Generally, the maintenance work of the pump are the maintenance work for electric motor, the maintenance work for control panel and the related valves, pipeline work.
About the electric motor, it need check the wire and connection timely. Check the electric motor resistance and other components timely. Do not let the motor work with any covering outdoor when it is possible no matter what IP level it is. Take carefully about them is not only in the cost but also very important for the human life.
The control panel need cut off the power to check timely to make sure all switch power off/on smoothly and reliable. The pump set need restart to make sure right operation after check and all light or indicator should be OK all the times.
The valves and the pipeline always be easy to ignore as they always lay here but it is also very important for the system work. Make sure the check valve and strainer if there is any in right work, there is should be support for the pump inlet and outlet and add expansion joint when it is possible. Painting at pipeline, fittings and the pump is some work necessary and should be well done timely and you will find that all your work is worth both in visual and longer the use life.
The worker is the key for everything as no matter what system or paper work processing, it should be done by the man. It is important try to train your worker timely and let me know work carefully instead of rough in assembly & disassembly and even if their hand or the lubricated oil is clean or not will relate the pump use life directly.
Make the mistake is the biggest problem and good management and right paper work processing, timely train work which will let you only take the mistake only once.