Справочник Пользователя для Zenoah GZ7000

English

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 11

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Never use a blunt chain. When the chain is blunt you 
have to exert more pressure to force the bar through 
the wood and the chips will be very small. If the chain 
is very blunt it will produce wood powder and no chips 
or shavings.

•

A sharp chain eats its way through the wood and 
produces long, thick chips or shavings.

•

The cutting part of the chain is called the cutting link 
and this consists of a cutting tooth (A) and the raker lip 
(B). The cutting depth (C) is determined by the 
difference in height between the two.

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 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 (5/32") the 
chain is worn out and should be replaced.