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Diaphram pump cycling help

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  • Diaphram pump cycling help

    Hey guys so I run a 1.5 inch Aro alum pump which has been running great. Last week I mounted a surge bottle above the pump and ever since then Its not building pressure to pump to wand. So I dismounted surge bottle and put plug in, still no pressure. Just cycles nonstop, any ideas? Air comp pressure good, sealer flows out lower valve good, basket is clean...

  • #2
    Check for an air leak . My supply hose had a small leak in it that caused that . Of course I didn’t find it until I had taken the entire pump apart and cleaned the balls, seats and diaphragms
    Warren

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    • #3
      You might try to add an oiler to the air line. Most MFG's say they are not needed, but it helped us.
       

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      • #4
        I second what asphaltman posted ^^^^ I would also add to try and drain the drain in your compressor as there may be water in it or in the lines.

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