I don't know if this is operator error or I have a problem. I have a 1 year old Kubota B2920. When I use the control lever to lift the FEL it will only go up 1/2 way. In order to make it drop I have to push the shift lever down (like it drops into another slot) and lower it. When I do this there is not control of the downward drop, It will continuing dropping (at a steady rate) until I pull it out of the "indent" position. The FEL will lift and lower normally if I use the curl and uncurl feature at the same time. It just won't work up or down by itself. Any ideas or suggestions?