Replace the drive belt tensioner/idler pulley on Wright ZK

My money making Bumblebeast suddenly lost its go on the last property of the day,my 4 acre client too. Belt was still fine but came off. How? The tensioner pulley had lost its mind.....and it's bearings. Got it on the trailer this morning, finished with the 36 Yellow Jacket and got most of today's list done before getting attempting the repair. Thankfully a newer dealer more local to me had the pulley in stock. Found no other videos on this so figured it out, got it done this evening and posted this for others. If I can do it, so can you.