18
FILING
SAW
CHAIN
Level 3.
Tools Required: 4.5 mm round File P/N 89751001130;
Flat File P/N 89751100230;
Depth Gauge P/N 89751400232
IMPORTANT
Dull or damaged cutters will result in poor cutting performance,
increased vibration and premature chain failure.
WARNING DANGER
Always stop engine and wear gloves when filing saw chain,
otherwise serious personal injury may result.
1. Set round file (A) in cutter at 30
° angle. One fifth (1/5) of the file
should be exposed above top cutter edge.
2. Keep file horizontal in cutter and file in one direction.
3. File until cutter top and side bevel edges are sharp without nicks.
4. Place depth gauge tool (B) firmly on top of cutter with .025" slot
and end against front cutter raker. File cutter raker with flat file
until flush with top of depth gauge.
5. Finish cutter sharpening by rounding front raker edge (C) with
flat file.
6. Properly filed cutter is as shown.
7. Apply clean oil and rotate saw chain slowly to wash away filings.
8. If saw chain is coated or clogged with resin, clean in kerosene
then soak in oil.
(TOP PLATE ANGLE)
(SIDE PLATE ANGLE)
(DEPTH GAUGE)
(TOP PLATE CUTTING ANGLE)
