The big finale? Install setscrews in the propeller hub to prevent any insidious marine growth from fouling the tapped holes. Then, after dealing with the shaft nuts, install a new cotter pin in each shaft tip, too.
Some onboard equipment is just indispensable, whether it’s required safety gear or those items on which you’ve come to rely help you feel safe. To see the things we won’t leave the docks without, look here. ▶