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jd730
Member

Hypro d252 pump on JD 750 drill

   I bought a used 750 no-till drill and it came with a liquid fertilizer system, but obviously no instructions.  I have a Hypro D252 pump, a 300 gallon tank, and a manifold by Blumhardt.  The pump is driven off of the seed shaft.  What do I need to know to calibrate this set-up?  Will a change in speed affect the rate or pressure?  How do I regulate the pressure and do I need a return line?

  This is my first attempt at using liquid and either I'm confused or missing something.

 

Thanks,

John

PS the drill also has the half speed kit if it matters.

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