This is definitely something I need to investigate. A few weeks back in a whim I decided to pull the pressure relief valve apart and to my surprise the seat and “needle” looked to be in decent shape… I was hoping for an easy fix! I hadn’t looked into the opposite side though. Great task for this...
I will state that when cold at idle the 3 point will not lift without some throttle applied, however works significantly better than when the tractor has been at operational temp for a while.
I am suspicious of the oil thinning once warm and seeping by the piston o rings… only one way to find...
Let’s hope it’s not pump related. The hydro shuttle is strong cold or warm. When I into the lifting issues the box blade could be full or empty with the same result. When the tractor is shut off the 3 point will gradually bleed down over a 24hr period
My kubota has this same problem. I suspect lift cylinder seal issues and will be replacing them.
Arms stay up with my 7’ bb but will take a full day to drop completely to the ground
I have an older L355ss that will not lift the three point with out aggressive throttle once at operating temp, sometimes it barely moves. When cold it lifts with minimal throttle.
Thoughts? Worn piston/seals?