How can i enlighten the diff. between a geared or hydrolic lown mower tranny? ...
Answers: A geared tranny on a lawn mower will use a belt and idler/tensioner arrangement to function as the clutch beside selectable gears similar to a manual nouns.
A "hydro" drive, the engine turns a pump. The fluid then go to a hydraulic transmission that powers your gadget. This allows for infinite gear ratios, usually much greater luxury of operation.
I hope this is what you needed to know.
With the geared transmission on a prairie mower you have to stop to transform gears. The hydraulic will shift without stopping. The unreliable belt drive type movers don't stop to shift either.