电泵潜入水中前，应向泵内灌满清水，空转1 ~2分钟，并启动2次，检查空转和启动是否正常。

Pump into the water before the pump should be filled with water, 1 ~ 2 minutes of idling, and 2 times to start, check whether the normal idling and start-up.

youdao

电泵潜入水中前，应向泵内灌满清水，空转1 ~2分钟，并启动2次，检查空转和启动是否正常。

Pump into the water before the pump should be filled with water, 1 ~ 2 minutes of idling, and 2 times to start, check whether the normal idling and start-up.

youdao