Hold the propeller to prevent It from rotating and use the propeller wrench fo tighten the propeller nut until firm. Do not over-tighten. (Fig. 2) Only use the supplied propeller ranch to tighten, other tools may cause over-tightening resulting BE in damage. TIP: Keep this hand wrench in your boat in the event that you get debris such as fishing line around the propeller shaft Tighten the nut 1/4 tum past the ‘snug’ point.