Craftsman 247.34625 Owner's Manual

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Your four-cycle engine will normally consume someoil; therefore, check engine oil level regularly--approximately every five hours of operation andbefore each usage. Stop engine and wait severalminutes before checking oil level. With engine level,the oil must be to the FULL mark on dipstick (refer tofigure 11). Change engine oil after the first five hoursof operation, and every twenty-five hours thereafter.Retainer Cover ,aseSlotPre-CleanerTo Drain Oil:• Drain oil while engine is warm,a, Remove oil drain plug. Catch oil in a suitablecontainer.b. When engine is drained of all oil, replace drainplug securely.• Refill with fresh oil. Refer to GAS AND OIL FILL-UP section.• Replace dipstick.AIR CLEANERThe air cleaner prevents damaging dirt, dust, etc.,from entering the carburetor and being forced into theengine and is important to engine life and per-formance.Never run your engine without air cleaner com-pletely assembled.To Service Air Cleaner:Service pre-cleaner after every 25 hours of use, or atleast once a season. Service cartridge every 100 hoursof use, or at least once a season. Service pre-cleanerand cartridge more often under dusty conditions.• Loosen air cleaner cover screws. Remove coverand air cleaner assembly from base. See figure 15.• Remove air cleaner assembly from inside coverand disassemble.• To service foam pre-cleaner: Remove pre-cleaner.Wash in liquid detergent and water. Squeeze dry ina clean cloth. Saturate in engine oil. Squeeze in aclean, absorbent cloth to remove all excess oil. Ifpre-cleaner is very dirty, replace it.• To service cartridge: Clean by tapping gently on aflat surface, tf very dirty, replace. Do not oi! cartridge.NOTE: Do not use petroleum solvents (e.g. kerosene)or pressurized air to clean cartridge. They will causecartridge to deteriorate.• Reassemble retainer on pre-cleaner and cartridge(screen side of pre-cleaner toward cartridgepleats). Place assembly into cover.• Insert tabs on cover into slots in base and tightencover screws securely.14CoverScrewsFIGURE 15.CLEAN ENGINEClean engine periodically. Remove dirt and debriswith a cloth or brush. Cleaning with a forceful spray ofwater is not recommended as water could contami-nate the fuel system.Yearly or every 25 hours, whichever occurs first,remove the blower housing and clean the areasshown in figure 16 to avoid overspeeding, overheatingand engine damage. Clean more often if necessary.WARNING: PERIODICALLY CLEAN MUF-FLER AREA TO REMOVE ALL GRASS,DIRT AND COMBUSTIBLE DEBRIS.Clean OutandDirtFIGURE 16.SPARK PLUGThe spark plug should be cleaned and the gap resetto .030" at least once a season or every 50 hours ofoperation. See figure 17. Spark plug replacement isrecommended at the start of each season. Refer toengine parts list for correct spark plug type.NOTE: Do not sandblast spark plug. Spark plugshould be cleaned by scraping or wire brushing andwashing with a commercial solvent..030" Feeler GaugeFIGURE 17.Spark Plug