Tecumseh Products OHM90 Operator Manual - Page 8
Engine Stop Switch, Low Oil Shutdown Switch, Low Oil Shutdown Light, Low Oil Shutdown System
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C. Engine Stop Switch Some engines are equipped with an optional Stop Switch. This rocker switch is used to shut off the ignition that supplies the spark plug with power. Pressing the "OFF" position will turn the engine off when it is running. This switch must be in the "ON" position or the engine will not start. See Figure 10. D. Low Oil Shutdown Switch Some engines are equipped with an optional Low Oil Shutdown Switch. This is a lighted rocker switch that is connected to a float switch in the engine crankcase. When oil level drops below a predetermined level, the float switch cuts off current to the spark plug and the engine stops running. Oil must be added to the engine to bring the oil to the proper level before the engine will start. If an attempt is made to start the engine before oil is added, the switch will flash as the engine rotates, and the engine will not start. See Figure 11. Pressing the "OFF" position of the Shutdown Switch while the engine is running, will turn the engine off. The engine will not start with the switch in the "OFF" position. E. Low Oil Shutdown Light Some engines are equipped with an optional Low Oil Shutdown System that includes a light but does not include a rocker switch. The float switch in this system will shut the engine off while it is running if the oil level in the crankcase falls below a predetermined level. Oil must be added to the engine to bring the oil to the proper level before the engine will start. If an attempt is made to start the engine before oil is added, the light will flash as the engine rotates, and the engine will not start. See Figure 11. F. Low Oil Shutdown System Some engines are equipped with an optional Low Oil Shutdown System that does not have a rocker switch or a light. The float switch in this system will shut the engine off while it is running if the oil level in the crankcase falls below a predetermined level. Oil must be added to the engine to bring the oil to the proper level before the engine will start. Climate Guard ! RUN CHOKE 1 2 1. "ON" Position 2. "OFF" Position Figure 10. Engine Stop Switch 1 Climate Guard ! 1. "ON" Position 2. "OFF" Position 3. Lighted Switch 2 3 Figure 11. Low Oil Shutdown Switch Page 6 Four-Cycle Engine • Horizontal Crankshaft • Air-Cooled 181-719-14