Rubics cube

I finally decided to get a new tractor. Well, I say new, 6 years newer than the old one. A Ford 4610 with what is colloquially known as the "Rubics cube" gear shift. Having tried randomly wiggling the lever about, searching the web gave no clue about how it worked. I finally resorted to buying a manual. Out turns out it is fairly straightforward, although completely unintuitive. There are three neutral positions. The one in the middle of where the starter interlock is. The ones at the ends allow the lever to be lifted, from where a secondary movement forward or back selects a gear.

All this is the right hand lever. The left hand reverse/ low/ high one is much more obvious.