The 1 5/8in sieves are mainly for corn and don't work quite as well for wheat. That being said, with only 100ac I don't think it won't be worth the time and expense to change them. You'll probably have to just live with a little extra trash in the sample, but with some fine tuning it should be acceptable. I can't give you any exact measurements on the sieves, we just mess with it until it's good.
Also, as far as I know the specialty rotor isn't the best for wheat, either. We rented a 1666 years ago that had the specialty and Dad never could get it to clean as good as the 1480 with a standard rotor. Someone can correct me if I'm wrong, but I think the specialty rotor is harder on the straw than a standard. We don't bale straw, so I've never cared about straw quality.
Your slotted grates will work for wheat, but your large wire concaves might be a problem. There are several topics about concaves, cover plates, etc. already, so I won't repeat everything.
The most useful advice I can give is to set the machine like the manual says, then stop often and tinker with things until you're happy with the sample. Good luck with it. Let us know if you have any more questions.
Also, as far as I know the specialty rotor isn't the best for wheat, either. We rented a 1666 years ago that had the specialty and Dad never could get it to clean as good as the 1480 with a standard rotor. Someone can correct me if I'm wrong, but I think the specialty rotor is harder on the straw than a standard. We don't bale straw, so I've never cared about straw quality.
Your slotted grates will work for wheat, but your large wire concaves might be a problem. There are several topics about concaves, cover plates, etc. already, so I won't repeat everything.
The most useful advice I can give is to set the machine like the manual says, then stop often and tinker with things until you're happy with the sample. Good luck with it. Let us know if you have any more questions.
