33
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)
