
MAINTENANCE
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• CORRECT 30° – file holders are marked with guide marks to align file properly to produce
correct top plate angle.
• LESS THAN 30° – for cross cutting.
• MORE THAN 30° – feathered edge dulls quickly.
• Remove filings from the file with a wire brush.
TOP PLATE FILING ANGLE
• CORRECT 80° – Produced automatically if you use the correct diameter file in the file
holder.
• HOOK – “Grabs” and dulls quickly; increases the potential for KICKBACK. Results from
using a file with a diameter too small or a file held too low.
• BACKWARD SLOPE – Needs too much feed pressure; causes excessive wear to the bar
and chain. Results from using a file with a diameter too large or file held too high.
SIDE PLATE ANGLE
CAUTION:
A dull or improperly sharpened chain can cause excessive motor speed during cutting,
which may result in severe motor damage.
WARNING:
Improper chain sharpening increases the potential for kickback.
WARNING:
Failure to replace or repair a damaged chain can cause serious injury.
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