3-Point Hitch No lift

[Car Doc]

I took the cover off of the control valve. I cant see anything unusual,the shaft that appears to operate the valve has spring tension and moves in and out freely. I have a parts book that shows the valve,but it is in japanese.
The service manual I have is for a 330 and is quite different.Not sure if I want to take control valve apart or not.

Take a pic of the area under your seat and also the back of the tractor paying attention of the right upper arm if you can please that may help identify something to anybody reading this.

I already looked around for pics of your model and was unable to find what I needed. Btw dont take anything apart until you fully can understand all the parts JMHO!

Steve

 

[kenmac]

he said the FEL still works so the pump must be OK.i would be looking at the control valve as it may be seized.

Guess I didn't catch that part

 

[careyo63]

OK, loader is working so we know the pump is putting out. (Tractor pump does operate fel? not a crankshaft driven pump?)

This one also If that was all you was refering to and the valve also.

 

[2 Acre Farm]

So I mentioned that I removed the control valve cover,everything looked o.k.,the control valve shaft had spring pressure and seemed to operate smoothly.So I reinstalled the cover,and thought I would just try it again before moving to next step. Yep sure enough everything works again,I put the bush hog on and mowed for a couple hours-everything fine.
Now I'm just wondering what happened?

 

[careyo63]

If you have the valve i'm thinking inside the valve the piston or shaft may have been stuck in or to go down.Just a guess. Have you serviced your hyd. fluid and screen lately if not may want to think considering it.Glad you have it going again.

Carey

 

[rmully]

May be some gunk in the system. I would replace fluid and filter and clean screen.

 

[2 Acre Farm]

Servicing the hydraulic system sounds like a wise idea. I'll do that and thanks for the input.

 

[2 Acre Farm]

I drained the hyd. oil from the bottom of the trans. and pulled the side cover,there is no screen assembly there to service. Shouldn't all models have this? There is no external filter that I see anywhere.

 

[winston1]

I thought all models have screens. Are there any more covers down low on the transmission housing. Maybe you pulled the wrong one or maybe a former owner did away with it??

 

[rmully]

I would make sure you are in the right location and if no screen put one in.