12
45
46
44
47
Fig.
39
35.
Top
plate
36.
Working
corner
37.
Side
plate
38.
Gullet
39.
Heel
40.
Chassis
41.
Rivet
hole
42.
Toe
43.
Depth
gauge
44.
Correct
angle
on
top
plate
(degree
of
angle
depends
on
chain
type)
45.
Slightly
protruding
“hook”
or
point
(curve
on
non-chisel
chain)
46.
Top
of
depth
gauge
at
correct
height
below
top
plate
47.
Front
of
depth
gauge
rounded
o
ff
.
LOWERING
DEPTH
GAUGES
WITH
A
FILE
1)
If
you
sharpen
your
cutters
with
a
fi
le
holder,
check
and
lower
the
depth.
2)
Check
depth
gauges
every
third
sharpening.
3)
Place
depth
gauge
tool
on
cutter.
If
depth
gauge
projects,
fi
le
it
level
with
the
top
of
the
tool.
Always
fi
le
from
the
inside
of
the
chain
toward
an
outside
cutter.
(
Fig.
40
)
Fig.
40
4)
Round
o
ff
front
corner
to
maintain
original
shape
of
depth
gauge
after
using
depth
gauge
tool.
Always
follow
the
recommended
depth
gauge
setting
found
in
the
maintenance
or
operator
manual
for
your
saw.
(
Fig.
41
)
Fig.
41
GENERAL
INSTRUCTIONS
FOR
FILING
CUTTERS
File
(48)
cutter
on
one
side
of
the
chain
from
the
inside
out.
File
on
forward
stroke
only.
(
Fig.
42
)
5)
Keep
all
cutters
the
same
length.
(
Fig.
43
)
6)
File
enough
to
remove
any
damage
to
cutting
edges
(side
plate
(49)
and
top
plate
(50))
of
cutter.
(
Fig.
44
)
48
48
48
Fig.
42
Fig.
43
49
50
Fig.
44
SHARPENING
ANGLES
FOR
SHARPENING
SAW
CHAIN
1.
Part
Number
90SG-40E
2.
Pitch
3/8”
3.
Depth
Gauge
Setting
0.025"
4.
Side
Plate
Filing
Angle
80°
5.
Top
Plate
Angle
30°
6.
File
Guide
Angle
90°
000Book̲TCS27EPA(S)̲Eng.indb 12
000Book̲TCS27EPA(S)̲Eng.indb 12
2012/04/04 16:47:16
2012/04/04 16:47:16
