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Sharpening the saw chain
An incorrectly sharpened
saw chain increases the dan-
ger of spring-back!
Use cut-protection gloves
when you are handling the
chain or the chain bar.
A sharp chain guarantees an op-
timal cutting performance. It eats
effortlessly through the wood and
leaves large, long wooden chips.
A saw chain is blunt if you have to
press the cutting equipment through
the wood and the wooden chips
are very small. In the case of a very
blunt saw chain, no chip cuttings
result at all, only sawdust.
• The sawing parts of the chain are the
cutting elements, which consist of a cut-
ting tooth and a depth limiting projec-
tion. The vertical separation distance
between these two determines the
sharpness depth.
• The following values must be noted in
sharpening the cutting teeth:
- Sharp edge angle (30°)
G
- Breast angle (85°)
- Sharpness depth (0.65 mm)
Deviations from the meas-
urement data of the cutting
geometry can lead to an
increase of the spring-back
slope of the machine. In-
creased danger of accident!
Sharpening a saw chain requires some
practice. In addition, special tools are
required to sharpen the saw chain that
48
ensure that the chain is sharpened at the
correct angle and depth. Proceed following
the instructions for your saw chain sharpen-
er (e.g. Parkside PSG 85 B2). For inexpe-
rienced chainsaw users, we recommend
having the saw chain sharpened or chain
re-placed by an expert or a specialist
workshop.
1. Switch the saw off and unplug it
H
from the mains.
2. Remove the saw chain (refer to the
section on operating the saw). The
chain should be well-tensioned to
ensure proper sharpening.
3. For the sharpening, a round fi le
with 4.0 mm diameter is neces-
sary.
Other diameters damage the
chain and can lead to danger
during work!
4. Sharpen only from the inside to the out-
side. Guide the fi le from the inner side
of the cutting teeth to the outer side. Lift
the fi le when you are withdrawing it.
5. Sharpen fi rst the teeth on one side.
Then fl ip over the chain saw and sharp-
en the teeth on the other side.
6. The chain is worn and must be replaced
by a new saw chain if only approx. 4
mm of the cutting teeth is remaining.
7. After the sharpening, all cutting elements
must now be equal in length and width.
8. After every third sharpening, the sharp-
ness depth (depth limitation) must be
checked and the height fi led with the
aid of a fl at fi le. The depth limitation
should be set back about 0.65 mm
from the cutting tooth. After the setting
back of depth limitation, round it off a
little at the front.
