No trailing bars on 22" rotors??

[hondaman]

Can anyone tell me why the 17" rotors come with trailing rub bars and the 22" rotors only have the leading bars? Is there much to be gained when adding trailing bars or will the awning plates do the job for wheat and flax harvesting.

Thanks

[kirschenman]

Never added trailing bars on our 970 or 9070 and they did a great job. I think awning plates are a better option to get a good thresh. Trailing bars won't keep unthreshed heads or bolls from falling through and onto the grain pan -awning plates will.

If you want to keep a clean sample in flax, make cover plates for the first two segments in the concave extensions as well. That is where I found lots of bolls would come out, even if awning plates were on the main concaves. Covering them up cleans it right up.

[kirschenman]

Oh, and your original question's answer is that the 22 inch rotor has 3 threshing sections rather than just 2 like on the 17s. So even though there aren't trailing bars, there is almost the same amount of threshing area. Not sure how much the trailing bars actually do. Other than suck power, that is.

[2rotors]

I think trailing bars have their place, in our conditions they help. We harvest in a lot of heat and awning plates in our area grind everything else up too much but I can see in flax it would be a good idea to block the extensions off like kirschenman said.

[hondaman]

Thanks guys. I suppose a person could put trailing bars on the first section only, if more threshing was needed. Andy did you use the cover plates on the extensions in durum wheat also or just for flax?

[kirschenman]

I used them in durum as well. Just in the 1st position though. Seems to keep the butts out of the sample and you don't run so much through the rethreshers then.