Operating Guide

34
MAINTENANCE
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.
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.