After long-term use of vacuum pumps, if there is no routine maintenance, there will be some big or small problems, such as oil leakage at the exhaust port. There is only one main reason for oil leakage at the exhaust port: the problem of exhaust filter.
I. Reasons for Oil Leakage of Exhaust Filter
1. The exhaust filter is invalid and the oil and gas can not be separated completely.
2. The O-ring seal at the outlet of the exhaust filter is not good.
3. Installation of exhaust filter is not in place. Oil leakage and air leakage of shaft seals are common.
Warm Tip: When it is found that the shaft seal should be worn and leaked, the shaft seal ring must be replaced when oil leakage occurs. There are many differences in shaft seal structure among different pump types and designers from different manufacturers. The original design should be replaced with similar or identical sealing rings. For example, when the standard parts of spring rubber rings are not worn seriously and air leakage is not serious, several rings of fastening steel wire springs can be removed and installed again. Serious wear should be replaced with new sealing rings according to the original caliber. O-type, J-type and j O-type sealing rings have standard series. When assembling, attention should be paid to positioning and pressing. Some rubber rings can also be made by ourselves. Its inner and outer diameters can be obtained by measuring axle and hole. Its size should be slightly smaller, and its thickness has room for compression. It is easy to install and self-locking.
II. Daily Maintenance of Vacuum Pumps
In January, March and June, the special oil for vacuum pumps will be changed once. Each pump will be marked with what kind of oil when it leaves the factory. To change the original, don't mix it up.
Change the exhaust filter and enter the filter element and vacuum pump oil level about 2 or 6 months.
