Storing The Machine; Checking And Replacing The Chain Sprocket - Stihl MS 251 Manual De Instrucciones

Fit the rope rotor and tension the
N
rewind spring.
Fit the fan housing and shroud.
N
MS 251, MS 251 C

Storing the Machine

For periods of 3 months or longer
Drain and clean the fuel tank in a
N
well ventilated area.
Dispose of fuel properly in
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accordance with local
environmental requirements.
Run the engine until the carburetor
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is dry – this helps prevent the
carburetor diaphragms sticking
together.
Remove the saw chain and guide
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bar, clean them and spray with
corrosion inhibiting oil.
Thoroughly clean the machine – pay
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special attention to the cylinder fins
and air filter.
If you use a biological chain and bar
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lubricant, e.g. STIHL BioPlus,
completely fill the chain oil tank.
Store the machine in a dry, high or
N
locked location, out of the reach of
children and other unauthorized
persons.
Checking and Replacing the
Chain Sprocket
Remove chain sprocket cover, saw
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chain and guide bar.
Release chain brake – pull hand
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guard against the front handle
Fit new chain sprocket
after use of two saw chains or
–
earlier
if the wear marks (arrows) are
–
deeper than 0.02 in (0.5 mm) –
otherwise the service life of the saw
chain is reduced – use check gauge
(special accessory) to test
Using two saw chains in alternation
helps preserve the chain sprocket.
Use only STIHL original chain sprockets
to help ensure reliable functioning of the
chain brake.
English
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