What is the reason for low lubricating oil pressure in screw air compressors?
The lubrication system of screw air compressors generally consists of main shaft gear oil pump and motor driven auxiliary gear oil, filter, oil cooler, oil filter box in the crankcase, plunger type oil injector, connecting pipeline, and other parts. There are several common reasons for low lubricating oil pressure in screw air compressors:
1. The oil pressure gauge of the screw air compressor is malfunctioning and inaccurate;
2. The oil level in the mailbox is low and insufficient;
3. The oil filter box or oil filter in the crankcase is blocked;
4. The quality of lubricating oil does not meet the regulations;
5. Excessive wear and clearance of crankshaft connecting rod shells;
6. Excessive wear and clearance of oil pump gears;
7. The oil pump shaft oil seal is worn;
8. Wear of oil pressure regulating valve and sealing surface or failure of spring;
9. Oil cooler and oil pipeline blockage