T- Bird
The T- Bird is Rain Bird’s first gear driven sprinkler. It is designed to operate in the 25-60 PSI range and cover a radius of 16-30’. It has a pressure compensating flow bushing, resulting in matched precipitation and pressure activated wiper seal.

Arc Adjustment:

To increase the arc - Keep in mind that the part circle T- Bird comes preset at 180°. Pull up on the stem, and while holding the textured area, rotate the nozzle until it is turning to the right (clockwise). Slide the vandal collar out of its groove. Push down on the nozzle, and rotate it to the right until the desired arc is obtained. Pull up slightly on the nozzle, making sure to replace the vandal collar when finished.

To decrease the arc - Pull up on the stem, and while holding the textured area,rotate the nozzle until it just trips at the left stop. Slide the vandal collar out of its groove. Push down on the nozzle, and rotate it to the left (counter-clockwise) until the desired arc is obtained. Pull up slightly on the nozzle, and again be sure to replace the vandal collar. Failure to replace the collar will cause the riser to stay up just a bit. (If it doesn’t seal completely, the famed sprinkler harvester comes along and eats the sprinkler!)