Join Date: Apr 2014
Location: central manitoba
Mentioned: 2 Post(s)
Quoted: 909 Post(s)
Once you have a history (ie notebook from past years) the calculation for changing driven gear to adjust rates works pretty well:
Known lbs/ac x used driven teeth ÷ desired lbs/ac = required driven teeth
Do you ever go back and look at some of the pages from a year or two ago and wonder what the he!! was I trying to figure out there!!! Sometimes it looks like I was trying to land a ship on the moon!
We have a mechanical Bourgault tank also and like you said, can pretty much go with the same sprockets from year to year. They are very accurate. We put 46 down with an older Bourgault drill, and have to keep fiddling with the settings a bit because the coarseness of the product changes load to load.
Like you said, the best way to get it set right is to fill it right up, that way you know how much is in it with the cubic densities of the products. I know people say doing it by bushels is old school, but if you use bushels by volume and not weight, it is pretty much bang on for plant densities. I tried the 1000 kernal seed way a few times, and worked out to the exact same settings anyway, so I will keep rockin' it old school!
It's easy enough to be pleasant, when life goes by like a song. But the man worth while, is the man with a smile, when everything goes dead wrong!
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