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Proper operation and maintenance are key factors in obtaining the maximum life and economy of the engine. Following the directions in this Manual will lower operating costs.The time needed for the engine to reach the normal mode of operation is usually less than the time taken for a walk-around inspection of the engine. After the engine is started and the cold low speed operation is completed, the engine can be operated at rated speed and low power. The engine will reach normal operating temperature faster when operated at low power demand than when idled at no load. Typically the engine should reach operating temperature in a few minutes.Normal Mode
The electronic governor/control (ECM) system provides complete engine speed governing and controls cold start mode strategies, torque shaping, smoke limiting, system diagnostics and communication data links to monitor performance and diagnostic information. Warning outputs are provided for low oil pressure, low boost pressure, high coolant temperature and low coolant level with a diagnostic lamp.The purpose of normal mode is to monitor and control the genset. The GSC controls the engine according to the information received from the operator (panel switches, controls) and from the engine sensors. Some of the functions performed by the GSC while in normal mode are: engine starting, monitoring of important genset conditions, showing the operator the important genset conditions, fault detection, and engine stopping.The operator can identify normal mode by observing the display area. When in normal mode: all shutdown indicators are OFF, the fault alarm indicator is OFF and SERV is NOT displayed on the upper window. When the GSC is in normal mode, the engine is able to start or run. Refer to Engine Control, Monitoring and Protection topic for information regarding GSC control panel. In the AUTOmatic position (3 o'clock), the engine will start automatically whenever a remote initiating contact is closed. The engine will shutdown after the initiating contact opens and adjustable cooldown time elapsed. The cooldown time can be programmed to give a 0 to 30 minute cooldown period before the engine shuts down.In the MAN. START position (6 o'clock), the engine will start and run as long as the ECS switch remains in this position. In the COOLDOWN STOP position (9 o'clock), the fuel solenoid shuts the engine down, after a programmable cool down time period. In the OFF/RESET position (12 o'clock), the fault lights are reset and the engine shuts down immediately.1. Do not apply a load to the engine, or increase the speed until the oil pressure indicates normal. 2. Move the Manual Speed Potentiometer (MSP) to the (high idle-full load) position. 3. Apply the load to the driven equipment.4. Manually turn the MSP adjusting knob to change engine speed. To adjust or change engine speed droop setting, use the speed droop set screw. Control Panel Equipped Engines-Starting, Operating and Stopping
For all information regarding the generator control panel used for starting, operating and stopping the engine, refer to SR4 Generators and Control Panels Operation & Maintenance