tbran
Guest
Pods, unthreshed, are the result of either too high a cyl clearance, unlevel grate, or the need of concave filler stips to ensure complete threshing of those pods. You will have to address this as any cylinder will have this problem. Of course drought or stressed crops exhibit this condition and there is really no economical cure for this. Sticks: There is one way outside of adjustment to have nearly "seed bean" samples . Procure a perforated screen, there are two sizes available, in lieu of the adjustable sieve. Takes 15 minutes or less to install. Screens are also available for wheat, milo and other small seeds. Think about the process grain goes through to enter the bin, it is threshed, then goes through an air, pneumatic, cleaning, then a process of falling through the top screen or chaffer. As the material exits the cage, the accellerator rollers 'throw' the crop at 4 times faster than free fall, through a high velocity air blast 15 degrees to the front or into the air blast. The sticks must be dense enough or weigh enough, to be accellerated through the blast and land on the shoe front. Then they are 'shaken' to the chaffer. Anything the same size and weight of the bean, or smaller and weighs the same, will fall through. IF it cannot fall through the seive it goes to the tailings for a recycle. Anything that falls through the seive goes to the bin. IF there is not enough air, lighter material other than grain (MOG) will drop through the slots as well as grain. Not enough air can be caused by several things. low engine RPM, clogged or damaged fan blades, chaff built up on top of air choke not allowing it to be opened more, a splitter (the air divider behind the fan that one can see the tip of through the lineup_check inspection holes) that is off, OR a seive that is closed to tight in higher yielding crops. One can open the top chaffer and close the sieve so much that the seive which is now overloaded, will not let the air pass through. We have cleaned up many a sample by lowering the chaffer as low as possible and opening up the seive over what we find upon initial inspection. The overloading of the seive will coat it over and allow lighter weight sticks to pass through as well. Finally there are some varieties and conditions that simply require the first solution mentioned. I have yet to have a customer say the screen has not fixed his problem. We and others here have customers in the past even make slotted screens for corn. This was mentioned many years past in the archives. As to the cylinders, the one you have can do a great job, but if you are looking for more capacity there are many good ones out there. Do the homework and choose one for your application. Hope this helps.