Mike ,

Normally most PTO gennys have gearbox just like car or truck tranny is they will increase the speed from the tractor pto speed [ useally either 540 or 1000 rpm ] to correct speed what the genny is set up but there is some do have belt drive it can change the speed on the spot if need to.

Merci, Marc

Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)