Sewage pump is widely used for sewage treatment. Then, how do we maintain the sewage pump?
1. To confirm the rotate direction of motor is correct
Today, there are many types of submersible sewage pump can pump water both rotates forward and inversely. However, when it rotates inversely, water yield is small, current is large and it will damage the motor winding if it lasts for a long time.
2. To avoid starting the motor with abnormal supply voltage
When phase voltage is lower than 198V and line voltage is lower than 342V, motor rotate speed of submersible sewage pump will reduce; when it does not reach 70% of rotate speed, winding and capacitor will be easily burned out. Thus, when submersible sewage pump is at operation, the operator must check value of supply voltage at any time.
3. Installation of the cable
The cable should be overhead and power cord should not be too long when install submersible sewage pump. Do not apply force to the cable when put submersible sewage pump into or out of the water to prevent the cracking of power cord.
4. Installation of leakage protector
Due to working under the water, submersible sewage pump is easy to leak power, or even cause electric shock accident. If leakage protector is installed, it will cut off the power source when the leakage value exceeds action current value of leakage protector (generally no more than 30mA) to ensure the safety.
5. Pay attention to usual maintenance
To check the motor frequently and replace or repair them timely if there are cracks on the lower cover or rubber seal ring is damaged to prevent from water entering the submersible pump.
Manufacturers recommend: Shenlong stainless steel sewage pump
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