Good day all! I thank you and compliment all for the information that is here. I just took delivery on a 2021 BX 1880 last October. (I love it!) Being late in the year I wound up taking the deck off and using the FEL for snow removal. A couple weeks ago I mounted the mower. I moved the height control knob to the desired cutting height and lowered the deck. It was too high so I lifted the mower deck and readjusted the knob. Bingo! Cut the yard and it cut great! Yaa! Now I want to do some hole filling and some private road maintenance with the FEL which I unhooked before mounting mower deck. Being minor work, I chose to leave the deck on. However the deck will not lock up. There is no way the adjusting knob will go into the "Top" position. I proceeded to lower the deck and remove the rear lift arms then lifted them. Now I can rotate the knob into any position. So is there any way to fix this myself? Yes I know it is new and under warranty. However the dealer is 50 miles away and with them picking it up and working on it, That much time without a tractor does not exactly float my boat for what could be a simple adjustment. If I must do that then fine. But would at least like to attempt it myself first in effort to save time. Yes I am new to Kubota. Thank you and have a great day!