Do you know what valve and joystick you have on your tractor. I noticed in the FEL owners manual that it mentions a two speed control for dumping. I tried this today, and mine doesn't seem to have this feature. My stick is the kind with the pull/push locking ring. Can't seem to recal the manufacturer at the moment.
Sorry I've been away... No I dont no what kinfd of vavlve I have...no names on it. I dont have a locking ring..this I know. I have a O4 model all my owners manuals are at my other place with the tractor..