Husqvarna Pro 18 manual Maintenance

MAINTENANCE

Replacing the air filter Pro 18

If the engine seems to lack power or does not run smoothly this may be because the air filter is clogged. If run with a soiled air filter, carbon can build-up on the spark plugs and lead to malfunctioning.

It is therefore important to replace the air filter at regular intervals (see ”Maintenance schedule” for correct service interval).

WARNING!

Let the muffler system cool down before carrying out service work. Otherwise there is a risk of burns.

Clean/ replace the air filter as follows:

1. Release the rubber strap under the seat and raise the engine hood.

IMPORTANT INFORMATION

Never run the engine without the muffler fitted.

Do not use compressed air to clean the paper filter. Do not wash the paper filter.

The filters must not be oiled. They must be fitted dry.

2.Fold out the two snap-locks and lift off the cover on the air filter housing.

3.Pull off the foam plastic pre-filter from the paper

filter and wash clean in mild detergent.

Squeeze it dry in a clean cloth.

Drench it with new engine oil. Wrap the filter in an absorbent cloth and squeeze out excess oil.

4.Unscrew the wing nut from the air filter and lift out the paper filter. Tap the filter against a hard surface to shake off the dust. If the paper filter is still dirty it should be replaced.

5.Refit the air filter as follows:

Insert the paper filter in the air filter housing and tighten the wing nut.

6.Fit the pre-filter over the rectangular section of the paper filter.

7. Refit the cover on the air filter housing. Bring up the cover from below and make sure the pre- filter does not drop out of place. Secure with the two clips.

38 – English