Commercial Rotors

Welcome to the commercial rotor support section. Below you can identify the rotary sprinkler model you may have and find information on installing, adjusting, maintaining and troubleshooting your rotor.

  • I-25 - Adjust
  • I-40 - Adjust
    The I-40 rotor has an optional opposing nozzle, indicated by the model number ending in -ON. The adjustment instructions for the opposing nozzle model are listed separately from
  • I-80 - Adjust
    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
  • I-90 - Adjust
    I-90 Rotor Adjustment Sockets Arc Adjustment (I-90 ADV only) Aligning the Right (Fixed) Side of the Arc (I-90 ADV only) Precipitation Rate Adjustment
  • I-80 - Stator Adjustment
      All I-80 Rotors with nozzles 23 through 53 have a manually adjustable stator to control rotation speed (Figure 9). When the primary nozzle size is changed, the stator must
  • I-90 - Stator Adjustment
    When installing nozzles, you must also correctly set the stator to ensure proper speed of rotation. Failure to correctly set the stator may cause a non-rotation condition. Remove
  • I-40 - Turf Cup Kit
    A Turf Cup Kit (P/N TURFCUPKITI40) is a great user-installed option for blending a rotor into the surrounding field material.
  • I-80 - Turf Cup Kit
      A Turf Cup Kit (P/N 959400SP) is a great user-installed option for blending a rotor into the surrounding field material. NOTE: To remove the snap ring after the Turf
  • I-90 - Turf Cup Kit
    A Turf Cup Kit (P/N 467955) is a great user-installed option for blending a rotor into the surrounding field material.
  • Filter Information
    The included filter at our commercial rotor base will protect the internal gear drive from larger particles for longevity. In some cases, the filter can be plugged, slowing down,
  • Stainless Steel vs Plastic
  • I-80 - Riser Removal
    All I-80 Rotors have a traditional body cap that may be unscrewed to gain riser assembly access. To facilitate easy riser assembly removal, all I-80 Rotors also include a removable
  • Non Rotation
    Hunter rotary sprinklers operate on a “gear drive” system. When in operation, water turns a small turbine in the base of the sprinkler, which drives a series of gears that cause
  • I-25 Replacement Guide
    Receive Hunter quality and Hunter performance with the right substitute for your non-Hunter sprinklers.
  • I-40 Replacement Guide
    Receive Hunter quality and Hunter performance with the right substitute for your non-Hunter sprinklers.

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