CARE AND MAINTENANCE
Side Plate Angle (Fig. 10f)
CORRECT 55°- The optimal angle can be
produced automatically if the correct diameter file
is used in the file holder.
HOOK - "Grabs" and dulls quickly. Increases
potential of KICKBACK. Results from using a file
with a diameter that is too small, or a file held too
low.
BACKWARD SLOPE - Needs too much feed
pressure, causes excessive wear to bar and chain.
Results from using a file with a diameter too large,
or a file held too high.
Depth-Gauge Clearance
a. The depth gauge should be maintained at a
clearance of 0.025 in. (0.6 mm), as shown in
Fig. 10g. Use a depth gauge tool (available
separately) to check the depth-gauge
clearances.
b. Check the depth gauge clearance every time
the chain is filed.
Use a flat file and a depth-gauge jointer (both
available separately) to lower all gauges uniformly
(Fig. 10h). Use a 0.025 in. (0.6 mm) depth-gauge
jointer.
Depth gauges must be adjusted with the flat file
in the same direction that the adjoining cutter was
filed with the round file. Use care not to contact the
cutter face with the flat file when adjusting depth
gauges.
10f
55°
Correct
10g
Depth Gauge Clearance
10h
Depth Gauge Jointer
20
Side Plate Angle
Backward
Hook
Slope
Incorrect
Incorrect
0.025"
(0.6mm)
Flat File