REFERENCE ONLY S11.0MOE.AU1 ·19·22FEB93 S11.0MOE.M ·19·08FEB91 140497 PN=44 Engine Operating Guidelines IMPORTANT: To assure proper .Iubrication, operate engine at 1200 rpm with no load for 1-2 minutes. Extend this period 2-4 minutes when operating at temperatures below freezing. 1. Check oil pressure gauge (A) as soon as engine starts. If gauge needle does not rise above minimum oil pressure specification of 103 kPa (1.03 bar) (15.0 psi) within 5 seconds, stop the engine and determine the cause. Normal engine oil pressure is 380 ± 103 kPa (3.80 bar ± 1.03 bar) (55 ± 15 psi) at rated full load speed (1800-2500 rpm) with oil at normal operating temperature of 105°C (220°F). NOTE:
On certain engines, the oil pressure and coolant temperature gauges are replaced by indicator warning lights. The lights must be "OFF" when engine is running. 2. Watch coolant temperature gauge (8). Do not place engine under full load until it is properly warmed up. The normal engine coolant temperature range is 82°-94°C (180°-202°F). NOTE: It is a good practice to operate the engine under a lighter load and at lower speeds than normal for the first few minutes after start-up. To increase engine speed, turn handle (A) to the horizontal position and pull out until desired engine speed is obtained. Turn the handle in either direction to lock throttle position.
The handle is pushed inward to decrease engine speed. 36 CHANGING ENGINE SPEED-STANDARD (MECHANICAL) GOVERNOR WARMING ENGINE