When everything goes right with the quick hitch I can connect and leave without getting off the tractor. Same with removing a implement. BUT I put items on not so level or ideal ground and that takes a little more effort.
My 21 year old B7800 started up then off sometimes when I let off the key. Turned out it was going from start and then to off instead of run. Replaced switch for my issue
no ace here but I would put the fuse in and check the voltage at the battery and if you can put a clamp on amp meter to check the amps out. fuse blown could be as simple as a bat connection at fuse block and high draw.