Z421KW Runs but quit moving

[jboyle]

Hi, I'm new here and need some help. My 2017 Z421KW just quit. it was running fine, blade engaged and mowing and suddenly just stopped. Engine runs, blade spins but HST won't engage. I looked at the HST Bypass rods, the one on the right seemed to be pulled out and both of them feel loose. But pushing it back in didn't help. I'm thinking it may just be the linkage. Does anyone have any ideas?
I appreciate any help anyone may offer.

 

[whitetiger]

Check your hydro state drive belt, its the upper one. Each side is completely independent of each other than the reservoir and belt.