Thank you for your question on the model 523008 range hood. There are two screws that hold the motor assembly in the housing. You can remove those screws to get the assembly out, but I would suggest that you do not remove the fan blade from the motor shaft. It is force fit onto the shaft and repeated removing and reinstalling will cause the blade to become loose and need to be replaced. Please contact technical support with further questions at 1-800-637-1453.