TM 5-4310-393-143-15.1. ENGINE OIL LEVEL.A. Inspect.1.Checking the Oil Level in Engine Crankcase.a.Remove dipstick (Figure 3-13, Item 1) andwipe with lint-free cloth.b.Insert dipstick all the way into the engine,then withdraw.c.Oil should coat the dipstick up to the topmark (2) (max.).d.If oil is below the top mark, remove cap (3)and add oil to bring oil level to top mark. Again check oillevel to be sure oil coats dipstick to top (max.) mark.e.Check that oil cap (3) is tightly closed.FIGURE 3-13. ENGINE OIL FILLB. Service.1.Changing the Oil.a.Change oil after first 20 hours of operation of new engine and then every 120 operating hours.CAUTIONThe Federal Water Pollution Control Act prohibits the discharge of oil or oily wasteinto or upon the navigable waters of the United States or the waters of thecontiguous zone, if the discharge causes a film or discoloration of the surface ofthe water or causes a sludge or emulsion beneath the surface of the water. Ensurea container of sufficient size is used when draining the oil.b.With engine warm, place a suitable container under oil drain plug. Remove plug (figure 1-2) and drain oil.Inspect copper gasket, replace with new one if damaged. Reinstall plug.c.Remove oil cap (3) and fill engine crankcase to top mark on dipstick with oil. Crankcase capacity is 1.1 qt(1.0 I). Reinstall dipstick and cap.d.Remove the oil drain pan. Dispose of the used oil in accordance with current instructions for oil wastedisposal.3-22
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