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Commercial Rotors

I-80 Arc Adjustments

Individual I-80 nozzles cannot be adjusted to reduce the radius. To change the radius, install a larger or smaller nozzle. 

Adjustments (not for “ON” opposing-nozzle models)

All I-80 adjustable arc rotors are preset to approximately 180°. Sprinklers can be adjusted with water on or off. It is recommended that initial arc adjustments be made before installation.

  1. Use your hand to rotate the nozzle turret counterclockwise to the left stop to complete any interrupted rotation cycle.
  2. Next, rotate the nozzle turret clockwise to the right stop. This is the fixed side of the arc. The nozzle turret must be held in this position for all arc adjustments.
  3. The ratchet feature allows the right fixed stop to be moved when water is off. Pull the riser up, grab the riser below adjustment ring, and rotate the right fixed arc stop to the desired landscape alignment.

To Increase Arc

Figure 1

  1. Slide the adjustment wrench (PN 382800SP) onto the grey adjustment ring below the nozzle turret (Figure 1).
  2. While holding the nozzle turret at the right stop, turn the wrench counterclockwise.
  3. Adjust to any arc between 60° and 360°. The wrench will stop turning when the maximum arc (360°) is reached. When set to 360°, the sprinkler will rotate continually counterclockwise.

To Decrease Arc

  1. Slide the adjustment wrench PN 382800SP onto the grey adjustment ring below the nozzle turret.
  2. If the arc is set to less than 360°, hold the nozzle turret at the right stop and turn the wrench clockwise.
  3. If the arc is set to 360°, turn the wrench clockwise. Then proceed with #2 above to complete the adjustment.
  4. Adjust to any arc between 60° and 360°. The wrench will stop turning when the minimum arc (50°) is reached.
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