Shut off valve piece missing on Yanmar 3 point hitch

   / Shut off valve piece missing on Yanmar 3 point hitch #1  

HorseCamper

New member
Joined
Jun 26, 2022
Messages
4
Tractor
Yanmar 1720D
Greetings!
The three point hitch on my Yanmar 1720D has never worked right. I've finally decided I need to solve the problem because I have a bunch of posts I need to put in. It goes up okay, particularly when it's cold and before I pick up the loader. It even comes down most of the time in those conditions. But as soon as I pick up the loader and/or it gets warmed up, it won't come down on command. Eventually, it will seep down, but in a very unpredictable way. So I went through all the diagnostics on the Hoye Tractor website (excellent resource!), and got down to the "Up but won't come down" section. It starts with the shutoff valve. As soon as I removed that, the arms came down, no pressure necessary. However, according to the website, there was supposed to be a little loose piece inside at the bottom in the recess, part of the valve from what I understand, that was supposed to pop out when I took that off. There was nothing in there. There was no shooting oil, so no blockage apparently, but that little piece is missing. I'm suspecting that the dealer that did the original U.S. service on it lost it and never replaced it, since I've always had this problem. Would that missing piece be the most likely culprit? The next step is the whole control valve, and I really don't think there's anything wrong with that. Any help would be appreciated! Thanks!
 
   / Shut off valve piece missing on Yanmar 3 point hitch #2  
Oh you have a Gary Market tractor. Best to ask this in the Yanmar sub-forum because those parts are so unique to the that era and model.

And we have the free YM1720(D) manual over at the, Yanmar Tractor Owners Group. Small link below in my signature.
 
   / Shut off valve piece missing on Yanmar 3 point hitch
  • Thread Starter
#3  
Oh you have a Gary Market tractor. Best to ask this in the Yanmar sub-forum because those parts are so unique to the that era and model.

And we have the free YM1720(D) manual over at the, Yanmar Tractor Owners Group. Small link below in my signature.
Thanks so much! I'll repost it there. Cheers!
 

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