Check The Battery; Replacement Of Fuel Filter; Replacing The Air Filter - Husqvarna P 520D Operator's Manual

Check the battery

WARNING! Lead-acid batteries produce
!
explosive gases. Avoid sparks, open flames
and smoking close to batteries.
Always wear protective glasses in the
vicinity of batteries.
The machine is equipped with a maintenance-free battery.
The battery has a service window showing different colours.
• White = Charge battery
• Green = OK.
• Red = Change battery.
Clean the battery and holder with soap/water solution.
A discarded or replacement battery should be handled as
hazardous waste.
Replacement of fuel filter
P520 D, P525 D has two fuel filters. A pre-filter and main filter.
Replace the fuel filter every 100 hours (at least once per
season) or more often if it is clogged.
The pre-filter is located under the battery box and is replaced
as follows.
1 Open the engine cover.
2 Loosen the hose clips
3 Move the hose clips away from the filter. Use a pair of flat
pliers.
4 Pull off the filter from the hose ends.
5 Press the new filter into the ends of the hoses.
6 Push the hose clips back on the filter and tighten.
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.
MAINTENANCE AND SERVICE
Replacing the air filter
WARNING! The exhaust system is hot. Let it
!
cool before starting to replace the air filter.
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:
1 Open the engine cover.
2 Loosen the two fasteners holding the filter cover and
remove it.
IMPORTANT!
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.
3 Remove the filter cartridge from the filter housing.
4 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.
5 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.
6 Fit a new air filter cartridge with the hole inward and press
it into place.
7 Replace the air filter cover, ensure that the particle
collector is facing downwards.
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English