gogreen
Member
My 3520 has started the jumping in the 3 point hitch system. I have 550 hours and I did push a lot of snow with the rear blade this winter. Now, the 3 point hitch will drop about an inch or two over about a minute or less and then it will jump back up. I am going to change the hydraulic fluid and filter but I doubt that will fix it. I also need to see if I can tighten the rockshaft lift handle, as now when I hit bumps it will move forward on its own. If anyone can explain the problem with the rockshaft valve mentioned earlier in this thread, I am listening to see if I could have that problem.