and if your taper fit is right it will be very difficult to remove, so I recommend you NEVER use a hammer. I use an electric or pneumatic impact wrench along with a puller, instead. I've struggled to turn the puller hard enough with a wrench, but it pops right off with the impact wrench.

Also, if pulling the prop it's also a good idea to true up the shaft and coupling, and have the prop trued and balanced. Over time the shaft can develop some run-out, and even .0002" can make a vibration difference. A good prop shop is equipped for this work. I use S&S propeller in Queens, NY. ( http://sspropeller.com/ They manufacture props too.) Last time I went there with all three components and it was about $150 as I recall. Well worth it.