15 ENGLISH
Sharpening the saw chain
Sharpen the saw chain when:
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(caused by uneven sharpening of the saw chain or
damage to one side only)
Sharpen the saw chain frequently but a little each time.
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resharpened several times, have it sharpened in our
authorized service center.
Sharpening criteria:
WARNING:
An excessive distance between
the cutting edge and depth gauge increases the
risk of kickback.
2
2
1
1
3
1
Ź
1.
Cutter length
2.
Distance between cutting edge
and depth gauge
3.
Minimum cutter length (3 mm)
—
All cutter length must be equal. Different cutter
lengths prevent the saw chain from running
smoothly and may cause the saw chain to break.
—
Do not sharpen the chain when the cutter length
has reached 3 mm or shorter. The chain must be
replaced with new one.
—
The chip thickness is determined by the distance between
the depth gauge (round nose) and the cutting edge.
—
The best cutting results are obtained with following
distance between cutting edge and depth gauge.
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30
30
55
55
—
The sharpening angle of 30° must be the same on all cut-
ters. Different cutter angles cause the chain to run roughly
and unevenly, accelerate wear, and lead to chain breaks.
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-
ening angle is kept against the teeth.
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saw chains to sharpen the chain. Normal round
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follows:
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²
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of this shortest cutter becomes the standard for all
other cutters on the saw chain.
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1
2
Ź
1.
File
2.
Saw chain
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has markings for the correct sharpening angle of
30° (align the markings parallel to the saw chain)
and limits the depth of penetration (to 4/5 of the
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30
1/5
1
Ź
1.
File holder
—
After sharpening the chain, check the height of the
depth gauge using the chain gauge tool (optional
accessory).