What should I do when the sewage pump fails? We need to understand the common maintenance failures of sewage pumps.
1. The power supply voltage is too low
a. Transformer output voltage is low Solution: adjust the transformer voltage
b. The cross-section of the power supply line is too small Solution: use a line with a larger cross-section
c. The power supply line is too long. Treatment method: move closer to the transformer
2. The voltage drop of the power cable is too large
a. The cable is too long. Treatment method: cut off the excess part
b. The cross section of the cable is too small. Treatment method: replace the electric tassels with a larger cross section.
c. The motor winding is burnt out or the phase is broken. Treatment method: overhaul, replace the winding
3. Single-phase power supply
a. The treatment method for the poor contact of the power switch: repair the contact or replace the switch
b. The fuse is blown. Treatment method: replace the fuse or the fuse
c. Control cabinet main circuit Treatment method: Check and tighten the connection
4. The motor guide bearing holds the shaft. Treatment method: overhaul or replace the bearing
5. The water pump bearing holds the shaft Treatment method: overhaul or replace the bearing
6. The water pump impeller is stuck Treatment method: overhaul or replace the impeller
