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To clean the air filter
CAUTION: An air filter that is damaged,
very dirty, or soaked with fuel must always
be replaced.
Clean the air filter from dirt and dust regularly. This
prevents carburetor malfunctions, starting problems,
loss of engine power, wear to engine parts and more
fuel consumption than usual.
If you use an air filter for a long time, it cannot be fully
cleaned. Replace the air filter with a new one at regular
intervals. Refer to
Maintenance schedule on page 15
.
1. Move the choke lever up to close the choke valve.
2. Remove the air filter cover and the air filters.
3. Clean the air filters with warm soap water.
4. Replace the air filters if they cannot be fully cleaned.
Always replace a damaged air filter.
5. Clean the inner surface of the air filter cover. Use
compressed air or a brush.
6. Do a check of the rubber seal on the air filter.
Replace the air filter if the rubber seal is damaged.
7. Make sure that the air filter is dry before you install it.
Two piece-shaft
Apply grease to the end of the drive shaft after each 30
hours of operation. There is a risk that the drive shaft
ends (splined coupling) on models with two-piece shafts
will seize if they are not lubricated regularly.
To check the chain drive sprocket
1. Regularly check the degree of wear on the drive
sprocket. Replace if wear is excessive.
To examine the cutting equipment
1. Make sure that there are no cracks in rivets and
links and that no rivets are loose. Replace if it is
necessary.
2. Make sure that the saw chain is easy to bend.
Replace the saw chain if it is rigid.
3. Compare the saw chain with a new saw chain to
examine if the rivets and links are worn.
4. Replace the saw chain when the longest part of the
cutting tooth is less than 4 mm/0.16 in. Also replace
the saw chain if there are cracks on the cutters.
18
703 - 009 - 04.09.2023
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