allis #78 & 79 air corn planter

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   What is the preferd air cut off pad long or short, I plant medium rounds and have always used the long pads? Thanks Dave

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automaticdave Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 20 Jan 2011 Location: Granton, ON Points: 250	Post Options Post Reply Quote automaticdave Report Post Thanks(0) Quote Reply Topic: allis #78 & 79 air corn planter Posted: 13 Apr 2021 at 8:21am
	What is the preferd air cut off pad long or short, I plant medium rounds and have always used the long pads? Thanks Dave

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21462	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 13 Apr 2021 at 9:07am
	Long pad only. Destroy all short pads.

rw Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 28 Oct 2009 Location: United States Points: 384	Post Options Post Reply Quote rw Report Post Thanks(0) Quote Reply Posted: 13 Apr 2021 at 8:16pm
	I could never get good singulation on corn with the long pads. Too many doubles. We no tilled and used agrox to nix the wire worms. Seed got kind of sticky if it was humid. Talc and graphite on the seed helped.

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21462	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 13 Apr 2021 at 8:45pm
	You were using the wrong sized seed discs for the seed being used. For a few seasons (77 Air Champ units) they had only small-medium-large corn discs. Finally in about 1979? they came with a "small medium" disc to fit between small and medium sizes. Also, the best singulation always came from graded seed and medium rounds. Any round was better than any flat. I serviced probably 50 of those air planters and I've spent lots of time on my knees digging up seed to see what was going on and long pads were best if everything else I've mentioned was done right.

rw Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 28 Oct 2009 Location: United States Points: 384	Post Options Post Reply Quote rw Report Post Thanks(0) Quote Reply Posted: 14 Apr 2021 at 9:36pm
	What was the problem you encountered with the short pads? I found them useful. We spent a good bit of time before we went to the field rotating the press wheel till the disk turned two full turns counting the seeds dropped. I could find the combination that would drop the closest to 90 seeds. There was also a small plate that could be removed to change the depth of the seed in the pick up area. I really liked the units. Right or wrong we valued the genetic package and appreciated we could change the set up to plant whatever size and shape of seed. And well graded medium rounds were the best if you could get them.

tbran Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Location: Paris Tn Points: 3493	Post Options Post Reply Quote tbran Report Post Thanks(0) Quote Reply Posted: 14 Apr 2021 at 11:33pm
	We always used the long pad to prevent skips. The only exception was when we used the blower systems off the White planter and upped the air pressure to 2.5 WC " of pressure - Then we used the short pads and added the tickler brushes off the milo kit to knock off doubles. This worked almost to perfection. The issue with the electric blowers was as the units aged the pressure dropped due to wear, resistance , dirt and leakages. We ran 2 12 row units on a 390 frame with a White blower system ... AC should have had a system to allow more pressure and also made it adjustable . Edited by tbran - 14 Apr 2021 at 11:34pm
	When told "it's not the money,it's the principle", remember, it's always the money..

rw Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 28 Oct 2009 Location: United States Points: 384	Post Options Post Reply Quote rw Report Post Thanks(0) Quote Reply Posted: 15 Apr 2021 at 4:36am
	I agree with all of this. The goofiest thing that happened was a corner of a broken kernel lodged in the vent hole of the disk. It did take a good bit of effort to get units to work near perfect.

nickia Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: alden iowa Points: 791	Post Options Post Reply Quote nickia Report Post Thanks(0) Quote Reply Posted: 15 Apr 2021 at 9:41am
	how and what did you have to do to plumb in a gauge to measure your pressure?

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21462	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 15 Apr 2021 at 9:49am
	A long rubber hose shoved thru the seed box into the seed disc chamber with a very low pressure gauge connected. Dump a couple gallons of seed in it to seal everything up. We are talking less than 2 psi pressure.