Hi, I know this may seem a bit trivial but I need advice on how to remove the top (spindle) off a tap. I have removed the disc at the top and also the screw but can't shift the spindle to access the tap innards. I have tried pulling it off and also tapping it off with a mallet and piece of wood without success. I don't want to hit it too hard in case I damage the tap. Any advice would be most welcome