The Vacuum pump bearing ER207-20 is a small accessory specially designed for vacuum pump 30-WS. As a key component of a vacuum pump, the ER207-20 bearing plays a crucial role in the operation of the vacuum pump. To ensure that the pump unit can work more effectively, according to the instructions, we need to replace the ER207-20 bearing every three months.

The replacement process of Vacuum pump bearing ER207-20 is not complicated, but certain operating steps need to be followed. Firstly, we need to stop the pump from running. The steps to stop the pump operation are as follows:

1) Close the main pipeline valve: This is to prevent the gas in the main pipeline from flowing back into the pump body during bearing replacement, causing confusion.

2) Open the exhaust valve to eliminate pump vacuum: After closing the main pipeline valve, we need to open the exhaust valve to discharge the vacuum gas inside the pump body for bearing replacement.

3) After the pump vacuum is eliminated, turn off the pump switch: When the vacuum inside the pump is completely eliminated, we can safely turn off the pump switch to stop the pump from running.

After stopping the pump operation, we can start replacing the Vacuum pump bearing ER207-20. But before replacing the new bearing, it is necessary to remove the old bearing and clean the bearing seat to ensure that the new bearing can operate in a clean environment.

After replacing the new bearings, we need to restart the pump. Before starting the pump, if the pump does not work for a long time, we should fill the entire pump body with oil to avoid air corrosion. Before starting the pump again, it is necessary to pay attention to removing oil to prevent oil contamination of the working environment.

In addition, if the pump is idle in a frozen environment, we need to drain all cooling water through the two drain plugs under the front and rear end covers. This is to prevent the cooling water from freezing and causing the end cap to break. The discharge of cooling water is to ensure that the pump body will not be damaged due to water freezing in low-temperature environments.

In summary, the Vacuum pump bearing ER207-20 is a critical accessory for the normal operation of the vacuum pump 30-WS. Regularly replacing the ER207-20 bearing and following the correct operating steps can ensure that the vacuum pump unit can work more effectively. At the same time, pay attention to taking appropriate measures to protect the pump body from damage when the pump is not working for a long time or idle in a frozen environment. This can ensure the normal operation of the vacuum pump and extend its service life.