| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that spray liquid is unnecessarily circulated and power consumption increases, since a conventional sprayer used for a farm operation or the like has a constitution in which, when a nozzle opening/closing valve at hand is closed, the spray liquid discharged from a discharge pump is returned to the storage tank side.SOLUTION: A mode changeover switch 55 for selecting an operation mode (suppression of power consumption) for stopping a discharge pump P when the pressure in a channel 25 becomes constant in the state where a nozzle changeover valve 34 is closed, or an operation mode (stirring in a tank 10) for circulating spray liquid by driving the discharge pump P as it is, is provided in a power supply circuit 50. |
