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9-20 110907 01/09
WARNING: Always wear adequate eye protection when grinding mower blades.
FIG. 29
FIG. 30
FIG. 31
Re sharpening
pattern
Do not sharpen to original pattern (below).
It is easier to get a straight cutting edge following
the re sharpening pattern shown above
Original edge
Cutting
plane
Warped Blade (Replace)
Straight Blade
Comparison of Warped and Straight Blades
Cutting edge
Twisted Blade Edge
(replace)
Cutting edge
Cutting Plane
Straight Blade Edge
End view of blades, comparing
twisted and straightened blades