What does the routine maintenance of vacuum pump do?

I don't know what type of vacuum pump you want to maintain, I can provide oil lubrication vacuum pump maintenance information here! For your reference! Daily maintenance of oil-lubricated rotary vane vacuum pump is described as follows:
1. Check the operating environment of the pump to avoid foreign matters and sundries falling on the pump.
2. Before starting up, check whether the oil level meets the requirements of starting up. If the pump oil is not enough, add it and make sure it is at the normal oil level.
3. Pay attention to starting and running sound and temperature rise.
4. Check the exhaust pressure after starting the system for 15 minutes, and check whether there is oil injection at the exhaust port.
5. In the case of proper moisture content in the operating medium, the pump shall be started 30 minutes before the system starting and shut down 30 minutes after the system closing. Note: never mix different brands of vacuum pump oil in the oil tank
Cycle maintenance: vacuum pump oil:
It is recommended to use the pump oil brand and model specified by our company.
2. Replace the pump oil after the first use of the pump for 100 hours, and then replace it every 500-2000 working hours (depending on the operating medium, working environment and other factors).
3. When changing the oil, the oil in the oil tank should be put out first, and a small amount of new oil should be injected, and then the oil should be put out half a minute after starting up, and finally the new pump oil should be injected to the designated oil level. Rotary film: use cycle of about four years. Bearing: about 4 years replacement, usually during overhaul. Exhaust filter: the replacement cycle is 18 months (depending on the operating environment) or when the exhaust pressure exceeds 0.6bar (the indicator of the exhaust pressure gauge points to the red area). Oil filter: in principle, replace the oil circuit of the oil tank at the same time as the pump oil: the cleaning cycle is 500-2000 hours.
General maintenance: general maintenance and cycle maintenance is carried out at the same time, in the maintenance of the pump at the same time, and ensure the pump working capacity. The general maintenance warranty period is 6 months. General maintenance work is recommended by our professional staff
V. medium repair: when the vacuum degree fails to meet the work requirements or the pump head has abnormal sound, the pump head shall be repaired. The warranty period is 6 months.
1. Check and replace all defective parts of the pump head, replace the shaft seal and pump oil.
Clean the cylinder liner, rotor and exhaust valve.
Clean all parts of intake flange and replace inlet one-way valve if necessary
4. Assemble the pump head and adjust the rotor clearance.
The whole machine is assembled and operated for one hour, and the technical parameters are tested. The repair work must be carried out by our professional staff
6. Overhaul: when the pump is seriously damaged, the operation data is seriously decreased, or the daily maintenance is less than three years, or the pump is continuously used for more than five years, the overhaul and maintenance shall be carried out. The warranty period is 6 months.
1. Replace the following parts (a set of overhaul package): rotor, bearing, shaft seal, shaft sleeve, sealing ring, exhaust filter, oil filter and pump oil.
2. Clean the following parts: oil system, exhaust valve, cylinder block, rotor, air inlet assembly and exhaust assembly.
3. Assembly of pump head and adjustment of rotor clearance. 4. The whole machine is assembled and operated for one hour, and the technical parameters are tested.


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