In the fuel supply system of diesel engine, the feed advance angle is a very critical parameter. The feed advance angle determines the injection time of the fuel, which directly affects the performance and emissions of the diesel engine. If the fuel supply advance angle is too large or too small, it will lead to problems such as difficulty in starting, power decrease, and increased fuel consumption of diesel engines. Therefore, it is very necessary for diesel engine users to master the adjustment method of the fuel supply advance angle.
Carter diesel engine is a diesel engine brand widely used in construction machinery, ships, generator sets and other fields. The fuel injection pump of the Cater diesel engine is the core component of the fuel supply system, and the adjustment of the fuel supply advance angle has an important impact on the performance and life of the diesel engine. This article will introduce in detail the adjustment method of the fuel supply advance angle of the fuel injection pump of the Carter diesel engine.
Preparation before adjustment.
Before adjusting the oil supply advance angle, the following preparations need to be made:
1.Make sure the diesel engine is level and secured.
2.Check and make sure the fuel injection pump is installed correctly and is not loose or shifting.
3.Prepare the necessary tools and measuring instruments such as wrenches, screwdrivers, dial gauges, etc.
4.Learn about the structure and working principle of the Cater diesel fuel injection pump for better operation.
Adjustment steps. The adjustment steps of the fuel supply advance angle of the Cater diesel engine fuel injection pump are as follows:
1.Remove the side cover of the fuel injection pump and install the fuel injection pump on the test bench.
2.Use a wrench or screwdriver to turn the drive shaft of the fuel injection pump and check that it rotates smoothly and that there is any jamming or squeak.
3.Adjust the installation position of the fuel injection pump so that the drive shaft is in a horizontal state and ensure that the installation gap between the fuel injection pump and the test bench is appropriate.
4.The angle of rotation of the drive shaft is measured using a dial gauge and the measurement results are recorded.
5.Adjust the feed advance angle of the fuel injection pump. According to the model and specification of the Carter diesel engine, use the corresponding tools and instruments to adjust. Generally speaking, it is necessary to loosen the fixing screw of the fuel supply advance angle on the fuel injection pump, and then turn the adjustment screw to adjust. During the adjustment process, it is necessary to pay attention to the change of the reading of the dial gauge to ensure that the oil supply advance angle is within the specified range.
6.After the adjustment is completed, re-tighten the screws, and check again whether the rotation angle of the drive shaft and the oil supply advance angle meet the requirements.
7.Carry out the test operation of the diesel engine to observe whether it is working normally and whether there is abnormal noise or vibration. If there is an anomaly, the feed advance angle needs to be readjusted.
8.If the trial operation is normal, the adjustment of the oil supply advance angle is completed.
Precautions. When adjusting the fuel supply advance angle of the Cater diesel engine fuel injection pump, the following matters need to be noted:
1.Before adjustment, it is necessary to fully understand the structure and working principle of the fuel injection pump, so as to avoid equipment damage or safety accidents caused by misoperation.
2.The adjustment process requires the use of suitable tools and instruments and strict adherence to the prescribed operating procedures.
3.During the adjustment process, it is necessary to pay attention to the changes of various parameters, such as dial gauge reading, equipment running sound, etc., to ensure the accuracy and reliability of the adjustment.
4.After the adjustment is completed, sufficient trial operation and inspection are required to ensure that the equipment is operating properly and meets the requirements.