Replacing the impeller of a deep well submersible pump is a process that requires careful operation. The following is a clear step-by-step guide:
1, Preparation work
1. Cut off the power supply: Firstly, ensure that the deep well submersible pump has completely stopped running and cut off the power supply to prevent electric shock accidents from occurring.
2. Prepare tools: Prepare the necessary tools such as wrenches, clips, hex wrenches, hammers, cleaning agents, etc.
3. Check the new impeller: Ensure that the selected new impeller is consistent with the original model and parameters to avoid unstable pump operation or other problems caused by impeller differences.
2, Disassemble the old impeller
1. Remove external connections: Remove the external connection components such as the suction pipe and outlet pipe of the deep well submersible pump.
2. Disassemble the pump body:
Use a wrench or clip to remove the pump body cover plate.
Remove the oil seal, spring seat, spring and other components in order until the impeller is exposed.
3. Disassemble the impeller:
Loosen the impeller nut with an Allen wrench and remove the impeller.
If the impeller is tightly connected to the bearing or pump shaft, the impeller bearing can be lightly tapped with a hammer to remove the bearing cover and bearing.
Be careful not to damage the seals and bearings.
3, Inspection and cleaning
1. Check the old impeller: Use a micrometer or visually inspect the old impeller for any breakage, damage, deformation, or wear, and replace it if found.
2. Cleaning the pump body: Clean the impeller and impeller housing with a cleaning agent to ensure that the inside of the pump body is clean and free of impurities.
3. Check other components: At the same time, check the condition of bearings, gaskets, and other components. If there is obvious wear or looseness, they also need to be replaced.
4, Install a new impeller
1. Prepare a new impeller: Apply an appropriate amount of lubricating oil to the new impeller and bearings to reduce friction and wear.
2. Install the impeller:
Install the impeller and bearings onto the pump shaft, ensuring that the installation direction and position of the impeller are consistent with the standard.
Install the bearing cover and insert the bearing cover screws.
3. Assemble the pump body:
Install the pump body cover, spring, oil seal and other components in reverse order.
Tighten all bolts and nuts to ensure that all components are tightly connected.
5, Testing and Running
1. Power on: After confirming that all components have been installed correctly, turn on the power.
2. Start the pump: Turn on the switch and start the deep well submersible pump.
3. Check operation: Observe the operation of the pump and check for any abnormal sounds, vibrations, or leaks. If there is any abnormality, the machine should be stopped immediately for inspection and troubleshooting.
matters needing attention
1. Safe operation: During the entire replacement process, attention should be paid to safe operation to avoid accidents such as electric shock and mechanical injury.
2. Keep clean: Ensure that the work area and the interior of the pump body are clean and free of impurities to prevent impurities from entering the pump body and affecting operation.
3. Follow the regulations: Strictly follow the operating procedures and precautions for operation. If you are not proficient in operation, it is recommended to have a professional replace it.
