When maintaining a submersible pump, the following aspects should be noted:
1. Before using, check the cables, switches, electric shock protectors, etc. The switches and other electrical appliances should be working properly, the cables should be undamaged, and pay attention to carefully identifying the cables. One of the two colored wires is a grounding wire to prevent electric leakage and shock accidents.
2. The insulation resistance of the submersible pump should be checked at regular intervals (about 1000 hours) before use, and should not be lower than 0.5M Ω. If it does not meet the requirements Then drying treatment is required.
3. Regularly inspect the drain hole and oil drain hole. If there are no abnormalities, tighten it.
4. When the submersible pump enters or exits the water, the TSWA horizontal multi-stage pump must first cut off the power supply, and then pull the rope tied to the lifting ring, which can definitely pull the cable.
5. After working for 300 hours, the submersible pump should undergo a water sensitivity test. If the released water or oil-water mixture is less than 25mL, it can continue to be used. Otherwise, the valve block and rubber seal ring should be checked for damage.
6. Submersible pumps should not be buried in river mud. If there are many debris in the water, the submersible pump should be placed in a basket or basket before placing the basket or basket into the water.
7. When testing the submersible pump outside the water (such as to determine the direction of rotation), it should not exceed 5 minutes to prevent the motor from overheating and burning out.
