How to Adjust a Rain Bird Rotor Sprinkler

Rain Bird is one of the largest manufacturers of residential and commercial sprinklers and irrigation equipment. As of 2011, the company offered five lines of rotor sprinkler heads. Each of the sprinklers operates the same. As water pressure moves through the nozzle, it turns a series of small gears inside the sprinkler body. The gears rotate the sprinkler head up to 360 degrees as a single stream of water flows across the lawn. Both the stream and the rotation can be adjusted at the nozzle.

Rain Bird sprinklers

Instructions

- 1
  Turn the sprinklers on by setting the sprinkler timer to the "test" or "manual run" position.
- 2
  Insert a flat blade screwdriver into the arc adjustment screw, which is the larger of the two screws located on the top of the nozzle.
- 3
  Turn the arc adjustment screw clockwise to increase the amount of a full circle that you want the spray to cover. The arc is adjustable from 40 to 360 degrees on most models. Turn the arc adjustment screw counterclockwise to decrease the amount of the spray arc.
- 4
  Insert the screwdriver into the radius reduction screw, which is the smaller of the two screws located on top of the nozzle.
- 5
  Turn the screw clockwise to decrease the distance of the water spray up to 25 percent. Turn the screw counterclockwise to increase the distance of the water spray up to 25 percent. This is useful for reaching shrubs, or reducing over spray on driveways or streets.

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