Husqvarna 525P4S Operator's Manual page 16

Maintenance
Clean the outside of the spark plug. Remove it and do a check of the electrode
gap. Adjust the gap to the correct distance (refer to
on page 17 ) or replace the spark plug. Make sure that the spark plug is fitted
with a suppressor.
Clean the outside of the carburettor and the space around it.
File off any burrs from the edges of the bar.
Clean or replace the spark arrestor mesh on the muffler.
Clean the fuel tank.
Do a check of the fuel filter for contamination and the fuel hose for cracks or oth-
er defects. Replace if neccessary.
Do a check of all cables and connections.
Do a check of the clutch, clutch springs and the clutch drum for wear. Replace if
neccessary by an autorized service workshop.
Replace the spark plug. Make sure that the spark plug is fitted with a suppres-
sor.
To adjust the idle speed
1. Make sure that the air filter is clean and the air filter
cover is attached before you adjust the idle speed.
2. Start the product. Refer to
page 14
3. Adjust the idle speed with the idle adjustment screw
T which is identified with "T" mark. Turn the idle
adjustment screw clockwise until the saw chain
starts to turn.
4. Turn the idle adjustment screw counterclockwise
until the saw chain stops.
The idle speed is correct when the engine operates
smoothly in all positions. The idle speed must be below
the speed when the saw chain starts to turn.
WARNING: If the saw chain does not stop
when you adjust the idle speed, turn to your
nearest servicing dealer. Do not use the
product until it is correctly adjusted or
repaired.
16
To examine the spark plug
To start the product on
Technical data on page 24 for the
Note: Refer to
recommended idle speed.
To do maintenance on the muffler
The muffler decreases the noise level and directs the
exhaust gases away from the operator.
WARNING: Mufflers that have catalytic
converters get very hot during operation and
will stay hot for some time after you stop the
product. This also applies at idle speed. If
you touch the product it can result in burns
to the skin. Think about of the risk of fire.
1. Stop the product and let it cool down.
2. Remove the cover to the muffler.
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