Poulan Pro PR5020 Instruction Manual page 15

CLEANING THE SPARK ARRESTING
SCREEN
cover.
3. Loosen 3 screws on cylinder cover.
Remove the cylinder cover.
4.
Remove spark arresting screen. Handle screen
carefully to prevent damage.
6. Clean the spark arresting screen gently with a wire
brush. Replace screen if breaks are found.
7.
Reinstall spark arresting screen.
9.
Reinstall the cylinder cover and 3 screws. Tighten
securely.
REPLACE SPARK PLUG
The spark plug should be replaced each year to
ensure the engine starts easier and runs better.
cover.
Pull off the spark plug boot.
3. Remove spark plug from cylinder and discard.
4.
securely with a socket wrench.
Reinstall the spark plug boot.
6.
CARBURETOR ADJUSTMENT
a WARNING: The chain will be moving
during most of this procedure. Wear your
protective equipment and observe all safety
precautions. The chain must not move at idle
speed.
The carburetor has been carefully set at the factory.
Adjustments may be necessary if you notice any of the
following conditions:
Chain moves at idle. See IDLE SPEED-T adjustment
procedure.
Saw will not idle. See IDLE SPEED-T adjustment
procedure.
Idle Speed-T
Allow engine to idle. If the chain moves, idle is too fast.
If the engine stalls, idle is too slow. Adjust speed until
in the area above the primer bulb and is labeled T.
speed.
engine speed.
If you require further assistance or are unsure about
performing this procedure, contact your authorized
service dealer or call customer support.
COOLING SYSTEM
To keep the working temperature as low as possible
the machine is equipped with a cooling system.
The cooling system consists of:
Air intake on the starter
Air guide plate
Clean the cooling system with a brush after each use,
more often in demanding conditions. A dirty or blocked
cooling system results in the machine overheating
which causes damage to the piston and cylinder.
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