Airblast Spring Start-up and Winterizing

Any description of airblast sprayer start-up must, contextually, make assumptions on how it was winterized for long-term storage. This cyclic relationship is why I use a chicken-and-egg title slide when giving this presentation. The inability to describe one process without the other is further complicated by the possibility that the sprayer is brand new and was […]

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Selecting a Sprayer Pump

When I had to replace a pump on a small scale sprayer, I had a lot of questions about how they worked, their capacities, hose sizes, mounting solutions and fittings. I turned to the Pentair Hypro Shurflo catalog and found a very helpful guide on pages 2 – 10. This article summarizes the steps recommended […]

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Pressure spikes and relief valves on air-assist sprayers

A properly-sized pump should produce more flow than is needed and work in conjunction with the atomizers to regulate that flow. Typical to high pressure pumps, a piston relief valve (aka regulator) should maintain the desired system pressure through the normal speed range of the sprayer, regardless of the number of booms (or boom-sections) that […]

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Sprayer Wheel Maintenance

Replace the wheel and rim.

This article was co-written with Murray Thiessen, Consulting Agricultural Mechanic. Sprayer wheel assemblies should be cleaned and inspected as part of regular annual maintenance. Wheel bearing maintenance before long-term storage may prevent water from corroding the bearings. The exploded diagram details the parts found in a typical trailed air-assist sprayer wheel assembly. The following procedure was performed […]

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Airblast maintenance inspection – the morning walkaround

Adjusting the nozzles on a fishtail-style nursery sprayer.

An airblast sprayer inspection is part of preventative maintenance. This daily activity identifies small problems before they become big ones. You can do it at the filling station, so it’s fairly convenient. Don’t think of it as stealing time from your spray day… it’s part of your spray day. Don’t skip it. If time is […]

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