Senix CSE12-M Operator's Manual página 18

B
C
A
D
A - Top Plate
B - Cutting Tip
C - File Position
D - Ridge
To sharpen the chain:
1. Using protective gloves, ensure the chain is
correctly tensioned on the guide bar.
2. Use a round file with a diameter 1.1 times
the cutting tooth depth. Make sure 20% of
the file diameter is above the cutter's top
plate (Fig. 17).
A - Top Plate
B - Side Plate
NOTE: A file guide is available from most
chainsaw retailers and is the easiest way to
hold the file at the correct position.
3. File at an angle perpendicular to the bar,
and at an angle of 25° to the direction of
travel (Fig. 18).
4. File each tooth from the inside towards
outside only. File one side of the chain first
then turn the saw around and repeat the
process.
• Sharpen each tooth equally by using the
same number of strokes.
• Keep all cutter lengths equal (Fig. 19).
Each time the cutting tip is sharpened the
cutting length is reduced. When the cutter
length is reduced to 0.16 inch (4 mm), the
chain is worn out and should be replaced.
• The depth gauge setting is also reduced
with each sharpening. Every 5 sharpenings
18
Cutter
Length
Depth Gauge
Setting 0.025 in.
Fig. 16
A
B
Fig. 17
use a depth gauge measuring tool to check
the height between the cutting tip and the
ridge (Fig. 16). When necessary, use a
flat file to file down the ridge to achieve
the .025 inch depth gauge setting. Depth
gauge measuring tools are available from
most chainsaws retailers.
• If the saw is not functioning properly, take
it to a qualified chainsaw service center to
have the saw inspected. Use only identical
parts as listed in this manual.
Sharpening Angle
A
SAW CHAIN DIRECTION
A - Left-hand Cutter
A
C
SAW CHAIN DIRECTION
A - Right-hand Cutter
B - Left-hand Cutter
C - Bumper Drive Link
D - Tie Strap
25°
FILE
DIRECTION
Outside
Inside
Fig. 18
B
D
Fig. 19
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