Davis loader

I have a loader that the tag says it is model number 78580 and the tag also has Midwestern industries manufactured and Davis products on the tag as well. I need a control valve for that model and type. I will post some pics of the tag and the loader. I cant seem to find anything at all about this loader or even pictures of it on the Internet at all. If anybody can give me any insight or help on this loader I will be eternally grateful. Thanks in advance

I dont know if you tried web searching by the numbers off the tag, I did not. I did search the numbers cast in the valve c414. That yielded the item in the first link. There is also a surplus company in Lincoln, NE ..Surplus Center.. the second link shows the search for valves in inventory if the link works properly. About half way down I see items 9-6702-F (drop F for a non-float valve) 9-7875-F. I did not check port sizes etc. to see how well they matched. If you go through them I would probably just call them and see what they recommend is the best replacement for your application.
C414 search

Surplus Center hyd. valves

Thank you for that reply used red MN. What concerns me in after market valve is that that valve is actually part of the loader frame. The side of the valve is specifically made to attach to the frame as the return line. Im pretty sure that it would have to be that exact valve and finding one seems to be impossible.

(quoted from post at 22:12:11 11/01/21) Thank you for that reply used red MN. What concerns me in after market valve is that that valve is actually part of the loader frame. The side of the valve is specifically made to attach to the frame as the return line. Im pretty sure that it would have to be that exact valve and finding one seems to be impossible.

Click to expand...

The common method is to build a mount for the new valve and a blanking plate for the hole in the loader frame, with return port to connect the return from the new valve to. The two can be combined. Finding a used valve like yours is the only other option and it may not be any better than the one you have. I don't know of any new ones like yours being produced, and many people have tried to find those.

Thanks Jim.ME, that does give me a plan B if I cant get mine
fixed. The bottom plate, which has the pressure adjustment, is
what broke in two. Welding it is my next option which I think
will fix the main problem. The only other thing that is wrong is
the dust covers at the top of the spools. I hope that part wont
be too big of an issue to find. Everything else looks really
good inside and the spools are not worn too bad.

(quoted from post at 22:55:07 11/01/21) Thanks Jim.ME, that does give me a plan B if I cant get mine
fixed. The bottom plate, which has the pressure adjustment, is
what broke in two. Welding it is my next option which I think
will fix the main problem. The only other thing that is wrong is
the dust covers at the top of the spools. I hope that part wont
be too big of an issue to find. Everything else looks really
good inside and the spools are not worn too bad.
<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto106683.jpg>

<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto106684.jpg>

<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto106685.jpg>

Click to expand...

I don't know that there were any dust covers at the top of the spools back then. Any of the ones I've seen only had a wiper seal in the body at the top of the spool. A good machine shop might be able to duplicate the plate in steel, if welding doesn't work out for you. Of course the cost might equal or exceed a new valve arrangement.

A bit of abbreviated history for you, may not be exact but gives you an idea of the history of your tag. Davis Manufacturing bought Mid-Western Industries loader/backhoe business in 1950 and developed/improved on the loaders and backhoes. In 1958 Davis/Mid-Western were acquired by Massey Ferguson. Mr. Davis reappeared improving on trenchers which later was acquired by Tenneco/Case. There are some Davis loader manuals in the N tractor club (google it, link to it is not allowed here) library in the loader section you can look at. The valve is similar if not the same as yours.

Thanks Jim.ME, that actually helps alot cause the guy I
bought it off of said that the tractor was a 1957 Massey Harris
44 but the frame has MHF stamped on it. It actually looks like
a Work Bull tractor 404, I believe. But thats an investigation
for another day. Lol. I just need to get the loader going and
definitely will look into all that you said. Thank you!

I think your assessment of being impossible to find is pretty spot on. You're talking about a special made part from 70 years ago on something that's not terribly common. Industrial equipment production tends to be a fraction of farm tractor production.

There are ways to get around the problem of the return. Most obvious would be a block off plate for where the original valve hangs with a bung welded in it to accept the return hose from a generic valve. Use a thick enough plate and you can just drill and thread the fitting directly into the plate.

Thanks. Ill take all the solutions I can get.

(quoted from post at 09:52:17 11/02/21)

There are ways to get around the problem of the return. Most obvious would be a block off plate for where the original valve hangs with a bung welded in it to accept the return hose from a generic valve. Use a thick enough plate and you can just drill and thread the fitting directly into the plate.

Click to expand...

That's exactly what I plan to do with mine. Plus move the new valve to the right side, I find it awkward to use on the left side.





This post was edited by Carlmac 369 on 11/02/2021 at 07:29 am.

(quoted from post at 07:26:52 11/02/21)

(quoted from post at 09:52:17 11/02/21)

There are ways to get around the problem of the return. Most obvious would be a block off plate for where the original valve hangs with a bung welded in it to accept the return hose from a generic valve. Use a thick enough plate and you can just drill and thread the fitting directly into the plate.

Click to expand...

That's exactly what I plan to do with mine. Plus move the new valve to the right side, I find it awkward to use on the left side.

Click to expand...

Ha, I only wish the loader controls were on the left side

BTW, they also make "bulkhead" fittings for the return cover plate. So you don't even need a tap to cut threads, just a drill and bits to make holes.