Husqvarna 120i Manuel D'utilisation page 22

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Bar groove width, in/mm. The groove width in guide
bar must be the same as the chain drive links width.
(Fig. 108)
Chain oil hole and hole for chain tensioner. The
guide bar must align with product.(Fig. 109)
Drive link width, mm/in.(Fig. 110)
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).(Fig. 111)
When you sharpen the cutter, think about the following:
Filing angle.(Fig. 112)
Cutting angle.(Fig. 113)
File position.(Fig. 114)
Round file diameter.(Fig. 115)
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 cutters 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. 116)
Accessories on page 26 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. 117)
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.
22
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 26 for
gauge setting. See
instructions about how to receive the correct depth
gauge setting for your saw chain.
(Fig. 118)
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 22 ,
the cutters, refer to
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. 119)
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. 120)
To tighten the saw chain
WARNING: A saw chain without the correct
tension can come loose from the guide bar
and cause serious injury or death.
The more you use a saw chain the longer it becomes. It
is important to adjust the saw chain regularly.
Do a check of the saw chain tension each time you refill
with chain oil.
Note: A new saw chain has a running-in period during
which you must do a check of the tension more
frequently.
1. Fold the knob out until it opens. (Fig. 121)
2. Turn the knob counterclockwise to loosen the drive
sprocket cover. (Fig. 122)
1259 - 002 - 15.07.2020

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