Craftsman 580.753410 Owner's Manual page 17

Service Air Cleaner
Your engine will not run properly and may be
damaged if you run it with a dirty air cleaner.
Clean the air cleaner once every 50 hours of operation
or 3 months, whichever comes first. Service more
often if operating under dirty or dusty conditions.
Replace the paper filter element once every 300 hours
or once a year, whichever comes first. Replacements
are available at your local Sears service center.
To service the air cleaner, follow these steps:
1. Remove wing nut from air cleaner cover, and
remove cover.
aper Filter
Element
Foam Filter
Element
6
8. Place foam air filter element over paper element
and reinstall assembled air filter. Be sure gasket is
in place beneath air filter. Tighten air filter wing nut
securely.
9. Install air cleaner cover and tighten cover wing nut
securely.
NOTE: You can purchase new air filter elements by
calling 1-800-366-PART.
Service Spark Plug
Check and adjust the spark plug every 100 hours of
operation or yearly, whichever occurs first. Replace
the spark plug every 300 hours of operation or yearly,
whichever occurs first.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Replace spark plug if electrodes are worn, or if
insulator is cracked or chipped.
4. Check electrode gap with wire feeler gauge and
set gap at 0.028-0.031 inches (0.70-0.80 mm), if
necessary.
2. Remove wing nut from air filter, and remove filter.
3. Remove foam filter from paper filter.
4. Inspect both air filter elements. Replace if damaged.
5. Clean paper air filter element by tapping filter on a
hard surface to remove dirt, or blow compressed
air (not exceeding 30 psi) through filter element
from inside.
IMPORTANT: NEVER try to brush off dirt; brushing
will force dirt into fibers.
6. Clean foam air filter element in warm soapy water,
rinse and allow to dry thoroughly. Or clean in
nonflammable solvent and allow to dry. Dip foam
filter element in clean engine oil, then squeeze out
all excess oil.
IMPORTANT: Engine will smoke when started if too
much oil is left in foam.
7. Using a moist rag, wipe dirt from inside of air
cleaner base and cover. Be careful to prevent dirt
from entering air duct that leads to the carburetor.
5. Install spark plug, tighten securely.
NOTE: You can purchase a new spark plug by calling
1-800-366-PART.
Carburetor
If you think your carburetor needs adjusting, see your
nearest Sears service center. Engine performance
may be affected at altitudes above 5000 feet. For
operation at higher elevations, contact your nearest
Sears service center.
Spark Arrester Service
Your engine is not factoryzequipped with a spark
attester. In some areas, it is illegal to operate an
engine without a spark arrester. Check local laws and
regulations. A spark arrester is available from your
nearest Sears service center. If you need to order a
spark attester, please call 1-800-366-PART.
The spark arrester must be serviced every 100 hours
to keep it functioning as designed.
If the engine has been running, the muffler will be very
hot. Allow the muffler to cool before servicing the
spark arrester.
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