How do you remove spanner lock-nut on front hub?

To remove a spanner lock-nut on a front hub, first ensure the wheel is securely removed from the bike. Use a spanner tool that fits the notches of the lock-nut, and turn it counterclockwise to loosen it. You may need to hold the axle still with another tool or your hand to prevent it from spinning. Once loose, you can unscrew it completely by hand.