[mikeb110]

My kubota G2160 has stop the mower height up and down. The lever can put the mower down all the way and up but cannot set the height wy the knob under the seat. Is there is a valve under seat to check? Any help will be appreicated

 

[Mark / Ohio]

Here's a manual and deck parts diagram for that model:

Kubota G2160 Manual and Mower Deck Parts Manual - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information

Take a look at page 151 in the manual. I think those might be the parts you need to check.