2.45 ea

Hope you find this helpful.
.
mvphoto42512.jpg


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mvphoto42514.jpg


mvphoto42515.jpg
 
Mine's a model 200 loader. Needed the same
hose. Thompk
ins Industries in Des Moines built me one
10 years ago after ordering the fittings
from who knows where.
 

I am glad that male O-ring boss adapter worked for you. However it should be noted the sealing point of it is completely different from the original. The valve body does not have the proper sealing surface for the O-ring. There is supposed to be a specific smooth chamfer area, above any threads, for the O-ring of the male boss fitting to seat in that I believe is not there on your valve body, where the hole is tapped for the original fitting which seals at the O-ring down inside the valve body. How well this works out on a given hole is subject to the condition of the top area of each hole. Again glad it is working for you.
 

Thanks for all the great help. I just ordered an exact replacement hose from an MF dealer part number 705441M91. Wish I had seen this post earlier, would have saved me a lot of money.
 

Yes it cost more than a patch, but you made the correct and proper repair. Less risk of a leak or failure than changing the designed sealing point.

Save your old hose for a time. You can now look around for or order a braze type stem to put the old end on to, or to check with hydraulic shops (or to search the web) to find proper fitting so you will have a spare end fitting ready for the future. I would try to find something local so the fitting would match the suppliers hose making equipment.
 
This fitting is freely available if I am correct below.

I suspect it is the Parker Tube-O part # 25M21-10-10

I believe this is the same fitting as the MF100 Loader. That parts manual lists a special fitting which I have tracked down. It is called Tube-O Swivel. Specifically, it seems the fitting designation or brand is Tube-O in hydraulic parlance. The particular fitting name within Tube-O is Swivel. The reason I'm making this distinction is the parts book concatenates the whole thing like Tube-O-Swivel.

Now, the manual states the ends down at the lift arms can have two different fittings. One is the Tube-O, and the other appears to be ORB O-Ring Boss. While it does not state an alternate for the spool fittings, I believe them to be Tube-O and that ORB will work... due to the fact I bought an MF35 Utility with a 100 loader with two ORB to JIC 10 elbows on the spool end and they work fine. But if you can get the original fittings online, skip the adapter. But, I also think it's a valid point to convert those four spool ports to female JIC and buy pre-made off-the-shelf lengths of male-male JIC. You have to do something about part #6... but don't remove the restrictor plate under the stock adapter.

https://drive.google.com/file/d/1BC8HKksDhG7i92S8UmTiUepGK9zmSzij/view?usp=sharing

This post was edited by 62MF35Utility on 12/19/2021 at 06:21 pm.
 

Thanks a ton!

I followed your part numbers and did the same thing, with one exception. I used a 90 degree ORB to JIC right off the spool... male-male. It fits fine and even clears the other ports to spin them on.

For some reason I still couldn't let the old fitting go without being identified. And I found it. It goes by a couple different names. MF called it "TUBE-O-SWIVEL". Eaton calls it a "Bumped Tube O-Ring Male Swivel" 75710E-Z70. Parker calls it a "Tube-O - Swivel blah blah with long pilot." I couldn't find a steel version of it with Parker... but I do believe they have one. Gates has a steel one in their PolarSeal line and I saw hydraulics shops selling them for hydraulics G45585-1010S. But I could not locate a spec sheet. You may want to look for one or ask around.

Eaton specifies the part for hydraulics use and warranties it for hydraulics use. So... that is where I would go. Before I located the Eaton part, my local (and impressive) hydraulics shop said they couldn't source it but would just reuse the old one on a new hose. And the guy who said that acted like he'd done it a hunnert-n-fourteen million times.

Some of this is in my other reply. I am on the fence as to old vs new. And I GET the fact that the original female port is not made for ORB. But, it works and it fits the threads 100%. I am not a hardware engineer. But imo the worst case scenario is blow-by or failure of a portion of the o-ring under load. Given the threads are going to stop a catastrophic blowout, I see no difference in the ORB vs the Tube-O in a failure scenario. Both have o-rings and would leak. And the original would have more of an opportunity to leak as a spray. All that said, I do not disagree with the poster who reminds us that the original is what it was designed for.

Now I have to figure out WHY Massey Ferguson apparently used parallel SAE threads on the MF100 loader and NPT(F?) on the MF185 backhoe. Yep. The ports in the bh cylinders have NPT sticking in them. If anyone knows for a fact that the back uses NPT, please let me know. This 185 has at least one full hose change on it (but not the engine ignition wires, which actually look like 1962, wtf???) and I can see someone using NPT if it would thread... and it actually might in the -8 size, or so I read as a possible. Anyone who knows the finer details on thread differences in the tapered v other, please hit me up.
 

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