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7. Make a few firm strokes on every tooth.
File all left-hand cutters in one direction.
Then move to the other side and file the
right-hand cutters in the opposite direction.
Occasionally remove filings from the file
with a wire brush (Fig. 12).
A dull or improperly sharpened chain
can cause excessive motor speed during
cutting, which may result in severe motor
damage .
Improper chain sharpening increases the
potential of kickback .
Failure to replace or repair a damaged chain
can cause serious injury .
Fig . 10
5/32"(4.0 mm)
Round File
Filing Direction
Fig . 11
Fig . 12
Left Hand
Cutters
Cutter Tooth
Sharpening
Angle: 30°
Right Hand
Cutters
21
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