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SW Saskatchewan | As with all things, perfection is probably better but 30 years experience with rotary has taught me that the concave is probably the critical item in small grain threshing. After installing a calibration bar to check rotor bar clearance, I never did find it to be a major problem.
We always used to have threshing problems with Neepawa wheat- as they said at the IH factory while we were on a tour- " In Canada they grow one of them there wheats that you have to lay on an anvil and knock the kernels out with a cold chisel". close enough!
All our problems ended when we went to a low wire concave and had more resistance to crop movement than offered by the IH stock concave. When we moved up to 2188's from 1480's, they came with interupter bars which I did not like as well as the concaves with higher bars(lower wires).
JMHO. | |
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1480 rub bars
