WARNING: Always protect your hands by wearing heavy gloves when performing any maintenance on the line-cutting blade.
Loosen the two screws and remove the line-cutting blade from the guard (Fig. O).
O-1 Screws
O-2 Line-cutting blade
2.Wear proper eye protection and gloves and be careful not
to cut yourself.
3. Secure the blade in a vise.
4. Carefully file the cutting edges of the blade with a fine-tooth file or sharpening stone, being careful to maintain the original cutting-edge angle.
5. Replace the blade onto the guard and secure it in place with the two screws.