The submersible pump fails during use, many of which are caused by the use of stainless steel submersible pumps and improper maintenance. The following issues must be paid attention to during the use and maintenance of submersible pumps.
1. The submersible pump cannot be dehydrated. Test run under anhydrous conditions, the time should not exceed 5 minutes. During the pumping process, if the water level continues to drop, be careful not to allow the pump body to work above the water surface.
2. The submersible sewage pump cannot be restarted immediately after it is stopped. It can only be started after the water in the pipe has returned to completion. If there is no water after starting, stop the machine immediately to find out the cause and eliminate it.
3. It should be used near the specified head; the inner diameter of the matching rubber tube, iron tube or canvas tube should meet the technical requirements.
4. When the submersible pump is placed in the water or raised to the surface of the water, the lifting rope must be pulled, and the cable must not be pulled. If you want to transport, disassemble or overhaul, you should cut off the power first.
5. The diving depth of the submersible sewage pump is generally 0.5 to 3.0 meters. When the submersible pump is submerged in the water, it should be lifted vertically, not lying horizontally, and not falling into the mud.
6. Submersible pumps should not be started frequently, and should not be used for irrigation or drainage of water or muddy water with high sand content. When in use, the outside of the pump can be covered with bamboo net or barbed wire to prevent weeds from blocking the grid of the submersible pump or jamming the impeller of the pump.
7. After starting up, if the impeller reverses (the water output is greatly reduced or no water is discharged), the machine should be shut down immediately, and any two phases of the three-phase core wire in the cable should be exchanged to make the water flow out.
8. The submersible pump can be controlled by a water pump control cabinet. If there is no such equipment, a three-phase knife switch can also be used, but a 6-amp electric fuse must be installed.
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