[tman]

Has anyone found a max amount of dry fertilizer that you can put through a seedhawk without plugging the primary hoses solid? Twice today, after seeding 1100 ac of canola with 295 lbs of fertilizer with no plugging, I've plugged the primaries including the aluminum tubes right at the rollers. After plugging the primaries going to the far outside towers during the first 80 acres of the canola, I geared down to 4.1 mph from 4.5. No issues until today. So now I'll gear down more and maybe even turn down the rate. Hydraulic for fan is maxed out. My only thought that the plugging must start when there is more hydraulics used when the openers are raised/lowered, resulting in the fan to drop rpms. This is in a 60', 12" spacing SCT.

 

[scotsburn]

I'm putting down 370lb blend on canola at 4.4 mph on 70' 7 tower drill. Run into troubles on hot days with hoses sagging. I've cut as much off of hoses as possible but maxed at 4.4 sometimes 4.

That's a 2016 drill with high capacity fans my old seed hawk 6612 with 800 tank I was lucky to get that rate down usually sat at 4 mph or put on lower rate.

 

[Ned Williams]

I would check for minor air leaks. Also if there are minor changes in fertilizer quality this could be impacting you. Little things like this when applying product at the upper end of the machine's capability tend to become big things. Considering how unrelentingly dry it's been you can at least eliminate humidity changing the density of the air.

 

[tman]

I'm learning since it's the first time I'm handling this much dry. The product support guy from the dealer told me that air temperature is also a factor. Learn from experience and my mistakes, even though I prefer to learn from other peoples experiences and mistakes when possible.