Toro produces several different types of sprinklers, but the same basic adjustment techniques apply to their two major sprinkler head designs. Toro sprinkler heads are available in both fixed-spray sprinklers and rotating sprinklers. In both cases, several models are available with slightly different configurations and capabilities. Below is a brief guide to adjusting the two major types of Toro sprinkler heads.
As currently designed, Toro fixed-spray sprinkler heads are not adjustable per se. Rather, in order to increase or decrease the area of coverage, or to increase or decrease the arc of coverage, you must replace the fixed-spray sprinkler head with a model that meets your needs. For example, if you use Toro’s 570 Series MPR fixed-spray sprinkler heads, you can choose from four watering patterns (90, 180, 270, and 360 degrees) and five watering distances (between five feet and 15 feet).
To change your fixed-spray sprinkler heads, first make sure the system’s main control valve is off. Then unscrew the old sprinkler heads, being careful not to let any debris into the sprinkler line. Screw the new sprinkler head into place until it is snug, but no further. Now rotate the sprinkler head on its pipe fitting until the indicator on the nozzle head is properly aligned to the left edge or your desired spraying arc. Turn on the main control valve and run some water through the system to test the heads and the spray pattern.
Typically, Toro rotating sprinklers can be set to water between 45 degrees and 360 degrees of the landscape surrounding the sprinkler head, though this varies from model to model. The leftmost edge of the watering arc is fixed, while the rightmost edge can be adjusted. To decrease the current spray arc, first gently rotate the sprinkler head to the rightmost edge of its current watering arc. Now press and hold the nozzle down and turn it to left. When you lift the nozzle back up, that point will be the new right edge of the watering arc. To increase the arc, rotate the head to the rightmost edge, press and hold the nozzle down, and rotate it to the right until you reach the desired arc.