This is my first post here, I don't know if I am in the correct section or not. Sorry if it is the wrong one, but I think the hi/lo works off hydraulics?
I have a John Deere 1830, everything works great on it, except for the hi/lo shift. It works perfectly in lo, but when I put it into hi it makes a whinning spinning sound, I not really sure how to describe it, no grinding or anything like that, but as if something is spinning and not catching what it is supposed to. I also am not really sure how the hi/lo system works. I should also state that SOMETIMES after the tractor warms up the hi/lo shift works. If anyone has any ideas of what it could be and how to fix it, I would be grateful. Thank you in advance.