More harvest shots

Bradley K

Member
Here's a couple more shots of unloading and grain tank samples. One thing I did last year to improve capacity was remove the bottom sieve. Was a little concerned about getting too much cob or trash, but it wasn't an issue and definitely helps get more material through the machine.

My crop goes straight to the elevator (turkey feed), I believe every load was .5%BCFM, basically the standard they give everybody unless really excessive. Honestly I saw some loads that I know came from new combines that had more cob pieces in the sample than mine.

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I never heard of removing the bottom sieve,, I take it the sieve was causing the Corn to go out the back creating loss? interesting as I have never ran Corn here in Wheat country
cnt
 
Look for the pics in the next post, that were supposed to be here.

Taking out the bottom sieve doesn't change anything about corn going out the back. Mostly prevents excessive corn going over the bottom sieve and recycled through the tailings elevator.
This reduces capacity, takes power, and causes more kernel damage. On the older machines the bottom sieves weren't really designed for corn, and it's hard to find the correct ones with a wide spacing and deep tooth design necessary for corn.

If you don't have that style of sieve it seems to plug up with bits of cob, etc; reducing performance and needs to be cleaned out quite often. Also going up a hill you will send a lot through the tailings.

I'm able to still keep the chaffer quite wide and get a good sample, with more air flow to clean better at the chaffer. I also took out the windboards, (air deflectors). Higher air flow keeps the light cob and stalk material going out the back, while letting the kernels drop through right away.

If you can find a copy of the old Ray Stueckle book about setting combines, it does a great job explaining this principle and how to set up combines to do a better job.
 
Thanks for the tip, been running combing and setting them myself since 1969, I can set them fine in small grains and grasses I still hold the cleanest sample award our local elevator has posted using my vintage CASE machines, just wondered why you needed to remove the sieve, I can open mine up and increase air easy to keep from carrying into the return even in 100 bpa Wheat and still has less then a 1/2 percent of dockage, here is a bin shot of Oats for you, I never have to clean my seed when planting as I can clean it so well, thanks again for the pics
cnt
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Casenutty your in an entirely different crop condition as 200 bushel corn is. These old combines where designed for 100 bushel per care corn. It is amazing they will handle the extra yield. I bet he was not setting any speed records thought.

Nice pictures of a great crop and great old machine harvesting it.
 
Yes different crops for sure, I have a good friend who ran four CASE 1665's in 200-240 bpa Corn in MI for many years, they never took the bottom sieve out and they worked fine, they were going as slow as they would move though with 6 row heads, he said as he would turn around at the end the clean grain auger would still be running full as he turned around and would be starting to clean out when he started on the next row,, CASE deigned these for 125 + crops, I have to agree these older machines are still impressive even can handle these high yielding crops today as well as they do, I have found in my years combing various crops that the small seeds like Crested Wheat grass and Alfalfa seed ect is a challenge to learn how to set them to save and clean the crop,,, some day I will get a crop of Corn to mature enough here to run some through my 660 setup for Corn,, be interesting to do it once for me,, the question I had was just why he took it out, I can see it worked for him, I just do not feel from what my friend told me it would not help much on the 1665's as the elevator was moving all it could with the sieve in place is all,, Thanks for the info guys!
cnt
 
You have to remember the Case combines you have mentioned are a newer design then what Brad is running. That design goes all the way back to the 40s with the 55. And the 55 was based off the pull type No 9 introduced in the late 30s. You said Case designed the 16XXs for 125 bu corn. When JD designed the 55 nobody was combining corn. JD did do small mods like switching the drive on the clean grain elevator from the bottom to top drive. But overall not much was changed or had to be changed.

After seeing Brads pics it just made me think that its a real testament IMO to the JD engineers of the 40s when nobody knew how a SP combine should look like, to how they were able to design a combine that was innovative and so good that it was competitive, and could hold its own all the way into the late 60s. Not bad for a 22 year production run. Imagine trying Case trying to stretch the No 12 combine into the late 60s?
 
the 800/1000 CASE came out in 1958 and continued with few changes other than tin work through 1970, I am not saying anything bad about the JD units, they were and are fine machines, I was just asking a question sorry if it was taken any other way, I meat to say the "600" combine introduced in 1962 was the first based on those bpa's, CASE always had a large cleaning and separating area even dating back to the threshing machines in the 1800's, I like learning about other brands I have not been around, we had two JD 95's cut for us back around 1967, they seemed to do a good job, in the later years mid 80's early 90's my Dad was still running the farm and he had a guy from Neb. cut for 12 years or so, he ran JD machines as well, the 8820 he ran for 9 years seemed to be a good dependable machine that did a decent job saving and not cracking Wheat to bad, when he went to a 9600 things changed, I am not sure it was really the machines fault but it would throw it out the back and crack a Lot of it, one year when Wheat was $1.92 a bushel here he cost me $1.00 a bushel dockage, that was his last year cutting for me, charged me $9800.00 to cut it and I had 32,000 bushel of Wheat that year, I went and bought my 69 1660 and another 960 and have cut my own since, the year before this happened I ran his 9600 for him and cut 2500 acres with it and did not have half the dockage he did running it so I know the machine would do a much better job than with him at the wheel, all he cared about was acres,, Not how I roll lol from 1973 or 74 we had two new 760 MF cut for us, they really seemed like good machines as well and did a good job all around,, sorry for the ramble
cnt
cnt
 
It makes perfect sense. There was no such of a thing as 200 bushel corn when your combine was manufactured. The newer combines will give trashy samples if the cylinder is not full at all times.
 
Brad, with all due respect I have read and heard of some of the recommendations in that book and sometime scratch my head. It seems many of the "tips" involve putting a band-aid on a problem instead of fixing the underlying problem. It appears you are busting quite a bit of cobs from the grain tank sample and that would definitely cause trouble if not addressed. Removing the sieve did not fix the underlying problem of either too fast cylinder speed or too tight on the concave. Also, very little air actually goes through the sieve on any combine so that had little effect on the air flow to the chaffer. I have run combines in heavy corn with both types of bottom sieves and with everything else right on the combine there will be no problem with the bottom sieve, whether you are in high moisture corn or not. I don't want to come across as harsh but it appears you have problems with the combine that yet need to be addressed. Mike
 
Love the long rambles like mine! lol Hard to learn much from one or two lines and if i need to get a another combine ,its helpful to have every little bit of info no matter how small or trivial because when you go to buy a combine and may have to settle for a couple youve never been around.Something tiny may become huge. On my scale of 30 acres max i can get al9ong with any old thing that i can repair and get parts for.
:D
 

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