I would like to remove the sheet metal spindle cover and not sure how to start. Does it come out the top or out the door opening? I can't go out the top as there is not enough room to the ceiling. How many screws are there? Are some hiding somewhere? How many screws in the chip guard? Can someone provide a step by step instruction please, I don't want to make any mistakes. What do I do about the tool release button (switch)?