The ZDB-500 submersible pump should be energized and run for 1 minute without load after it is installed. There should be no abnormal sound such as mechanical friction and collision when listening to its operation.
The ZDB-500 submersible pump operates 1min on an electric empty load after loading, and the sound should not be abnormal such as mechanical friction and collision when listening to its operation.
After loading, zdb-500 submersible pump is powered on and runs without load for 1min. Listen to the sound when it runs, and there should be no abnormal sound such as mechanical friction and collision.<BR>