Just in case the normal adjustment doesn't make it work for you this was what I found wrong with mine when it was first delivered and how I fixed it.
Hope it helps. It was my first post from a while back. /forums/images/graemlins/smile.gif
I had the problem of my lift control lever not returning to neutral automatically with my BX 1500 from the day it was delivered.
The man from my dealer who delivered my Kubota told me, “On these little tractors you have to return the lift lever to neutral manually or it will keep a load on your engine with the hydraulic pump”. He was about 60ish and appeared to me to be an old sage in the operation of tractors so I took his word for it. Problem is the owners manual stated that it should return to neutral automatically, so I called my dealer and talked to their “head” mechanic. He said he thought the manual covered all the BX models and the 1500 didn’t have that feature. WRONG, it does! After investigating the problem myself I discovered that the lift control lever was not centered in the slot on the plastic lever guide located on the right fender and was dragging on one side. It didn’t feel like much resistance but the automatic return is designed to where it doesn’t have much leverage and that is all it takes to keep it from working.
I fixed the problem by removing the right rear wheel, then removing the screws that hold the plastic lever guide to the fender and placing a large Crescent wrench on the flat lever below to first bend, to prevent putting any strain on the lever shaft, and bending the lever by hand just a little so that it is centered in the lever guide slot. Then replaced the screws that hold the plastic lever guide to the fender. It has worked perfectly ever since. I believe the lever was bent, or not bent properly, when it was installed at the factory as I don’t believe it could be moved enough to bend it while in the plastic lever guide slot without breaking it.
This is kind of long but I hope this helps anyone with a similar problem.