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TTL758CHN
In
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EN
Care and maintenance
3). To sharpen the chain proceed as follows:
- Use protective gloves.
- Ensure the chain is correctly tensioned.
- Engage the chain brake to lock the chain on the bar.
4). Use a chain le, whose diameter is 1.1 times the cutting tooth
depth. Make sure 20 % of the le diameter is above the cutter’s
top plate.
5). File at an angle perpendicular to the bar, and at an angle of 25°
to the direction of travel (Fig. 15b).
6). File each tooth from the inside towards outside only. File one
side of the chain rst than turn the saw around and repeat the
process.
7). Sharpen each tooth equally by using the same number of
strokes.
8). 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 prole be restored.
9). 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 (Fig. 15c).
NOTE: A le guide is available from most reputable tool
merchants and is the easiest way to hold the le at the
correct position.
Sharpening
angle 25°
Left-hand cutter
File direction
Outside
Inside
Saw chain direction
Top plate
cutting tip
File position
Depth gauge
Depth gauge setting
0.025"
Cutter
lengty
Fig. 15b
Fig. 15c
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