Hydraulic remote question JD 2020

[jackmac]

I have a 2020 that started doing something odd today. As I was mowing with my pull behind bush hog the hydraulics would lift without touching the lever. If I tried to lift the deck slightly it would raise all the way without stopping. Does anyone know what could be happening? I am guessing that the valve is leaking by and needs to be serviced. Please help.

Jack

 

[jd110]

Are you raising the mower on your three point hitch, or is it being controlled by your rear hydraulic outlets?(scv) If on the three point hitch, is your load and depth control set on "L" or "D"? Does the control lever stay where you put it or is the lever moving by itself?

 

[jackmac]

I am raising it from my scv ports. It is a pull behind with trailing wheels. I have uses it a lot and it just started doing this today.

 

[Tx Jim]

The poppet valves in the scv box need attention as 1 or more is leaking. They can be a little contrary to adjust, it stated in TM to use a dial indicator.