Gleaner F in corn

Running bars in the 1,3,5 positions. Closed it up till I had whole clean cobs. Corn is 22-24%. Ran cylinder speed from 550+/- to 400. I have trimpe bars. The corn is still grinding? Are the cylinder bars the problem or should I change sprockets? Running a 44 tooth now but have a 52 tooth. Is my cylinder speed to fast?
 
What type of bars/channels do you have in the bottom door??? In corn that grinds easy many of the guys around here took out the "C" shaped bars and put in the half rounds like you use in soybeans.

Also if your Trimpe bars are real new they can grind soft corn. I never really liked the Trimpe bar. Liked the Lowen bar better.
 
Had the same set up as you, asked my local dealer and he told me to increase the cylinder speed, thought that was not logical but I tried it, went up to 600+ and the fines were reduced. Hard to grasp but it worked that year for me. I had the trimpe bars, set the concave at 3/4 and had the 3 c- channel bars in.
 
Along with channel and half-round bars, there are angle bars available.....only one contact surface, not two, like the channel bars. I"ve never used the half rounds. What concave clearances have you tried?
 
I'm running the c channel bars. I guess I'll try running the cylinder faster . Does running it faster throw the corn out of the threshing area faster? What is the logic behind it?
 
If you"re running 3 channel bars, you"re running 6 threshing surfaces, making too much contact for your conditions....making fines. Try one channel on the door (to maintain rock protection) and run two angle bars. Instead of buying dealer bars, get channel and angle from a steel shop and drill mounting holes.

Gleaner uses a slightly off-standard profile for their bars, but common steel works fine and is much cheaper. Thus the need to change all at once. Years ago, dealer price was about $15 per bar, common steel was under a buck/pound.
 
difficult to make sense to me but your thought of clearing the cylinder out quicker may make sense. give it a try, it did work in my case.
 
Ya know, I've done Internet searches for F and M Rasps, Trimpe, Loewen (sp), and so forth.

Kinda looks like everyone has gone to the rotary combine bars, and no longer carries the conventional combine bars?

Worthington has their brand - I'd not heard of - listed, but says call for availability.

I know I can go to the dealer and he will have some type of bar available; but the brands listed don't seem to come up any more?

Paul
 

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