Variable stream rotor s790 - The Combine Forum
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post #1 of 5 (permalink) Old 08-09-2019, 10:30 AM Thread Starter
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Variable stream rotor s790

Seems no one has much good to say about these. What do I have to do for them to work well in wheat? I got pfp variable stream bars (15) and added extra narrow concaves in front 2 full sections Then plan to run a large wire in rear concave.

I see there is a dense pack option and I am wondering if I should add that while we have it torn apart.

Be 60-100 bushel spring wheat. Valda, ingmar and Rockford varieties.

Thanks

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post #2 of 5 (permalink) Old 08-12-2019, 11:06 PM
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Our fix on 680 with variable stream was to tighten concave almost right tight, uses some power but cleaned up sample and reduced losses. Rotor speed fast as it'll go and using sunnybrook all crop concave.

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post #3 of 5 (permalink) Old Today, 06:23 AM Thread Starter
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I’ve got extra narrow wires in front 2 then a large wire in back. Also installed threshing elements from pfp that have 9 rasps versus the 4 on JD. Hope it helps and I can get a lot done.

Pfp says 15-30 on concave with their parts. I’ll see if I can get by with 20 to start. Have a friend running that setup
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post #4 of 5 (permalink) Old Today, 06:30 AM Thread Starter
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I’m wandering if I should also get the dense pack along with what I have?
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post #5 of 5 (permalink) Unread Today, 03:36 PM
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I found the dense pack helped a lot in hard red spring wheat. Was worse though in all the rest of the crops that I harvest (peas, barley and canola) because there was more material going on the cleaning shoe. Normally hot and dry here at harvest, so straw breakup is a big problem.

The variable stream rotor is a poor choice for hard red spring wheat, but a better choice in most other crops. Nothing perfect it seems.
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