Hydrostatic drive and Pto failed

[LoweFarm]

Hey so I go out to blow some snow and my Pto doesn’t turn on. Then 30 min into clearing snow with the loader the tractor stops and I have no fwd or reverse in any range. Loader, power steering, remotes and 3 point hitch all function like normal. Fluid is full and clean. It’s a 2008 Montana R3644HST. Has anyone encountered this issue? Is there a way to test the hydrostatic pump without splitting the tractor? Or a way to diagnose before I take it apart? Thanks

 

[bensears]

Checking to see if you resolved your issue. I have a 5784 with the exact same issue. I can start the tractor and run all implements but no forward or backward in any gear or range.