Western Victoria ; SE Australia.
Mostly wheat, barley and etc during the N7's reign.
We always ran the cage sweep in our 1983 N7 but the prongs or what ever you call them were set up completely different to the standard cage sweep arrangement but how I no longer can remember so not much help but am sure we only used a couple of prongs, one short and one long I think.
The cage cover positions and numbers were also very important if you mess around with and without the sweep.
Incorrect cage cover positions made a difference to grain going out and / or cage buildup and blockages and again our cage cover arrangements were non standard.
Plus the peg retarders in the separation side reduced grain loss to near zero.
They took HP according to the then experts but we never could see this in real life.
No internet in those days to swap ideas and trouble solving solutions. We were entirely on our own.
That N7 went like a cut cat in dry cereals with very low losses and big capacity and an excellent sample.
It completely whopped anything around in the capacity stakes maybe because a savvy tech had been into the pump for a F/D demo and we were possibly pulling 350 Hp or a good deal more.
We regularly clocked around the 38 to 40 tonnes / hour running capacity in good 60 bus wheat and this in the mid 1980's.
But show it some green stuff and you cringed and nearly cried at the protests coming from the thresher.
Reliability was quite good as well but maybe because we knew our machine and did a thorough DI [ Daily Inspection ] before starting each day plus an idle down walk around at knock off looking and listening for anything unusual.
Good years those years and haven't seen those yields for some 15 years now due to this long bloody ongoing dry / drought here in the SE.
Might finally be through the big dry cycle this season at last with some good rains over the last few weeks.
The old N7 is still going well according to the guy who bought it off us and is still driving it.