1. Check whether the bolts are loose, whether the power cord and plug are in good condition, and whether the insulation resistance of the motor is greater than 2.
2. In order to prevent electric shock, relevant safety measures such as leakage circuit breaker or shock protector must be installed and reliably grounded.
3. The working voltage of the pump should be within the range of rated voltage ±5% or 12%, otherwise the service life of the motor will be reduced or burnt out.
4. Turn on the power switch and idle the pump for about 2 minutes to check whether the startup is normal and the steering is correct.
5. Fix the pump body, connect water inlet valve with steel pipe or rubber pipe (not too soft, so as not to suck, flat), the valve must be perpendicular to the horizontal plane, from the bottom of 30cm above, so as not to suck sand.
6 use clean water centrifugal pump and gear pump before use, to first fill the water tank, electricity after a few seconds can not automatically water, use without irrigation.
7. Before using the gear pump and the automatic gear pump, the water storage tank should be filled with water. The water should not be powered automatically after a few seconds, and the water should not be filled after using.
8. When using, the motor should be kept dry, pay attention to the drop of water level, do not expose to the valve.
9. If not used for a period of time, the water pump (gear pump and automatic pump out water storage tank) should be cleaned, the main components should be scrubbed clean, coated with anti-rust oil, and placed in a ventilated and dry place for backup.
