1. The installation height, length and diameter of the pump suction pipe shall meet the calculation value, try to be short, reduce unnecessary losses (such as elbows, etc.), and ensure that the allowable NPSH is not exceeded when the pump is working.

2. Suction and discharge lines should have supports. The pump is not allowed to bear the load of the pipeline.

3. The pump installation site should be spacious enough to facilitate maintenance work.

4. According to the analysis of the generator manufacturer, the normal wear caused by long-term use of the engine or the abnormal wear caused by improper maintenance will make the cylinder liner of the diesel engine form longitudinal stretch marks, and the cylinder diameter and piston side clearance exceed the specified value, which will reduce the supporting force of the piston ring and cause the phenomenon of unclean oil scraping.