Husqvarna P 520D 用户手册

24 – 

English

The main filter has a paper insert that is changed as follows.

1

Open the engine cover.

2

Unscrew the filter cover and remove the paper filter.

If the engine seems to lack power or does not run smoothly 
this may be because the air filter is clogged. When driving 
with a dirty air filter the engine can suffer from lack of air, so 
that it does not meet environmental requirements and the 
engine does not provide full power.

Squeeze so that the rubber tabs open and the particles can 
escape.

Loosen the two fasteners holding the filter cover and remove 
it.

Clean the inside of the lid. It can be washed with soapy water 
and blown with compressed air when the lid is removed.

Replace the air filter cover, ensure that the particle collector 
is facing downwards.

If the engine seems to lack power or does not run smoothly 
this may be because the air filter is clogged. It is therefore 
important to replace the air filter at regular intervals (see 
Maintenance/Maintenance Schedule for the correct service 
interval).

Replace the air filter as follows:

•

Open the engine cover.

•

Loosen the two fasteners holding the filter cover and 
remove it.

•

Remove the filter cartridge from the filter housing.

•

Wipe clean the interior of the air filter housing. If 
necessary, the cleaning cloth should be moistened with 
white spirit or fuel. Water or compressed air should not be 
used.

•

Clean the filter by knocking it with care against a hard 
surface. Do not use compressed air to clean the filter. 
Replace the air filter if it is still dirty.

3

Fit a new air filter cartridge with the hole inward and press 
it into place.

4

Replace the air filter cover, ensure that the particle 
collector is facing downwards.

Keep the engine and muffler free from grass cuttings and dirt.  
Clipping debris soaked in fuel or oil on the engine means 
increased risk of fire and impaired cooling.

Allow the engine to cool before cleaning. If the dirt is mixed 
with oil, remove it using a degreasing agent otherwise just 
water and a brush.

Grass cuttings around the muffler dry quickly and constitute a 
fire risk. Brush or wash them off when the muffler is cold.

Never run the engine without the air filter fitted.

Poorly filtered inlet air is a main factor contributing to engine 
wear. Replace the air filter according to the service 
schedule or more often in dusty conditions

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