To Adjust The Tension Of The Saw Chain; To Do A Check Of The Saw Chain Lubrication - Husqvarna 120 Manual De Usuario

• Cutting angle.
(Fig. 108)
• File position.
(Fig. 109)
• Round file diameter.
(Fig. 110)
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: The force of the kickback
increases a lot if you do not follow the
sharpening instructions.
To sharpen the saw chain on page 22 for
Note: 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. (Fig. 111)
Accessories on page 27 for
Note: 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.
(Fig. 112)
4. Remove material from one side of all the cutting
teeth.
5. Turn the product around and remove material on the
other side.
6. Make sure that all cutting teeth are the same length.
General information about how to adjust the
depth gauge setting
The depth gauge setting (C) decreases when you
sharpen the cutting tooth (A). To keep maximum cutting
performance you must remove filing material from the
depth gauge (B) to receive the recommended depth
Accessories on page 27 for
gauge setting. See
instructions about how to receive the correct depth
gauge setting for your saw chain.
(Fig. 113)
WARNING: The risk of kickback increases if
the depth gauge setting is too large!
To adjust the depth gauge setting
Before you adjust the depth gauge setting or sharpen
To sharpen the cutters on page 23 ,
the cutters, refer to
930 - 003 - 06.03.2019
for instructions. We recommend you to adjust the depth
gauge setting after each third operation that you
sharpen the cutting teeth.
We recommend that you use our depth gauge tool to
receive the correct depth gauge setting and bevel for the
depth gauge.
(Fig. 114)
1. Use a flat file and a depth gauge tool to adjust the
depth gauge setting. Only use Husqvarna depth
gauge tool to get the correct depth gauge setting and
bevel for the depth gauge.
2. Put the depth gauge tool on the saw chain.
Note: See the package of the depth gauge tool for
more information about how to use the tool.
3. Use the flat file to remove the part of the depth
gauge that extends through the depth gauge tool.
(Fig. 115)

To adjust the tension of the saw chain

WARNING: A saw chain with an incorrect
tension can come loose from the guide bar
and cause serious injury or death.
A saw chain becomes longer when you use it. Adjust the
saw chain regularly.
1. Loosen the bar nuts that hold the clutch cover/chain
brake. Use the combination wrench. (Fig. 116)
Note: Some models have only one bar nut.
2. Tighten the bar nuts by hand as tightly as you can.
3. Lift the front of the guide bar and turn the chain
tensioning screw. Use the combination wrench.
4. Tighten the saw chain until it is tight against the
guide bar but still can move easily. (Fig. 117)
5. Tighten the bar nut using the combination wrench
and lift the front of the guide bar at the same time.
(Fig. 118)
6. Make sure you can pull the saw chain around freely
by hand and that it does not hang from the guide
bar. (Fig. 119)
Product overview on page 8 for the
Note: Refer to
position of the chain tensioning screw on your product.
To do a check of the saw chain
lubrication
1. Start the product and let it operate at ¾ throttle. Hold
the bar approximately 20 cm/8 in above a surface of
light color.
2. If the saw chain lubrication is correct, you see a clear
line of oil on the surface after 1 minute. (Fig. 120)
3. If the saw chain lubrication does not operate
correctly, do a check of the guide bar. Refer to
To do
23