Failure of the fuel injection pump of a diesel generator set can easily lead to the problems in the operation of the diesel engine. It is necessary to pay attention to the maintenance when the diesel engine is not working, so that the wear of the fuel injection pump plunger or sleeve can be found in time. The wear of the plunger and the sleeve is mainly caused by the effect of impurities in the diesel and the high-pressure diesel scour. The common wear parts are the middle part of the top and the spiral edge and the inlet and outlet holes of the sleeve. The surface is dark after wear. The specific causes of wear of the plunger and sleeve are as follows: 1. The diesel is not filtered nor precipitated, so that diesel contains more impurities. 2. The diesel filter cannot filter. It should be replaced with a new one. 3. The diesel brand is not selected properly. For example, when the temperature is high, diesel with too low viscosity is used to make the pl...
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