13
Figure 12
). (Note: File at midpoint of guide bar.)
Figure 12
Note:
This illustration shows file guide placement and filing direction for sharpening
cutters on left side of chain.
4. Hold file guide level. Make sure 30° mark on file guide is parallel to center of
guide bar (
see
Figure 13
). This will insure that you file cutters at 30° angle.
5. File from inside towards outside of cutter until sharp. Only file in this one direction
(
see
Figure 13
). (Note: Two or three strokes with file should sharpen cutter.)
Figure 13
Filing Cutter Depth Gauges
The cutter depth gauge clearance is reduced as cutters are sharpened. After every
second or third sharpening, reset cutter depth gauges.
1. Place depth gauge tool (.025") firmly across top of two cutters. Make sure depth
gauge enters slot in depth gauge tool (
see
Figure 14
).
2. Use medium flat file. File depth gauge level with depth gauge tool.
3. Remove depth gauge tool. With flat file, round off front corner of cutter depth
gauge (
see
Figure 15
).
After several hand filings, have authorized service center or sharpening service
machine sharpen chain. This will insure even filing.
