I have 2 rotor covers after the 4 covered by the rotor doors. So all closed 60% covered (ie 570r) and the back 40% always open.
I have only done large greens lentils with them so far. We ran with the rotor doors open and had very little rotor losses. One tough morning we closed all the rotor doors and the losses increased a far bit. But as soon as we opened the rotor doors the losses dropped right off. For what it's worth
I would think there would be little material of any kind over the rotors with lentils, correct?
I don't know how much separation the rotors do in peas.
I think header losses are sometimes more significant than combine losses.
In peas what cylinder speed are you running?
If running below 400 one needs to change the cylinder drive bolts position anyway and with rotor covers in you may run as high as 700 rpm in canola, or whatever is just below grain damage level.
I have enough manual covers for 50% and with the 40% from the hydraulic doors so can be 10% loss monitor section only open.
That would be a chalk dry canola only setting.
I see I have the new rotor exit paddle/tin guide setup designed for flax I believe but I think the rest of the rotor is the same as previously, anyone know?