Blade wear is dependent upon hardness and abrasivesness of materials used. Blades are cast
from the hardest steel practical to use. Only experience will determine life expectancy. The best
maintenance is to clean the mixing trough thoroughly after each use and to replace blades before
wear becomes excessive.
b. Check Wear
(1) Using wear gage (fig. 3-29) place bottom edge of the long leg against the auger shaft and the end of the
(2) If the blade is worn below the lower edge of the short leg, the blade must be replaced. Report It to
Figure 3-29. Wear Gage