Page 31 — English
TOP PLATE FILING ANGLE
See Figure 41.
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
See Figure 42.
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.
MAINTAINING DEPTH GAUGE
CLEARANCE
See Figure 43 - 45.
Maintain the depth gauge at a clearance of .025
in. Use a depth gauge tool for checking the
depth gauge clearances.
Every time the chain is filed, check the depth
gauge clearance.
MAINTENANCE
INCORRECT
MORE THAN 30°
TOP PLATE FILING ANGLE
LESS THAN 30°
Fig. 41
30°
CORRECT
INCORRECT
BACKWARD SLOPE
SIDE PLATE FILING ANGLE
Fig. 42
80°
CORRECT
HOOK
Fig. 43
RAKER (DEPTH GAUGE) CLEARANCE
.025 in.
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