PTO = Power Take Off .
It is the bit at the back of the tractor wher you plug things in….. a bit like a hoover attachment that doesn’t suck but drives …… powers whatever thing you put on….. such as the topper, and the …….. I dont think we have anything else to run off it……. yet!!!!!!!!!!!!

Is that where you attach the muck spreader? — POOO! So too speak!