Husqvarna 445 EPA III 用户手册

14 – English

115 13 81-96 Rev.3 2008-12-16

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Release the knob by folding it out.

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Turn the knob anti clockwise to loosen the bar cover.

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Adjust the tension on the chain by turning the wheel 
down (+) for tighter tension and up (-) to loosen the 
tension.

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Tighten the bar clutch by turning the knob clockwise.

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Fold the knob back in to lock the tensioning.

Chain oil must demonstrate good adhesion to the chain 
and also maintain its flow characteristics regardless of 
whether it is warm summer or cold winter weather.

As a chain saw manufacturer we have developed an 
optimal chain oil which has a vegetable oil base. We 
recommend the use of our own oil for both maximum 
chain life and to minimise environmental damage. If our 
own chain oil is not available, standard chain oil is 
recommended.

Never use waste oil!  Using waste oil can be dangerous 
to you and damage the machine and environment.

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All our chain saws have an automatic chain lubrication 
system. On some models the oil flow is also 
adjustable.

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The saw chain oil tank and the fuel tank are designed 
so that the fuel runs out before the saw chain oil.

However, this safety feature requires that you use the 
right sort of chain oil (if the oil is too thin it will run out 
before the fuel), and that you adjust the carburetor as 
recommended (a lean mixture may mean that the fuel 
lasts longer than the oil) and that you also use the 
recommended cutting equipment (a bar that is too 
long will use more chain oil).

IMPORTANT! When using vegetable based saw chain 
oil, dismantle and clean the groove in the bar and saw 
chain before long-term storage. Otherwise there is a risk 
of the saw chain oil oxidizing, which will result in the saw 
chain becoming stiff and the bar tip sprocket jamming.