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Evaporative Cooler Variable Motor Pulley


Zinc 3-3/4" x 1/2" variable motor pulley for 1/2 or 3/4 HP motors.

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IMPORTANT: Variable Pulleys must be opened 2-1/2 to 5 full turns (depending on air resistance) or motor will overheat. If motor cycles (stops and starts due to over-heating), open variable pulley until motor stops cycling. If cycling persists when pulley is fully opened, you must use next SMALLER pulley. Always use pulley size recommended by cooler manufacturer.
  • Catalog Page (vol 20): 71
  • UPC026529615105
  • MPN6151

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