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800, 900, 950 ,955 cycle air systems
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OlsonKrist
Posted 2/23/2017 17:18 (#5858566 - in reply to #5858495)
Subject: RE: 800, 900, 950 ,955 cycle air systems


nw MN		Sounds like a great plan. Will you take the seed boxes off? Convert to fertilizer?

I had thought about getting a larger air drill fan and running hoses to the boxes instead of the fans under each unit, but I have no idea how much air the cyclo fans move and how to figure how big a single fan I would need. The hydraulic motors on the cyclo fans are very fussy about return pressure. They don't have a case drain, just an inlet and an outlet. If there is any backpressure it will be directly on the seal and 250psi will blow them right out. You absolutely need a pressure free return on the tractor, if you return it into the remote(at least in my experience) the motor seals will not last, too much return pressure and surges when lifting implement. I teed all the pressure lines together to my motors and it operates well. Hydraulic flow goes to the path of least resistance and that keeps the motors operating at very close to the same speed and creating the same air pressure. (unless a motor is bad) I assume you have hydraulic flow control on your tractor remotes to set speed but you will probably need everything the tractor can give and may have to use 2 remotes to get the required flow. You will want to plumb a coast check valve into the circuit to prevent damage in case of closing the remote (diagram attached). With 4 motors you might want to think about a hydraulic cooler on the return side just in case you get a hot day or 2 when planting.

Edited by OlsonKrist 2/23/2017 17:32




(Motor coast check diagram.bmp)



Attachments
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Attachments Motor coast check diagram.bmp (730KB - 158 downloads)
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