Husqvarna 120iTK4-P Operator's Manual page 18

• Drive link width, mm/in.
General information about how to sharpen the
cutters
Do not use a blunt saw chain. If the saw chain is blunt,
you must apply more pressure to push the guide bar
through the wood. If the saw chain is very blunt, there
will be no wood chips but sawdust.
A sharp saw chain eats through the wood and the wood
chips becomes long and thick.
The cutting tooth (A) and the depth gauge (B) together
makes the cutting part of the saw chain, the cutter. The
difference in height between the two gives the cutting
depth (depth gauge setting).
When you sharpen the cutter, think about the following:
• Filing angle.
• Cutting angle.
• File position.
18
A
B
• Round file diameter.
It is not easy to sharpen a saw chain correctly without
the correct equipment. Use Husqvarna file gauge. This
will help you to keep maximum cutting performance and
the kickback risk at a minimum.
WARNING:
increases a lot if you do not follow the
sharpening instructions.
Note:
To sharpen the cutters on page 18 for
Refer to
information about sharpening of the saw chain.
To sharpen the cutters
1. Use a round file and a file gauge to sharpen the
cutting teeth.
Note:
Accessories on page 24 for
Refer to
information about which file and gauge that
Husqvarna recommends for your saw chain.
2. Apply the file gauge correctly on to the cutter. Refer
to the instruction supplied with the file gauge.
3. Move the file from the inner side of the cutting teeth
and out. Decrease the pressure on the pull stroke.
4. Remove material from one side of all the cutting
teeth.
5. Turn the product around and remove material on the
other side.
The force of the kickback
1636 - 003 - 06.04.2021