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Slowing Ground Speed on a WC with Mounted Corn ick

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AC7040 View Drop Down
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    Posted: 16 Nov 2019 at 8:46pm
Hello all. I attempted to pick some corn with my mounted corn picker on a WC this fall. Field had a great stand and was in the 185 195 bushel average. I had some difficulty with the corn picker wanting to plug. Just couldn't seem to handle pulled the stalk down quick enough to snap the ear off before the next stalk came in and the process started over. I know I'm asking a lot of the picker being in today's corn verus it's hayday back 50 years ago. Ive read some past topics about the stalks needing a little mosture to make the picker work at its best so that could be some of the problem that I'm having. Guess I'm wondering if slowing the ground speed would help? Read some past topics on this forum about ways to slow a a WC down; add a Thompson Over/Underdrive, adding a second transmission, smaller rear tires (currently have 14.9 x 28), and maybe even an RC transmission? Guess looking for ideas and suggestions. My big goal is to get this picker working good enough to harvest some corn at the Half Century of Progress show. Need to make sure AC represented well
1953-WD45, 1949-G, 1950s Snap-Coupler All-Crop Drill, 1956 Roto-Baler, 1945 All Crop 60, Snap Coupler Subsoiler, Plow, Gleaner F, 505 wagon
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 16 Nov 2019 at 9:47pm
RC rear end. Also, speed up the picker with a larger sprocket on the PTO.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 5:34am
Smaller tires would be the easiest thing, find a pair of 11.2X28 tires. They are generally a low profile design, the 14.9 is a high profile design.  A transmission from the RC is the same as the WC.  The bigger PTO sprocket will also be easy
If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tomNE Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 5:47am
my dad bought a picker in the vintage brand new; he always claimed it was engineered for 40bpa corn.   He only kept it a short time.  traded it in on an oliver and mounted it on the WD.     We had that till we quit raising corn.
AC from the start of my families farming career till the end!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Phil48ACWC Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 6:18am
14.9 X 28 tires are too big, but you may need to go with a 24" rim and smaller tire. Check tire outside diameters to determine speed reduction to make a decision.  A 14.9 X 28 tire has a 53.8" diameter. A standard WC in 1st gear with the original size tires of 11 X 28 with a diameter of 47.4" has a ground speed of 2.5 MPH at engine speed of 1300 RPM. 53.8 - 47.4 = 6.4" and 6.4/47.4=13.5% bigger diameter than the original WC tire of 11 X 28. That would give a ground speed of 113.5% X 2.5 MPH = 2.84 MPH with your large 14.9 X 28 tires. 2.84 vs 2.5 MPH is significant. Tire size certainly has an influence but changing tire size is costly. A Sherman reduction or a second transmission would help more but also costly. Click below and click on tire to see tire diameters. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lon(MN) Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 6:28am
That problem has been around for a while. The picker I have is mounted on a WC with the lower gears and also has the wet hand clutch. Hard to find those parts now.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AaronSEIA Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 6:38am
Sherman underdrive would help.  Best thing to do is plant the corn at 20,000 or so population like it would have been when that picker was new.  Dad plants an acre or so every year with a 290 Deere and picks it with his Massey mounted picker.  Does very well.
AaronSEIA
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 6:43am
An "RC" rear end is 6.6 to 1 which is 30% slower than a "WC" at 4.7 to 1.  This takes 2.5 MPH down to 1.75 MPH, which is way more than any tire swap will give you.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JayIN Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 8:10am
The corn at 50 years of Progress show is 85 day corn. Planted on 38" rows at a much lower population than what is planted today. The I&I club could be contacted for better information. John Fredrickson (219 863 1270) is co- chair of the show and Roger Musson (217 369 2383) is the man to see about the corn pickers. Best Show on Earth!

Edited by JayIN - 17 Nov 2019 at 8:36am
sometimes I walk out to my shop and look around and think "Who's the idiot that owns this place?"
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JC-WI Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 10:35am
On the old WD, the first gear was faster than the newer WD/WD45... and when dad put on the 12.4 on from the 11.2 he had to slip the hand clutch a lot more. First problem with the picker was the flutes weren't long enough in front of the bearing, next was the chain running across the husking rolls couldn't move the corn fast enough to prevent build up and having corn go over the top, and the stalks that did pass through didn't always go out the stalk ejectors but would get crossways in the hopper... and the elevator could have been just 2 inches wider and an inch taller and not have ears coming over the sides.
 Allis did have a picker with a second chain above the husking bed and they also had a picker with paddle wheels over the bearing area as I recall but you couldn't have both the send chain and the paddle wheel at the same time. and for the clean husked corn, you needed good rubber rolls in it, not worn flat smooth rolls. 
 Of course, any shelling that took place went right back on the ground.  We picked a lot of corn with the old 33 picker. Had an older NI picker that looked good but could not picker any faster than the 33... the 324 picked better, but that had wear in the snapping rolls and had to keep your speed down. but they had the husking bed that caught the shelled corn and put that in the wagon.     Allis's 3 digit numbered pickers, 150, 170, 190 models had were designed to catch the shelled corn too.
  Put your picker on a WD45 and see if it picks better.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC7040 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 3:42pm
A big thank you to all for your knowledge and suggestions! I did just purchase a wd45 with a single front wheel and thinking, as long as I have the brackets, of mounting picker on it. Little slower ground speed and also hand clutch be nice. As mentioned tires are a little pricey aorund here so I'll try to hold off on that option. I will keep an eye out for a RC parts tractor as that sounds like a option too. Bad news is I won't be able to test the combination for a year.
1953-WD45, 1949-G, 1950s Snap-Coupler All-Crop Drill, 1956 Roto-Baler, 1945 All Crop 60, Snap Coupler Subsoiler, Plow, Gleaner F, 505 wagon
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC7040 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 9:18pm

So after taking a gander in my corn picker book to see what mounts I need to go from WC to WD mount and realize Im missing some brackets. Surprisingly, I did find the two brackets that hold the rear of the picker on a parts WD that I have. I did take a second look at the tires on the corn picker tractor ans I was incorrect about them being 14.9-28, they're actually 13.6-28. Now my understanding is the first number is the width and the second is rim size. On my other WC I have rear tires with a size of 14.9-24. based on my calculations I'll be going from 2.72mph to 2.62mph if I swap tires. may have to keep an eye out for a parts RC with a good rear end
1953-WD45, 1949-G, 1950s Snap-Coupler All-Crop Drill, 1956 Roto-Baler, 1945 All Crop 60, Snap Coupler Subsoiler, Plow, Gleaner F, 505 wagon
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gerald J. Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 2019 at 9:05am
The first number on a tire is the width of the tire when inflated typically about half way from the rim to the tread. Long ago that first number was the rim width. The wider the tire generally the taller the tire but not necessarily the mathematically proportions.

The tire outside diameter is shown in the tables in the ag tire handbooks from modern tire makers and maybe Miller Tire on line.

Another consideration for tractor rear tires is the load handling capability when fully inflated, another thing in the ag tire handbooks.

Gerald J.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G.  NY Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 2019 at 1:55pm
Originally posted by Lon(MN) Lon(MN) wrote:

That problem has been around for a while. The picker I have is mounted on a WC with the lower gears and also has the wet hand clutch. Hard to find those parts now.

I didn't know about this.....seems I remember discussion of an aftermarket "dry" hand clutch for the WC though.
Was this an AC option or aftermarket?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 19 Nov 2019 at 6:29am
Aftermarket only
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 19 Nov 2019 at 6:39am
My Dad had a 33 picker on a WC back in the '70s. It was always too fast but that was about the time the plant population went to about 25,000 or 26,000 in 38" rows. He called it a sunshine picker because it picked great when everything was nice and dry. He also had an F20 with an IH picker. It picked through anything but it also did something else the Allis wouldn't do...... it left yellow streaks of corn on the ground in each row. On the Allis, there are rubber plugs and clips that need to be replaced when they wear out or it won't pick right. That's according to my Dad as I have no real experience with one.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JC-WI Quote  Post ReplyReply Direct Link To This Post Posted: 19 Nov 2019 at 12:33pm
"Allis, there are rubber plugs and clips that need to be replaced when they wear out or it won't pick right."
 That was one style of roll, then there was a solid rubber roll, and the best was a roll that was rubber, but was cuttouts from belting or old car tires with a ripple edge  to them and they were the best to husk the corn. The peg style were aggresive at catching the kernals and shelling the cob too... or so I was told. dad ha them on the picker and then went to the rubber rolls.
He who says there is no evil has already deceived himself
The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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