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After long-term operation, vacuum pump will appear the following problems： 

1.Vacuum pump outlet  will smoke 

2.Vacuum pump has oil spraying and leaking 

3.Vacuum pump low noise 

4.Vacuum degree is decreasing 

5.Vacuum pump produces high temperature 

If above situations occur, Pronotek vacuum pump vacuum technology recommend customers seek helps for professional technicians instead of disassembling the vacuum pump on their own. However, if the customers are able to make regular maintenance and wanting to reduce the repair cost, they can do some regular maintenance by themselves.

Reasons attributed to these problems： 

1、Outlet filter clogging causes smoking at the vacuum pump outlet.  Outlet filter is to separate gas and oil, which we call oil and mist. Generally speaking, the oil mist passes through the exhaust filter, the gas is discharged and the oil is filtered to recycle. If outlet filter clogs, the gas cannot exhaust and will open the seal, the oil therefore will not pass the air filter and discharge into the air directly. There are 3 reasons attributed to these conditions, firstly, the outlet air filter doesn’t replace on time, and the vacuum pump oil never refill again, namely, there’s no on-time maintenance for the filter. Secondly, the poor-quality air filter will cause outlet filter clogging. Thirdly, the poor-quality vacuum pump oil will also cause outlet filter clogging. We then suggest that vacuum pump should be filled with original and import vacuum pump oil. Even it is a substitute, it should also be approved by inspection and certification. Please pay attention that poor quality vacuum pump oil will sensitive to high temperature and will incur carbonization effect, which will bring carbon particles that will stuck into the inside of air filer and largely damage the vacuum pump. 

2、The reason of oil spraying and leaking comes from outlet air filter clogging by unqualified vacuum pump oil. When the pressure inside the pump increases, oil leakage will happen. 

3、Vacuum pump has loud noise. When oil circuit inside the pump was blocked and the pump lacks lubricant oil, it will cause loud noise and high temperature. Under such conditions, the vacuum pump needs to be overhauled.