The cutting edge of the wing blade is made of wear-resistant material that extends wear life. Chopper balance must be maintained. Follow operator manual to ensure proper blades are replaced. Depending on type of chopper, either 6 or 8 blades must be replaced to keep balance.
A-AH225940 – Straw Chopper Knife, Scoop Blade
John Deere 70- and S-Series combines use a unique wing blade. The wing blade design moves more air, providing an even spread of material across the entire width of the cutting platform.