. Chemical weed-control equipment. Weeds; Spraying; Spraying equipment. do the job of the boom-line screen, be- cause their area is much too small, and they quickly become plugged. Pump-inlet and boom-line screens can be made detachable, for cleaning, or can be of the back-flush type if the flushed material can be run out of the machine. One manufacturer provides continual screen flushing by drawing liquid and dirt off the dirt collecting side of the screen, using a jet in the pump line to the tank to provide the liquid flow. Pressure Gauges. t t A properly calibrated pressure gauge of good qu
. Chemical weed-control equipment. Weeds; Spraying; Spraying equipment. do the job of the boom-line screen, be- cause their area is much too small, and they quickly become plugged. Pump-inlet and boom-line screens can be made detachable, for cleaning, or can be of the back-flush type if the flushed material can be run out of the machine. One manufacturer provides continual screen flushing by drawing liquid and dirt off the dirt collecting side of the screen, using a jet in the pump line to the tank to provide the liquid flow. Pressure Gauges. t t A properly calibrated pressure gauge of good quality should be installed in the line from pump to boom, between the boom and the shut-off valve. The gauge should be 3 to 4 inches in diameter, with a maximum reading of 150 to 200 psi. It should be easy to read from the operator's seat on the spray rig. Have gauges cali- brated each season by a reliable pump or sprayer service, or check them against an accurate gauge to make sure their read- ings are correct. df*?' * ' f. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Akesson, Norman B. (Norman Berndt), 1914-; Harvey, W. A. (William Alfred), 1914-1989. Berkeley, Calif. : University of California, College of Agriculture, Agricultural Experiment Station
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Keywords: ., bookcentury1900, bookpubli, booksubjectspraying, booksubjectweeds
