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A
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Clean the external surfaces of the carburetor and
its adjacent areas.
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Clean the air filter. Install a new air filter if it is
damaged or too dirty to be fully cleaned. See
clean the air filter on page 19 for more
information.
Monthly maintenance
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Examine the brake band on the chain brake for
wear. Replace when the brake band thickness is
less than 0.6 mm (0.024 in) at the most worn
point.
C
D
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Examine the clutch center, clutch drum and
clutch spring for wear.
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Clean the spark plug. Make sure that the
electrode gap is correct.
18
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Clean the external surfaces of the carburetor and
its adjacent areas.
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Examine the fuel filter and the fuel hose. Replace
if necessary.
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Empty the fuel tank.
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Empty the oil tank.
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Examine all cables and connections.
Yearly maintenance
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Examine the spark plug.
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Clean the external surfaces of the carburetor and
its adjacent areas.
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Clean the cooling system.
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Examine the spark arrester mesh.
To
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Examine the fuel filter.
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Examine the fuel hose for damage.
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Examine all cables and connections.
Intermittent maintenance
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Have an approved service center repair or
replace the muffler after 50 hours of operation.
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Do maintenance on the spark plug when:
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the power level in the engine is low.
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it is hard to start the engine.
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the engine does not work correctly at idle
speed.
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Do a check of the saw chain lubrication each
time you refuel. See
chain lubrication on page 21 .
To adjust the idle speed
Make sure that the air filter is clean and the air filter
cover is attached before you adjust the idle speed.
1. Turn the idle adjustment screw, which is
identified with a "T" mark, clockwise until the saw
chain starts to turn.
2. Turn the idle adjustment screw, which is
identified with a "T" mark, counterclockwise until
the saw chain stops.
3. The idle speed must be below the speed when
the saw chain starts to turn. The idle speed is
correct when the engine operates smoothly in all
positions.
To clean the spark arrester screen
1. Use a wire brush to clean the spark arrester
screen.
To do a check of the saw
654 - 005 - 21.10.2019
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