GreenWorks 20022 - Filing Angles and Techniques

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