How to Adjust a Rainbird Rotary Sprinkler Head

Properly adjusted, a Rainbird rotary sprinkler sprays only where you want it to.

Rainbird rotary sprinkler heads use gear-driven mechanisms to irrigate defined areas in lawns and gardens. The design of the Rainbird rotary sprinkler allows the pop-up section in the center of the unit to turn to the far left, setting a starting point for the sprinkler. An adjustable arc dial on top of the sprinkler allows you to set the angle of the spray arc. Properly set, a Rainbird sprinkler will cover only the defined area and avoid spraying on areas such as walks, driveways, buildings and patios. Adjusting a Rainbird sprinkler takes only a few minutes.

Things You'll Need

• Small flat-head screwdriver

Instructions

1. Turn the pop-up section in the center of the sprinkler to the far right, with your thumb, then turn the pop-up section back all the way to the left. This point is the sprinkler's left starting point.

2. Adjust the body of the sprinkler in the standup that supplies water to the sprinkler so the left starting point aligns with the far left side of the area you want to irrigate.

3. Turn the arc dial on the pop-up section of the sprinkler using the screwdriver. Rotate the arc dial clockwise to make the arc larger or counterclockwise to make the arc smaller. Avoid setting the arc dial to less than 40 degrees or to 360 degrees, which can cause the gears in the sprinkler to bind.

4. Turn the screw point on the edge of the pop-up section by the spray nozzle to adjust the distance the spray travels.

References

• Rainbird: 32SA Pop-up Gear Driven Rotor
• Rainbird: 42SA Heavy Duty Simple Adjust Rotor