LawnMaster CS1216 Manuel D'utilisation page 39

MAINTENANCE
Check the saw chain for possible wear and damages. Replace it with a new one if required.
Experienced user can sharpen a dull saw chain (see section "Saw chain sharpening" below).
Refit the saw chain (5) and the guide bar (6) as described under "Assembly".
SAW CHAIN SHARPENING
Have your chain (5) sharpened professionally at an authorised service centre, or sharpen the chain
yourself by using a proper sharpening kit. Also observe the sharpening instructions supplied with
the sharpening kit.
The height difference between the tooth and the ridge is the cutting depth.
When sharpening the saw chain (5) you have to consider the
following points
To sharpen the chain proceed as follows:
Use a round file, whose diameter is 1.1 times the cutting tooth depth.
Make sure 20% of the file diameter is above the cutter's top plate.
A file guide is available from most reputable tool merchants and
is the easiest way to hold the file at the correct position.
File at an angle perpendicular to the bar, and at an angle of 25°
to the direction of travel
File each tooth from the inside towards outside only.
File one side of the chain first than turn the saw around and repeat the process.
Sharpen each tooth equally by using the same number of strokes.
Keep all cutter lengths equal. Check the safety depth gauge height every 5 sharpenings.
If the depth gauges are also trimmed it is essential that the original profile is restored.
Use a depth gauge measuring >>instrument to check the height of the depth gauge.
Depth gauge measuring jigs are available from most reputable tool merchants
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