Its a simple process, remove the bowl and pull the filter. there's a small valve that will close when you remove the filter so the fuel will stop flowing (kubota recommends the tank is less than half full to prevent fuel from flowing past valve). put the new filter in the bowl, install & lube new orings and re-install. As you thread the bowl back on the valve will open and re-fill with fuel, let it refill to remove any air before fulling tightening. The filter has 2 o-rings, make sure you get new ones when you get the filter.