I recently took the backhoe off my 60-hours-old L5030. Before doing so, I did my 50-hour maintenance, including changing the hydraulic fluid, with the backhoe on the tractor. Following the maintenance I removed the backhoe and put my rotary cutter on. For some reason the 3-point hitch won't lift correctly. It is sluggish, it wants to stay down. I had a L3830 last month and the hitch just snapped up, a smooth operation. Now, with the larger tractor, the hitch won't budge from the down position unless I rev the engine to around 2500 RPM and then I have to move the loader bucket up and down a few times. What is this problem? I have improved the situation a little by adjusting the "close/open" button below the front of the seat. But I am not yet satisfied with the performance. Yes, I do have enough Kubota UDT hydraulic/transmission fluid in the machine, and the filters were replaced correctly. Any help greatly appreciated. Thanks.