Routine maintenance of diving cooler pump. Check whether the power cord is damaged every day, and it is absolutely forbidden to launch the diving cooler pump with leakage. Check whether the water pump body is damaged every day to ensure that the motor does not leak electricity when it is working. After the operation is over, the sundries attached to the water pump should be cleaned up in time, and the water pump should be rinsed clean. In order to ensure the normal operation of the submersible pump, the following requirements must be followed. Before using the submersible pump, the insulation resistance of the motor must be checked with a megohmmeter, and the minimum value should not be less than 50MΩ.

The water-immersed motor should open the water filling screw plug, fill it with clean water, and then tighten the screw plug. Do not unscrew the water filling screw plug and enter the well directly. Check the cable for cracks and breaks before use. If it is damaged, it should be replaced in time to prevent leakage. The diving cooler pump should be filled with clean water before launching, then idle for 1-2 minutes, and start twice, check whether the starting and idling are normal, and whether the steering meets the requirements. If the steering is reversed, just exchange any two-phase wiring. Check whether there are cracks in the water pipe and whether the connection is firm. When the submersible pump is lowered and hoisted, it is absolutely not allowed to pull the cable hard to avoid damage to the cable or disconnection of the joint, causing undue accidents. Iron wires or pallets should be used to go down and lift.