SWITCH-START 3672832 - Caterpillar

Memory Function
After one of the following events has occurred, the engine will operate at the 10 position of the engine speed dial when the engine is restarted:
The engine was stopped with the AEC switch in the OFF position and the engine speed dial was in the 10 position.
The engine was stopped at a low idle and the engine speed dial was in the 2 position.Function
The position of the governor actuator is stored in the memory when the key start switch is turned to the OFF position (engine OFF). After the key is turned to the OFF position, the governor actuator will move to the maximum position of the AEC side for 10 seconds in order to stop the engine. Then, the governor actuator will return to the stored position. Unless the governor actuator is moved by one of the following operations, the engine will start at the speed that was previously stored in the memory.
Release of AEC and one touch low idle by operating the control levers and the pedals.
The engine speed dial is operated.
The AEC switch is operated.
The one touch low idle switch is operated.Note: The 325C and 330C perform this function through the Engine ECM.Prevention Of Overspeed During Low Engine Oil Pressure
This function is designed to prevent the engine from starting at a high speed during a condition of low oil pressure. After the engine oil filter is replaced, a long time may be required before the engine oil pressure will reach the specified level. The turbocharger may be damaged if the engine runs at the speed dial position of 10. The following information describes this function.The engine speed will be limited to the position of 5, if the engine oil pressure switch is open. The engine speed will also be limited to the position of 5, if the governor actuator was held in the high speed position before the stopping of the engine. The engine will start at the speed of the 5 position.Note: 325C and 330C machines do not have oil pressure switches.Prevention Of Overspeed During Overheating Condition
This function is designed to prevent damage to the engine that is caused by overspeed during an overheating condition. Work that requires high pressure will be restricted during an overheating condition. The engine and other components are protected during this condition. The engine speed will be decreased to the second setting of the AEC (1300 rpm).Control Of The Hydraulic Oil At Low Temperatures
When the conditions of the climate are cold and the temperature of the hydraulic oil is low, the machine may not operate smoothly. The output of the pump will decrease by a small amount. This allows the operations to be smoother until the temperature of the oil rises. When the hydraulic oil temperature sensor has detected an oil temperature below 15 °C (59 °F) the system limits hydraulic pump output pressure to 80% of maximum hydraulic horsepower. When the hydraulic oil temperature sensor detects an oil temperature that has risen above 20 °C (68