Husqvarna 345 User Manual

12 – 

English

When you sharpen a cutting tooth there are four important 
factors to remember.

1

Filing angle

2

Cutting angle

3

File position

4

Round file diameter

It is very difficult to sharpen a chain correctly without the right 
equipment. We recommend that you use our file gauge. This 
will help you obtain the maximum kickback reduction and 
cutting performance from your chain.

See instructions under the heading Technical data for 
information about sharpening your chain.

To sharpen cutting teeth you will need a round file and a file 
gauge. See instructions under the heading Technical data for 
information on the size of file and gauge that are 
recommended for the chain fitted to your chain saw.

•

Check that the chain is correctly tensioned. A slack chain 
will move sideways, making it more difficult to sharpen 
correctly.

•

Always file cutting teeth from the inside face. Reduce the 
pressure on the return stroke. File all the teeth on one side first, 
then turn the chain saw and file the teeth on the other side.

•

File all the teeth to the same length. When the length of 
the cutting teeth is reduced to 0.16 inch (4 mm) the chain 
is worn out and should be replaced.

•

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 
instructions under the heading Technical data to find the 
correct depth gauge setting for your particular chain.

•

The cutting teeth should be newly sharpened before 
adjusting the depth gauge setting. We recommend that you 
adjust the depth gauge setting every third time you sharpen 
the cutting teeth. NOTE! This recommendation assumes that 
the length of the cutting teeth is not reduced excessively.

•

You will need a flat file and a depth gauge tool. We 
recommend that you use our depth gauge tool to acheive the 
correct depth gauge setting and bevel for the depth gauge.

•

Place the depth gauge tool over the chain. Detailed 
information regarding the use of the depth gauge tool, will 
be found on the package for the depth gauge tool. 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.