1 First of all, consult the user about the use of the water pump and the depth of the well water (including the maintenance of the motor), such as actual voltage, use environment, service life, whether the water pump has failed before and the cause of the failure.
2. Impeller is made of different materials, such as plastic impeller, copper impeller, aluminum impeller and cast iron impeller. According to the structure of the pump, decide how to disassemble the impeller. Some can use a three-claw puller, while others can't.
3. Some water pump motor stators can be maintained without being taken out of the housing, while others can only be maintained if the motor stator core is separated from the housing. The commonly used tool is Neirama.
4. The graphite sleeve should be installed by hydraulic device (uniform stress will not damage the graphite sleeve), and it needs no explanation.
5. After winding the wire package, you can tie the wire end with a common cable tie (which helps to tie it evenly and not loosen it), and the wire end can be welded with an electric soldering iron or a touch welder.
6. The data of stator winding of submersible pump can be recorded together with maintenance (the data of many different brands of pumps are different, so all nail sizes should be measured and recorded for future reference).
Of course, there are also many precautions. There are many kinds of pump structures, such as different disassembly methods, seal maintenance, etc. If you don't understand, leave your QQ number, or add group 189088774 to find me.