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 B lade
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