D10 Hydraulic Problems

Hey all,
      I have a D10 that I’ve had for around 10 years. The hydraulics always worked ok. Well they went up and down when told to and held position just fine. Traction booster never worked.
Well now the lift wants too raise any time the tractor is running. It is a series 2 with live hydraulics. The control valve feels funny now, not wanting to click into position. Also the traction booster valve that rides on the 3 point has always just been tied on to the tractor with wires. It is still hooked up to the control handle but the whole valve just goes up and down with the control handle. It does not ride on the 3 point linkage like I think it should. I don’t really know how that valve is supposed to be mounted. I don’t see a way to keep it on the 3 point linkage, but I’ve never seen another series 2 to see how it is supposed to be mounted.   I don’t know if that valve is part of the problem or not.
Does the main valve give many problems? And is it rebuildable? Does it have o-rings in it that could have went bad?
Anyway the main problem is that the 3 point arms will constantly raise slowly and not go down anymore.
Anyone seen this before? Or any suggestions on what I should look for to fix this problem?
Also if anyone has a picture of how the boost valve is supposed to be attached I’d appreciate seeing how it hooks up.
Thanks for any help with this issue.

Thanks for responding, is this lock screw in the main valve?
I will look tomorrow.
Thanks

Eric,
I went and looked at my tractor and it doesn’t have the control rod that you mentioned.
Mine has a 2 spool hydraulic valve and just hose connections. It is a series 2 with live hydraulics. Is your D10 have a live pump or a CA style pump? I have a CA and the pump on it has the rod and set screw like you have mentioned. The series 1 used a CA style pump. Is my tractor missing something or does yours have the CA style pump? I tried to include a picture of my valve but couldn’t figure out how to load the picture. It was too large, it said.
Thanks for your help, if you know how to load pictures and could send one of your pump and this linkage it would be great.
Thanks.

I appreciate the reply, thanks for trying. Maybe someone with a series 2 will see this and respond.

Yea the series 1 was like a CA, on the series 2 they went with a quill shaft somehow driven off the engine all the way to the back and a hydraulic pump that was turning anytime the engine was running, and it has a 2 spool valve mounted to the right of the seat. I think my problem may be in the valve, but I don’t know anything about it or if it’s repairable.
Thanks

Sounds like a valve problem. I know nothing about a D-10.

Thanks Paul, yes the traction booster valve is still connected by hoses, but it is just hanging on the rear of the tractor by wires, just rigged to not fall off. I had wandered how to bypass it, thanks I’ll just disconnect and plug the lines as you suggested.
    The spool valve by the fender, are these repairable or rebuildable? Or am I just out of luck on it? Are there any O-rings inside of this valve that might help to be replaced?
      If the spool valve can’t be fixed can I just plumb in some other type of valve? What type would I need?
Thanks for the reply and tips, and thank you Dr. Allis for your reply as well.
I’d love to fix this hydraulic problem because the rest of the tractor is in great shape with live hydraulics and independent pto. Allis should have done more tractors with these options when they made this one.