What Are The Maintenance Requirements For Vertical Sewage Pumps

Jan 07, 2026

Vertical sewage pumps have been widely used in many industries due to their safety and reliability. They have strong overcurrent capacity and are also protected by double ventilation. They are now widely used in construction, farmland irrigation and drainage, and other fields. Here, we need to understand how to maintain it.

 

1, Timely replace lubricating oil

The normal operation of a vertical sewage pump also relies on the lubrication effect of lubricating oil. Therefore, the inspection and replacement of lubricating oil has become a major aspect of maintaining the vertical sewage pump. When conducting inspection and replacement, we should pay attention to whether the oil level is at the centerline of the oil gauge. Only at such a position can it be in perfect use.

2, Check fasteners

Because vertical sewage pumps often operate continuously and generate vibration during operation, the fasteners may loosen and fall off due to such vibration effects. Therefore, for the maintenance and inspection of vertical sewage pumps, it is necessary to check whether the sewage pump pipelines and joints are loose. During inspection, you can also manually rotate the sewage pump to see if it operates flexibly.

 

3, Check the usage of the motor

The motor is the heart of machinery. Only by ensuring the good operation of the motor can the vertical sewage pump operate smoothly. The first thing we need to do is to close the gate valve of the outlet pipeline, as well as the outlet pressure gauge and inlet vacuum gauge. Next, we need to jog the motor to check if the direction of rotation is correct. Then start the motor. When we observe that the sewage pump is running normally, the next thing to do is to turn on the outlet pressure gauge and the inlet vacuum pump to check if they display the appropriate pressure. Then, gradually open the gate valve and check the motor load.

4, Effective flow control

Like other sewage pumps, vertical sewage pumps also have flow requirements. For inspection and maintenance, including this aspect, we need to check whether the flow rate and head of the sewage pump are within the specified range. Only within the specified range can we ensure that the sewage pump operates at a high efficiency point. Another advantage is that it can achieve high energy-saving effects.
Of course, our maintenance of vertical sewage pumps is not limited to the above. The more comprehensive the maintenance content, the better the use effect.