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F3 in Wheat Settings

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bharper View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bharper Quote  Post ReplyReply Direct Link To This Post Topic: F3 in Wheat Settings
    Posted: 22 Jun 2020 at 11:36pm
I have some wheat to cut that has fairly thick and rank straw that I plan on baling.  I have the combine set close to what the book recommends but it still seems to be dropping more wheat than I'd like to see right off the back of the chaffer.  With the chaffer set like the book suggests at 3/4 it is basically all the way open and I don't feel like I am crowding the combine.  I have 3 sets of concaves, cylinders almost closed and around 1000 rpm, 3/4 chaffer and 3/8- on the sieves with the fan 6-7.  Just curious what other thoughts were out there on settings, I was just hoping that I could tune it in a little better for this crop.  I laid a pan out in the field and drove over it while cutting and there wasn't many good kernels in it but mostly shrivled light kernels.  But walking behind it sure seems to be throwing some over.  I know that the machine isn't new but thought maybe I could try something a little different on it.  Thanks
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Lonn View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2020 at 7:18am
I'd say the pan is telling the story but if you aren't satisfied then play with the fan setting, chaffer, sieve etc. Change one thing at a time and recheck results..... if gets worse or no change then put it back to where it was and change something else.
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DrAllis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2020 at 7:26am
The age of the combine has NOTHING to do with it. It is the condition of the parts on the combine and their settings. I'm not a wheat guy, but worn cylinder bars are bad, too slow of cylinder speed is bad and 3/4" open on the chaffer is too wide, regardless of what the book says. You CANNOT use a corn chaffer to do wheat and expect good results !!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC7060IL Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2020 at 8:17am
What testweight does your field’s grain sample reveal at your local elevator(s)??
Smaller lighter kernels being fanned over the rear may not be as bad as imagined? Usually, any lighter grains can contribute to lower testweight which may receive a heavy dock for a WHOLE trailer~wagon of grain.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ray54 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2020 at 2:02pm
Wink It's worth what your paying. But what I did to set and adjust.
* Good grain is real hard to blow out the back. So lots of wind top of book or a little more.
*Not enough wind lets straw lay as a mat, harder for grain to fall throw it,so can ride out on top of straw.
*I like to start with chaffer in a open setting as per the book(some times needs more,but generally not),then start closing to make what is in the bin look better. 
*A little straw in the grain is not as bad as grain on the ground. But needs to be balanced against the dockage  and grade the buyer is giving it.(never stored any always from field to commercial warehouse with a test weight from returning truck.)




As others stated light kernels generally don't pay as they lower test weight,so you need to be critical of what you find on the ground.  But always nice to have a good looking sample Wink especially when other see it at the warehouse. I have cut grain for growers that where unhappy with a real clean sample,thought you had to be leaving some behind and thought chaff was pounds (west coast always used pounds not bushels) in the truck.
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MACK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2020 at 10:04pm
You will ride more wheat out the back than blow it out. So open chaffer and air and go.          MACK
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tbran View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tbran Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jun 2020 at 10:32pm
When called about loss, we just can't give advice until we know the exact loss.... We get dozens of calls each harvest season "seems like"  - We have to say get the book out , check the loss and report back as to the walker/cylinder and shoe loss.  IF anyone has 1% or less loss - you are an expert = no adjustment needed.  We used to spend days adjusting on machines just to realize we were spending more in fuel burnt than grain lost.   As an example we had a R62 that the customer complained about those shriveled heads on the ground. We adjusted and worked with the air until he was satisfied. Took off a load of wheat and the test weight was terrible. The elevator told him open u the air and blow out those blasted heads to up the test weight - so he went back to factory settings and we wasted 2 days.... and he made less money those 2 days.  
When told "it's not the money,it's the principle", remember, it's always the money..
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