[Problem] fruit such as oranges controlling operation, or the oral medicaments, such as bathing without, one person to safely perform work for controlling chemical spray device. [Solution] a light four-wheel truck platform part 100, 230 installed in the moving part, the moving part on, chemical storage tank 250 and 260 and the power for driving the engine at the end of the nozzle and the sprayer sprayer 210 and 220 and the expansion section 240 at the revolving part, by power from the chemical liquid tank, a high pressure spray nozzle and nozzle feed through chemical hose, the fuel injection angle by adjustment [...] contracts, the nozzle and the horizontal direction by rotating the rotating part connected to the lower, the lower turning port connected to a chemical spray device is moved down by the contraction part is installed, the turning motor and the expansion section of the engine for driving the sprayer can manipulate a light four-wheel truck cab of the intensively [...] 300 are provided, the contraction of the liquid spray, rotary, vertical, water, cut out of operation. Figure 1 [drawing]