This includes both excessive torque and engine speed. Overload may be indicated by excessive firing pressures and exhaust temperatures. When conditions indicate an overload, reduce the load immediately. We discussed the importance of lubrication in chapter 8 of this training manual. The performance of the lubrication system is one of the most important factors of engine operation you can monitor.
Indicators continuously show oil temperature and pressure in key parts of the system.
While the engine is operating, you should monitor the indicators and sight glasses on a regular basis. Under typical operating conditions, you should be able to estimate the rate at which the engine burns its lubricating oil and to predict when replenishment will be needed. The condition and cleanliness of the lubricating oil is critical for long engine life. Therefore, you should clear the metal-edge type of lubricating oil strainers by rotating the cleaning handle. The condition of filters is often indicated by the amount of pressure drop from the inlet to the outlet.