So I bought a new L 3901 HST last summer and just turned 50 hours. Love the tractor, however there has been one small issue that was driving me nuts. I sometimes had trouble getting into low range. I never forced it because I didn't want to bend the handle but you just had to fool with it and eventually it would engage just fine. Well yesterday I decided to take a closer look at the linkage. I had it in garage with nothing on 3 point and lower arms all the way down and couldn't get it into low. For some reason I lifted the lower arms a little and it then tried low range and it went right in??? Tried it both ways and every time same result. So in other words if my lower arms are all the way down I have trouble getting it in low range, lift them just a little and no problem.