631 Lift

[Tractor Shed Billy]

I have a 631 that I purchased last summer. I used it quit a bit for plowing and discing a 3 acre food plot in the spring and summer. The lift worked fine until recently when I had my boom pole on it lifting some heavy stuff. The lift kind of took off on it's own wanting to go up quickly and now wants to stay in the up position all the time. I thought maybe the control valve is sticking so I changed the hyd oil but still the same. I tonight I pulled the cover off to take a look and everything seems to be free and working. I do not have the guage the book calls for but I'm assuming since it worked good before the adjustments are okay. Any recommendations?

Thanks, TSB

 

[souNdguy]

Deffinately sounds like junk in the unloading valve.

soundguy