Mustang08

Hello, I have a helimax axe ez and im in the process of fixing parts i broke on it. Now the one part i broke is the lower prop assembling thing and i took all of it apart only problem is u have to slide it off the shaft so i tried to take the upper prop assembling off but it seems to be pressed on there so idk if there is a way i can get that off or if i have to do it another way. If you need pics let me know i can get some up to show what im talking about. Thanks