Vacuum pump after long-term use, if there is no routine maintenance there will be some small or large problems, such as the exhaust port leak, vent leak mainly one of the reasons: exhaust filter problems.

First, cause the exhaust filter leakage reasons

1, exhaust filter filter failure, oil and gas can not be completely separated.

2, exhaust filter mounting o-ring mouth seal bad.

3, exhaust filter installed in place. Shaft seal spills, leak problems are common.

Found that the shaft seal due to wear and leakage, oil leakage must be replaced when the shaft seal. Different pump types, different manufacturers of shaft seal structure is not the same. Should be based on the original design type with the same or similar seals put on. For example, spring rubber ring standard wear and tear is not serious, you can remove the fastening wire spring and then reload it. Serious wear and tear should be replaced according to the original caliber new ring. o-type, j-type and jo-type seals, have a standard series, assembly should pay attention to the location of a positive and compression. Some rubber seals can also be made. Its inner and outer diameter can be obtained by measuring the shaft and shaft holes, the size should be slightly smaller, the thickness of the room to be compressed, easy to install self-locking.

Second, the daily maintenance of the vacuum pump

1,3 to 6 months will have to change the vacuum pump oil, each pump at the time of the factory will indicate what oil. To change the original, do not mix,

About 2 to 6 months for an exhaust filter and into the filter and Leybold vacuum pump oil grid.

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