operation manual

GB
66 CS 4030
Maintenance and care
8.1 Sharpening the saw chain (13)
DANGER!
Danger of fatal injury
due to kickback!
The operator can be fatally
injured by kickback of the
chain saw.
■
Sharpen the saw chain
properly.
CAUTION!
Danger of injury from the
saw chain!
The sharp edges of the
saw chain can cause seri-
ous laceration injuries.
■
Wear protective gloves
when resharpening the
saw chain.
IMPORTANT!
Damage to the machine
due to incorrect sharp-
ening!
Uneven cutting teeth mean
that the chain runs roughly
and may even break. All
cutting teeth must have the
same length and width af-
ter sharpening.
■
Sharpen the saw chain
properly.
NOTE
Inexperienced chain saw operators are
recommended to have the saw chain
sharpened by a specialist at the custom-
er service.
Do not work with a blunt or damaged saw chain.
The consequences include physical strain, a poor
cutting result and high levels of chain wear.
To achieve an optimum cutting result, it is neces-
sary for the saw chain to be resharpened at regu-
lar intervals.
A correctly sharpened saw chain reduces the
danger of kickback and prevents high levels of
wear.
Sharpening is required if:
■
The saw chips are like sawdust.
■
Greater force is necessary for cutting.
■
The cut is not straight.
■
Vibration increases.
■
Fuel consumption increases.
To sharpen the chain:
1. Switch off the chain saw and remove the re-
chargeable battery.
2. Check the chain tension and adjust it if nec-
essary.
3. Only use a suitable tool for sharpening:
Round chain file Ø = 4.0 mm, file guide,
chain gauge.
These tools are available from specialist re-
tailers.
4. The individual chain links consist of a saw
link (13/3), saw tooth (13/1) and a depth limit-
er (13/2).
5. Guide the file from the inside to the outside of
the cutting tooth, exerting slight pressure and
holding it perpendicular (13). A file guide is
helpful for handling the file correctly. 2 – 3 file
strokes are sufficient.
6. When sharpening, maintain the angles (13)
on the cutting tooth and the height of the
depth limiter (13/2) in relation to the cutter.
Make sure that all cutting teeth on the chain
have equally length and width after sharpen-
ing.
7. If using the prescribed tools and the correct
handling, the specified angle values will be
obtained automatically. The values can be
checked with a chain gauge.
8. At the end, slightly round off the front part of
the depth limiter (13/2).