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MC-PX/PS/PL (Pruner Attachment)
Sharpening saw chain
Whenever wood chips become small and fine or the wood
cannot be cut without pressing the pruner hard against it, then
it may be necessary to sharpen the saw chain.
1. Tighten the saw chain slightly firmer than usual then se-
cure the pruner's main unit.
2. Place a file with a 4.0 mm (5/32 in.) diameter against the
cutter and extend 1/5 of it beyond the cutter.
3. Press the file against the cutter at its base in a 30-degree
angle from the vertical line and move the file straight
ahead from the inner side to the outer side of the cutter.
4. Shift the file so that it remains in a 90-degree angle against
the guide bar.
5. Once one side of the cutter is sharpened, sharpen the
other side of the cutter. Be sure to keep the length and
angle uniform throughout.
IMPORTANT:
• The efficiency of this work greatly impacts the sharp-
ness of the cutter. It is recommended that sharpen-
ing be performed often.
• Be sure to use an appropriate file for sharpening the
saw chain cutters.
Adjusting depth gauge
The depth gauge determines how deep the cutter cuts
into the wood.
1. When the cutter lengths become shorter due to
sharpening, the depth gauge must also be cut back.
2. Cut down the depth gauge using a flat file in a way that
the depth gauge is positioned 0.64 mm (0.025 in.)
lower than the leading edge of the cutter.
3. Once cut back, grind the tip of the depth gauge
round.
IMPORTANT: Be sure that the depth gauge is not
cut back too far, as doing so will re-
sult in a faster deterioration of the
cutter.
30°
Maintain uniform lengths of cutters
Depth gauge
Depth gauge setting
Side plate filing angle
Cutter Maintenance Specifications
＿ 31 ＿
File
90°
Guide bar
Sharpen shaded area
0.64mm
Top plate cutting angle
80°
Top plate filing angle
30°
55°
30°
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