Craftsman 247.881700 Operator's Manual

Also see for 247.881700: Operator's manual

16MAINTENANCE & SERVICECAUTIONUsed oil is a hazardous waste product. Dispose of used oil properly.Do not discard with household waste. Check with your local authori-ties or Sears Service Center for safe disposal/recycling facilities.5. Reinstall the drain plug and tighten it securely.6. Refill with the recommended oil and check the oil level. SeeRecommended Oil Usage chart. The engine’s oil capacity is 20ounces.-30º -20º -10º 0º0º 20º 40º-20º5W-300W-30-40ºSyntheticCAUTIONDO NOT use non-detergent oil or 2-stroke engine oil. It could shortenthe engine’s service life.7. Reinstall the oil filler cap/dipstick securely.CAUTIONThoroughly wash your hands with soap and water as soon aspossible after handling used oil.Checking Spark PlugWARNINGDO NOT check for spark with spark plug removed. DO NOT crankengine with spark plug removed.WARNINGIf the engine has been running, the muffler will be very hot. Be carefulnot to touch the muffler.NOTE: Check the spark plug once a season or every 25 hours ofoperation. Change the spark plug once a season or every 100 hours.To ensure proper engine operation, the spark plug must be properlygapped and free of deposits.1. Remove the spark plug boot and use a spark plug wrench toremove the plug. See Figure 13.2. Visually inspect the spark plug. Discard the spark plug if there isapparent wear, or if the insulator is cracked or chipped. Clean thespark plug with a wire brush if it is to be reused.3. Measure the plug gap with a feeler gauge. Correct as necessaryby bending side electrode. See Figure 14. The gap should be setto .02-.03 inches (0.60-0.80 mm).4. Check that the spark plug washer is in good condition and threadthe spark plug in by hand to prevent cross-threading.5. After the spark plug is seated, tighten with a spark plug wrench tocompress the washer.Figure 12Oil DrainPlugFigure 14.02-.03 in.(0.60-0.80 mm)ElectrodeFigure 13Spark PlugSpark Plug Boot