Air Blast Sprayer Pre-Calibration Instructions

Prior to having Penn State calibrate your air blast sprayer, the following tasks must be completed.
Air Blast Sprayer Pre-Calibration Instructions - Articles
Air Blast Sprayer Pre-Calibration Instructions

Prior to having Penn State calibrate your air blast sprayer, please complete the following tasks:

  • Triple rinse tank and piping. Take special care to flush manifolds and nozzles.
  • Pressure wash sprayers. Pay special attention to cleaning both sides of nozzles and around pump and filters.
  • Clean nozzles and record orifice and whirl disc sizes.
  • Flush out line to pressure gauge.
  • Clean filters, including: tank filters, suction filters, final filters, and every screen behind nozzles.
  • Make sure all valves, diaphragms, and O-rings are in good condition and working properly.
  • Check tire pressures on both sprayer and tractor.
  • Make sure tachometer is working on tractor.
  • Measure and mark off a 200 foot straight “course” that can be used to time tractor speed to determine actual MPH.
  • Fill sprayer ½ full with clean water.
  • Have sprayer operator’s manual on hand for reference if needed.

If possible, have any operators or mechanics that work with the sprayer/ tractor combination on hand for the sprayer calibration.

Visit Penn State Extension's information page to learn more about our sprayer calibration service.