[chevyman2995]

running 4 rows rasp bars took wedge out wires are out still have rotor loss on hi moisture corn have no cob breakage to speak of any other ideas?

 

[pj]

Hard to make the call when we don't know the field conditions, age of machine (long shoe, 20% faster feed chains on newer machines), cylinder speed, f2 concave bars in the belly of the separater, wide spaced vs. narrow spaced cylinder bars (ie. more info is better than to little).
What is Hi moisture in your opinion. To some it may mean 20% to others over 30%.
Average corn all cobs about the same size. More loss when in poor spots in the field may simply mean drive faster to keep the processor full.
Older machine try running the feed chains on high speed if you see cobs bouncing over top of the corn head auger. Chains may also do a little pre threshing on high speed.
Never ran with four rows but makes me wonder if reverse bars would help Or 8 rows of bars at the concave. Hi moisture may require it.
Some Varieties of corn may allow you to open the concave up more and run the rotor faster 500-600 rpm as I am thinking that this may work considering you have only four rows of bars although with my eight rows in corn I perfer to run the rotor between 220 - 320 rpm.

 

[drallis]

Need every other wire pulled out of the sep grate and rear half of the concave to begin with. You may even need to remove every other wire from the front section of the concave too. If your cylinder bars are the "wide-space" teeth, you may need to run one or two reverse bars on the discharge end of the rotor. Ever since the wide space design cylinder bars on the short processor this is often times needed in wet corn, but if all the wires are in place, things are plugged with cob causing the rotor loss. I also like speeds of 220 to 320 as a rule.

 

[pj]

Drallis is that an older version of the concave that cobs can get stuck in that you are removing the rear half to begin with or the newer high wire wider spaced concave version. Just wondering. Thanks

 

[drallis]

Last season I had to do a 2002 or 2003 model R65 due to plugging of the sep grate and rear of concave, so that is surely a high wire version.

 

[drallis]

And all the older ones too!!!

 

[pj]

Guess I will have to check the concave in corn. Thanks.

Does removing those wires cause any grief in wheat or soys?

 

[drallis]

Don't know about wheat.....would guess leave front half of the concave stock with all the wires in for wheat. Just did an R50 last week ...wires pulled at all three locations and is having zero problems in soybeans (so far).