
31
MAINTENANCE
TOP PLATE FILING ANGLE
• 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.
SIDE PLATE ANGLE
• Correct 80° – Produced automatically if you use the correct diameter file in the file
holder.
• Hook – “Grabs” and dulls quickly; increases the potential of 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.
Top Place Filling Angle
Side Plate Filling Angle
Correct
Incorrect
Incorrect
Hook
Backward Slope
Raker (Depth Gauge) Clearance
1/32”
(0.6 mm)