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Discussion Starter · #1 ·
I am new to Case IH so this is a strange beast for me. I started corn today it is about 28% moisture. I noticed my front rotor modules are all plugged up with silks and husks. I stop and clean them out and they plug right away again. The skip wire concaves are fine. What do I need to do to stop this?
 

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Do you have round bar modules in the front? Sounds like concave is too wide. Check & see if your concave is actually at 0 when cab says 0. When I checked my 7010 concave it was still an inch from rotor when concaves hit the stop bolts. Screw the stop 2 bolts that stop the concave from closing too far, in out of the way. With rotor in neutral, roll the rotor by hand while somebody in the cab closes the concave. When the rotor starts to tick the modules, move the stop bolts to modules plus 2 full turns. Finish up with concave cal in the 600.
The Case IH combine specialist told us most 10 20 series modules are run too wide. The tighter you keep the modules the more the cobs can rub the husks off.
 

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these concaves will do this just make sure you can stick your fingers through it. thenthey arent plugged. round bars may also be needed
 

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Even though we run New Holland TR's I find that running the concave a bit closer will clean them right up and I figure that will certainly work for all rotaries.
 

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We run 1 skipwire in the right front spot. The rest are round bars. We run this for corn and beans. They are right if the concaves get to wide they will plug up.
 

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put a round bar in the front left and then leave the reast the same majority of your seperation is done on the front and you want the corn to come out the left side of the machine scense the machine like to load heavy on the right side.
 

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Discussion Starter · #7 ·
I zeroed out the concave as was mentioned above and it was way off. I then reset the Pro 600 and now am running with the concave on 8 and 300rpm. It really helped the concave is now clean. Now my problem is the amount of cob in the sample it was bad before as well. I have tried precleaner on both notch 3 and 4 and bottm sieve on 10-12 but it doesn't seem to matter much. The corn is 28-30% and separates hard and loads the tailing pretty heavy. I have been running 4.5 -5 mph. Any Suggestions?
 

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First off I run an 8010 machine, so my setting may be a little different than yours.

My experience this year is that if you try to clean with your bottom sieve you are going to plug up your cleaning fan with grain( or is this not an issue with the 7010? ). With the high moisture of the corn, 30% plus-plus, the bottom sieve is just along for the ride this year, I run it at 21.

I clean with my top sieve running it at 18 or an acceptable level of cob in the sample after the grain has been thru the dryer.

Watch your grain loss funnels. If they start getting up there you are probably running grain over your top sieve.

Rotor at 320.

Concaves at 7.

I think round bar modules are a must this year. I run with 3 of them, I think Big A is running 5?

We're running in corn that has a test weight of 50 to 53 lbs. This is telling me the quality of the kernel is not there. There is going to be some unusual setting in combines this year just to get thru with the least amount of grain damage and the most amount in the bin.
 

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7120, What works for me and why.
Factory concave grates r more aggresive shellers than round bar but they plug in 30-40% cn. Rnd bars let crop thru but if you run 4 round bars in the concave area u have 2 b 2 aggresive w/ concave clearance and rotor spd. 2 shell cn. That makes a mess {cn comes out all busted up}.
In concave I run factory grates in #1 hole [L & R], Rnd bar in hole 2 [L & R]. In sep area I run rnd bar in Hole #3 [L & R], Factory grates in #4 [L & R]. Rotor has 4 straight bars over hole #3, spikes and kicker bars over hole # 4. Rotor about 350, concave about 28, vanes in medium, top sieve adj as needed, shoe is pretty open, 18-20. Fan is 1050-1100.
Front set in concave plug but doesn't matter cause they r shelling, 2nd set round bars let cn thru. Rnd bars in hole 3 let the rest thru. Factory grates in hole 4 finish off any remaining cn. They do not plug. I have no rotor loss and sieves r evenly loaded when I stall it. This is in N. Il. 32-40%, lots of leaves. 210 bpa wet, 160 dry.
 

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I'm running 3 round bar modules and 1 skip wire in the right front. After that we run skip wires. We also run 4 straight bars on the rotor. We also run spiked tooth rasp bars in the other 4 spots where the straight bars would go. The vanes over the front concaves are in the middle position. The vanes over the back grates are in the fast position. As I said we run this for corn and beans. Sorry I didn't clarify it.
 
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