50
Top:
Filing
angle
Center: Side
plate angle
Bottom:
Table of file
diameters
Rapid-Standard
Rapid-Micro
Topic
-Micro
Rapid-Super
Topic-Super
Rapid-Standard
Rapid-Super
Rapid-Micro
Topic-Micro
Topic-Super
Side plate angle
The upright cutting edge just below the
top
plate is
known
as the side plate cutting edge. The side plate angle
is,
therefore,
the angle between the side plate cutting
edge
and the horizontal line formed by
the
cutter toe
and
heel.
The following side plate
angles
are
specified:
Rapid-Standard
80°
Topic-Micro
70°
Rapid-Micro 70° Topic-Super
70°
Rapid-Super
80°
These angles are obtained automatically if you use a
file
holder
or
roller filing
guide with the specified size of
file
(diameter) and hold the file correctly during
sharpening.
Top plate cutting angle
The
top
plate cutting angle
is the
most
important
angle
since it influences the chain's cutting behavior. It is
also
obtained automatically if sharpening is performed
pro-
perly with
a
suitable STIHL sharpening tool.
Sharpening
Only special
saw
chain files
may
be used for
sharpening
and they
must
match the chain concerned (basic type,
pitch). The shape and cut of machinists' files makes
them
unsuitable for saw chain. It is best to use the special
chain
file with a file holder or other filing aid. Always file
from
the inside
to
the outside of the
cutter.
If
you
sharpen the
chain while it is
on
the bar, increase chain tension
before
filing and reset it to correct tension afterward.
All
cutters must
be filed
to
the
same
length. Since the top
plate slopes downward to the rear (clearance angle),
the
Chain
pitch File dia. File No.
.325"
(8.25 mm) Rapid 3/16" (4.8 mm) 0811 411 8088
.325"
(8.25 mm) Topic 5/32" (4.0 mm) 0814 242
3383
3/8" (9.32 mm) Rapid
3/16" (4.8 mm) 0811 411 8088
3/8" (9.32 mm)
Topic 5/32" (4.0 mm) 0814 242
3383
.404" (10.26
mm) 3/16" (4.8 mm) 0811 411 8088
1/2" (12.7
mm)
1/4"
(6.3
mm)
0811 411 8118
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