Craftsman 580.768040 - Manual (Page 13)

ENGINE MAINTENANCE
Maintenance, replacement or repair of the
emission control devices and systems may be
performed by any non-road engine repair
establishment or individual.
Checking Oil Level
Oil level should be checked prior to each use or at
least every
8 hours of operation. Keep oil level
maintained.
Changing Oil
Change engine oil after the first 5 hours and every 50
hours thereafter. If you are using your cleaning system
under extremely dirty or dusty conditions, or in
extremely hot weather, change oil more often.
Change oil while engine is still warm from running, as
follows;
• Place a suitable container for draining oil beneath
the engine.
• Clean area around oil drain plug, remove plug and
drain oil completely. When crankcase is empty,
reinstall oil drain plug.
Oil Drain Plug
• Clean area around oil fill plug and remove the oil fill
plug. Fill engine crankcase with recommended oil
until oil level is up to, but not past, the point of
overflowing. POUR SLOWLY.
• When engine crankcase is filled to proper level,
install and tighten oil fill plug.
Service Dual Element Air Cleaner
Your engine will not run properly and may be
damaged if you run it with a dirty dual element air
cleaner.
Replace the pre-cleaner and/or cartridge if very
dirty or damaged. Replacements are available at
your local Sears Authorized Service Center.
To service the air cleaner, follow these steps:
• Loosen screw and tilt cover down. Remove the
pre-cleaner and cartridge assembly.
• Wash pre-cleaner in liquid detergent and water.
Squeeze dry in a clean cloth and allow to dry
thoroughly. DO NOT oil pre-cleaner.
• Gently tap cartridge on a flat senrice to clean. DO
NOT oil cartridge.
• Clean inside of filter case.
• Place pre-cleaner over cartridge pleats
(pre-cleaner lip will be at bottom of pleats).
• Install pre-cleaner and cartridge assembly in
cover.
• Insert tabs on cover into slots in bottom of base.
• Tilt cover up and tighten cover securely.
Clean / Replace Spark Plug
Clean or replace the spark plug yearly or every 100
hours of operation.
A CAUTION! Disconnect spark plug wire from
spark plug and keep wire away from spark plug.
Clean area around spark plug.
Remove and inspect spark plug.
Replace spark plug if the electrodes are pitted,
burned or porcelain is cracked. For replacement
use P/N 491055.
Check electrode gap with wire feeler gauge and set
gap at .030 inches, if necessary.
Carburetor
If you think your carburetor needs adjusting, see your
nearest Sears Service Center. Engine performance
may be affected at altitudes above 4000 feet. For
operation at higher elevations, contact your nearest
Sears Service Center.
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