Husqvarna 120 Mark II Operator's Manual page 22

4. File all the teeth to the same length. When the length
of the cutting teeth is reduced to 4 mm (5/32") the
saw chain is worn out and must be replaced.
A
To adjust the depth gauge setting
Sharpen the cutting teeth before you adjust the depth
To sharpen the cutting teeth on page
gauge setting. See
21 . When you sharpen the cutting tooth (A), the depth
gauge setting (C) will decrease. To maintain optimal
cutting performance, the depth gauge (B) has to be filed
down to achieve the recommended depth gauge setting.
See Saw chain filing and saw chain combinations on
page 26 to find the correct depth gauge setting for your
particular chain.
22
A
B
Note: This recommendation assumes that the length of
the cutting teeth is not reduced excessively.
Use a flat file and depth gauge tool to adjust the depth
gauge.
1. Put the depth gauge tool above the saw chain.
Detailed information regarding how to use the depth
gauge tool will be found on the package of the depth
gauge tool.
2. Use the flat file to file off the tip of the depth gauge
that protrudes through the depth gauge tool. The
depth gauge setting is correct when you no longer
feel resistance as you draw the file along the depth
gauge tool.
To tension the saw chain
Note: Check the tension of a new saw chain frequently
during its running-in period.
1. Loosen the guide bar nuts that hold the clutch cover.
Use the combination wrench.
C
2. Tighten the guide bar nuts by hand as tight as you
can.
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