Electronic Fuel Injection Pump Fault Check of 1075 Combined Harvester
Electrical fuel injection pumps are essential components used in engines of 1075 combined harvesters. It is necessary to detect and repair faults in an appropriate and timely manner in order to ensure that the 1075 combined harvester runs at the specified performance and meets customer service expectations. The following describes the fault diagnosis and maintenance of the 1075 types of electrical fuel injection pumps in detail.
First, the main fault of the fuel injection pump of the 1075 correlated harvester
1. Fuel injection pump throttle is too large, resulting in acceleration instability. This fault may be caused by grinding and can be adjusted.
2. If the fuel injection pressure (or fuel injection advance angle) is too low, the opening of the fuel injection valve is insufficient and the load becomes weak. The fault needs to be adjusted.
3. When the engine is cold starting, the fuel injection pump fails to work or the fuel injection pressure is too low, resulting in unstable or insufficient cold start.
4. When the diesel engine is running, the fuel injection pressure is too high or the fuel injection advance angle is too large, resulting in poor fuel economy and poor engine power output.
5. The fuel injection pump has abnormal noise.
Second, maintenance of the fuel injection pump of the 1075 correlated harvester
1. In order to ensure that the fuel injection pump of the 1075 correlated harvester maintains its normal performance characteristics, it is necessary to use the specified lubricants and change the oil regularly.
2. Pay attention to the fuel injection pump, and replace the seals and water separators regularly in time if necessary.
3. Pay attention to the fuel composition of the fuel injection pump of 1075 correlated harvesters, and check or clean the fuel filter regularly.
4. Regularly use a comprehensive tester to perform comprehensive diagnosis and regular calibration for the fuel injection pump to ensure that the fuel injection pump works optimally.
5. After the fault detection of the fuel injection pump of the 1075 correlated harvester is completed, the periodic maintenance of the fuel injection pump including parts replacement, cleaning, and replacing the fuel injection pump by clamping valve should be performed in an appropriate and timely manner.
Third, the key points of maintenance of fuel injection pumps of 1075 correlated harvesters
1. Lubricating system fault detection. Regularly check the fuel pump lubrication system including fuel injection pump, oil pressure regulation and return valve and other components. Check the oil supply, pressure and backflow of the fuel injection pump.
2. Fault detection of fuel injection nozzle. Regularly detect the fuel injection nozzle including fuel quantity, spray angle and atomization of fuel injection nozzle. The working condition of each fuel injection nozzle should be consistent.
3. Fault detection of fuel supply and fuel pressure regulator. Check the fuel pressure regulator for correct working pressure, fuel supply capacity and return flow rate.
4. Test the electronic throttle. The electronic throttle works according to the parameters set in the fuel injection pump. If the parameter setting is incorrect, the electronic throttle will malfunction, resulting in an unstable engine.
In conclusion, the electronic fuel injection pump of the 1075 correlated harvester is a vital component for the normal operation of the engine and detecting and troubleshooting will help ensure its performance and customer service satisfaction. Adherence to effective troubleshooting techniques and maintenance strategies is key to a successful harvest.
