20SERVICE AND MAINTENANCE2. With engine OFF but still warm, disconnect spark plug wire andkeep it away from spark plug.3. Remove oil drain cap located at the end of the oil drain pipe , anddrain oil into an appropriate receptacle. See Figure 26.Oil Drain CapOil Drain PipeFigure 26WARNINGUsed oil is a hazardous waste product. Dispose of used oil properlyDo not discard with household waste. Check with your local authori-ties or Sears Service Center for safe disposal/recycling facilities.4. Replace and tighten the oil drain cap.5. When engine is drained of all oil, place engine level. Refill with ap-proximately 20 oz. of fresh oil. Fill to FULL line on dipstick. Do notoverfill. Refer to Check and Adding Oil in this manuals Assemblysection.6. Replace spark plug wire before starting.Transmission LubricationThe transmission is pre-lubricated and sealed at the factory. It requiresno checking unless the transmission is disassembled. To fill withgrease, lay the right half of the transmission on its side, add 22 ouncesof Benalene 920 grease, and assemble the left half to it. See anauthorized Sears Service Center to have the transmission lubricated orto schedule service, simply contact Sears at 1-800-4-MY-HOME®.Check Engine Oil1. Check oil before each use. Stop engine and wait several minutesbefore checking oil level. With engine on level ground, the oil mustbe to FULL mark on dipstick.2. Refer to the Assembly section of this manual for instructions onchecking the oil.Change Engine Oil• Refer to the viscosity chart (Figure 25) for oil recommendations.Do not over-fill. Use a 4-stroke, or an equivalent high detergent,premium quality motor oil certified to meet or exceed U.S. auto-mobile manufacturer’s requirements for service classification of aminimum level SF or SG (higher letter ratings are acceptable suchas SJ, SL and SM grades). Motor oil will display this designationon the container.Figure 25NOTE: Do not use non-detergent oil or 2-stroke engine oil. It couldshorten the engine’s service life.• Change engine oil after the first five to eight hours of operation,and every fifty hours or every season thereafter. Change oil everytwenty five hours when operating engine under heavy load or inhigh temperatures.To Drain OilWARNINGBefore tipping engine or equipment to drain oil, drain fuel from tank byrunning engine until fuel tank is empty.WARNINGUsed motor oil may cause skin cancer if repeatedly left in contact withthe skin for prolonged periods. Although this is unlikely unless youhandle used oil on a daily basis, it is still advisable to thoroughly washyour hands with soap and water as soon as possible after handlingused oil.1. Drain the fuel from the tank by running the engine until the fueltank is empty. Be sure fuel fill cap is secure.