1610D hydrualic fluid in engine oil

Post your questions or problems you are haviing with your Yanmar tractor here.

Moderator: Aaron

kenr74
Volunteer Poster
Posts: 16
Joined: Sun Apr 16, 2017 12:31 pm

Re: 1610D hydrualic fluid in engine oil

Postby kenr74 » Mon Apr 16, 2018 4:38 pm

Yes, it is wide open.

I did the three point valve test by closing it fully. If the valve is closed the three point holds in place. Once I open it the three point will slowly lower.

Sounds like I need to rebuild that valve if I am reading this correctly. https://www.hoyetractor.com/brokenlift.htm

Would holding the lever in the up position cause the pump to blow the seal and leak into the engine oil?

winston
Volunteer Poster
Posts: 4501
Joined: Mon Feb 01, 2010 7:29 am
Location: North East Texas

Re: 1610D hydrualic fluid in engine oil

Postby winston » Mon Apr 16, 2018 5:12 pm

It could if your feedback rod is out of adjustment. Adjusted correctly the lift should just go to maximum height and the control valve would then stop raising it. Is your engine loading up when you hold the lever in the up position? If so, the feedback rod is out of adjustment.

kenr74
Volunteer Poster
Posts: 16
Joined: Sun Apr 16, 2017 12:31 pm

Re: 1610D hydrualic fluid in engine oil

Postby kenr74 » Mon Apr 16, 2018 6:23 pm

If I run it at 1500rpm and lift the 3pt it will only go up about half way. If I go full throttle it will lift it all the way. As soon as I let off the throttle though it bogs and the 3pt starts to drop even though I still have the lever all the way in the lift position.

Can you give me an idea of what the feedback rod looks like and how to adjust it?

winston
Volunteer Poster
Posts: 4501
Joined: Mon Feb 01, 2010 7:29 am
Location: North East Texas

Re: 1610D hydrualic fluid in engine oil

Postby winston » Tue Apr 17, 2018 3:58 am

You have some strange symptoms. I am assuming all things are happening with at least a partial load on the 3 point. How much weight are you lifting? You stated earlier with the lockout valve closed the 3 point would not drift down. That tests indicates nothing wrong with the lift piston. Your last statements indicate a definite problem with the control valve or relief valve. Once the lift is in the up position letting off the throttle should have no effect on the lift lowering.

#18 in this attached drawing of a 1510 is a feedback rod. Yours may or may not look like that. I don't have access to a drawing of a 1610. After your latest post I doubt that is your problem. Probably no where close, but where might you be located? https://www.hoyetractor.com/CTGY/YM15103PTCON.htm

kenr74
Volunteer Poster
Posts: 16
Joined: Sun Apr 16, 2017 12:31 pm

Re: 1610D hydrualic fluid in engine oil

Postby kenr74 » Tue Apr 17, 2018 8:26 am

I'm in Oregon. First tractor if that wasn't obvious. This is really the only issue I have had with it but can't seem to fix it.

Definitely lifting a load. Not sure how much but probably 350 ish. I've lifted more in the past as I use the three point with a hitch to move my travel trailer.

My valve doesn't match the drawing at all but I think I found my feedback rod. It is attached to nothing so that is probably at least part of the problem.

I'll get a pic of it but it is basically connected to a lifting arm but then not connected at all to the lever or the valve. Looks like I'm either missing a spring or another rod to connect them together.
Last edited by kenr74 on Tue Apr 17, 2018 8:37 am, edited 1 time in total.

kenr74
Volunteer Poster
Posts: 16
Joined: Sun Apr 16, 2017 12:31 pm

Re: 1610D hydrualic fluid in engine oil

Postby kenr74 » Tue Apr 17, 2018 8:34 am

Image

winston
Volunteer Poster
Posts: 4501
Joined: Mon Feb 01, 2010 7:29 am
Location: North East Texas

Re: 1610D hydrualic fluid in engine oil

Postby winston » Tue Apr 17, 2018 9:29 am

Colored the feedback rod blue.
npI8jqU  feedback.jpg
npI8jqU feedback.jpg (216.06 KiB) Viewed 239 times

One end should be connected to lift arm shaft, other end to lift lever shaft.

kenr74
Volunteer Poster
Posts: 16
Joined: Sun Apr 16, 2017 12:31 pm

Re: 1610D hydrualic fluid in engine oil

Postby kenr74 » Tue Apr 17, 2018 9:50 am

I took all the weight off the arms and it lifts much higher. Maybe I do just have too much weight on it. Would trying to force it to lift too much cause the pump seal to blow out? Basically running at full throttle trying to lift.

I went all summer just using my mower without any issues but the oil mixing just showed up again after I moved my trailer. I may just be overdoing it.

kenr74
Volunteer Poster
Posts: 16
Joined: Sun Apr 16, 2017 12:31 pm

Re: 1610D hydrualic fluid in engine oil

Postby kenr74 » Tue Apr 17, 2018 9:55 am

This diagram is of my set up. The part in the red circle is not connected to anything. Looks like maybe it should be hooked to spring #38 but I don't see where #39 is or was.

I'm not sure this is actually effecting anything but want to make it right anyway.

Image

winston
Volunteer Poster
Posts: 4501
Joined: Mon Feb 01, 2010 7:29 am
Location: North East Texas

Re: 1610D hydrualic fluid in engine oil

Postby winston » Tue Apr 17, 2018 5:40 pm

You are hooked up correctly. Your circled area does not hook up. #39 is the bolt holding the silver spring in your picture.

kenr74
Volunteer Poster
Posts: 16
Joined: Sun Apr 16, 2017 12:31 pm

Re: 1610D hydrualic fluid in engine oil

Postby kenr74 » Tue Apr 17, 2018 6:03 pm

I ran down and talked to my local tractor shop today and he thinks the 3 point valve is acting like it should. The noise I'm hearing is the pressure release kicking in. Sounds like I'm just overloading it.

I can't see to find anything wrong so I guess I'll just replace the pump and hope that was the issue.

winston
Volunteer Poster
Posts: 4501
Joined: Mon Feb 01, 2010 7:29 am
Location: North East Texas

Re: 1610D hydrualic fluid in engine oil

Postby winston » Wed Apr 18, 2018 3:31 am

350# is not to much for your lift.

kenr74
Volunteer Poster
Posts: 16
Joined: Sun Apr 16, 2017 12:31 pm

Re: 1610D hydrualic fluid in engine oil

Postby kenr74 » Wed Apr 18, 2018 9:06 am

Where is the pressure relief on that valve anyway? It all made sense when I was talking to the mechanic but I thought my only pressure relief was in the loader valve.

winston
Volunteer Poster
Posts: 4501
Joined: Mon Feb 01, 2010 7:29 am
Location: North East Texas

Re: 1610D hydrualic fluid in engine oil

Postby winston » Wed Apr 18, 2018 9:43 am

It is in the housing where the stop valve is located. Not familiar with the 1610, could be front or side of the housing.


Return to “Tech Support”

Who is online

Users browsing this forum: No registered users and 11 guests