Husqvarna 346XP EPA II 用户手册

12 – 

English

4

Round file diameter

5

File depth

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 the Technical data section for information about 
sharpening your chain.

To sharpen cutting teeth you will need a round file and a file 
gauge. See the Technical data section 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 over 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 4 mm (0.16") the chain is 
worn out and should be replaced.

•

When you sharpen the cutting teeth you reduce the raker 
clearance (=cutting depth). To maintain optimal cutting 
performance you must file back the raker lip to the 
recommended height. 

See the Technical data section to find the raker clearance 
for your particular chain.

•

On a low-kickback cutting link the front edge of the raker 
lip is rounded. It is very important that you maintain this 
radius or bevel when you adjust the raker clearance.

•

We recommend that you use our raker gauge to achieve 
the correct clearance and bevel on the raker lip.

•

Before setting the raker clearance the cutting teeth should 
be newly sharpened. We recommend that you adjust the 
raker clearance every third time you sharpen the chain. 
NOTE! This recommendation assumes that the length of 
the cutting teeth is not reduced excessively.