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.

  • Installation Details
    It's important to have an irrigation design plan, and hydraulics (PSI and GPM) inspected at the site before installation. If necessary, please contact a professional. Hunter
  • I-25 Nozzle Installation
  • I-40 Nozzle Installation
  • I-80 Nozzle Installation
    Primary Nozzle Removal and Installation Figure 2 Figure 3Insert the hex-key end of the Hunter wrench into the primary nozzle “arrow” located on the top of the rubber cover. Raise
  • I-90 Nozzle Installation
    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. Click
  • Shutoff Cap
  • Swing Joints
    Heavy-duty HSJ Swing Joints are available in a range of inlet, outlet, size, and length configurations for any irrigation system. Pair them one-for-one with any Hunter golf 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
    Nozzle Removal and ReplacementSTEP ONESTEP TWORemove the logo cap, which is retained by a central Phillips screw.The nozzle is retained in the nozzle housing by a setscrew. Back
  • 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
     Figure 10 Figure 11All I-80 rotors include a removable snap ring on the body cap to facilitate easy riser assembly removal. To access the riser assembly using the snap ring, use
  • 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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