Box Blade moves down on its own

[o2l]

I spent about 3 hours moving a manure pile. During that time, I noticed that the box blade would slowly descend from the fully up position a little at a time while I worked. I would have to raise the 3 point hitch back up. It never did go completely down. Is something leaking?

 

[TripleR]

That is fairly common for a quarter inching 3PH which is why I don't like them.

 

[k0ua]

Normal operation for 1/4 inching valve. Some will sink quicker than others, but without position control they will eventually sink if you dont bump them up once in a while.

James K0UA