I guess I need to find a parts diagram to figure out how that is adjusted. I don't think the dealer will be fixing anything. It's an auction house. I'll be using it as negotiating.Make sure the fan has nice tight clearance to the fan housing.
That shaft sticking out is probably just a concentric locking bearing or two bearings on the shaft that require repositioning. I once took a blower apart not knowing what those things were and totally destroyed the bearings.
On another point. Does anyone know why some blowers have such a deep housing and some are so shallow (like this one). Seems if the shallow ones work as good, why would you want the extra weight and size?
Diverters seem to cost just as much as adding a second valve to the order and they all the complication of bringing in wiring and a switch. I'll likely just install 2 remotes off the backhoe swing pump circuit that isn't used with the hoe removed.