Combines nice and bad things about the CR

NHD

Guest
I never had any trouble with the straw handling(chopper or Chaff spreader) even in long oat straw. I understand that NH is working on an update. There are several adjustments that help considerably. Speeding up the rotor helped too.There is a lot more adjusting and fine tuning that can be done on the CR's that a little common sense can do wonders.Don't know what else to warn you about I love the machine. It was hard to go back to my TR-99 for fall crops.
 

en

Guest
lot of updates for 2004 ,better seals for covers around rotors,revamped chopper for wider spread,chaff spreader moved back,there is a belt to shove straw from beater to chopper on the deluxe chopper option,engine shield to prevent fires,dual fronts has an opgrade,ladder has opgrade,and a few other things.
 

JHEnt

Guest
NH is evaluating a different fan design. Supposedly there is not enough air at the shoe for running 200-250 bushel corn at high ground speed. This was not a problem here in Southern Il but then again 150 bushel_acre is a bumber crop for us. It sounds like they might be thinking of changing from the 6 paddle fan to the fan type that CaseIH uses in the 8010.
 

land_Surfer

Guest
It's not so much the fan speed as it is the CR's relatively low profile cascading pre-cleaner. I would prefer to see NH increase the gap in the pre-cleaner vs. increasing the fan speed which will require additional power consumption. A greater cascading effect will allow for much greater material flow over the sieves resulting in more capacity, easier adjustment and a cleaner sample.
 

JHEnt

Guest
Its not the speed of the fan its the volume of air flow that they're evaluating. Squirlecage _ scroll type fans produce greater flow with the same input rpm thereby not increasing the velocity beyond usable limits. Air can be too fast and still not have enough volume there for the area of the shoe. Appearantly this never came up on the TX combines because at least in NA mostly all TX machines were sold in small grains areas, not major corn growing regions.
 

JHEnt

Guest
Another thing the overheating hydrostat problem that some machines had, this causes the computer to cut back on ground speed untill the oil cools down, was traced to a defective motor flush spool in the hydraulic motor. So like the defective hydrostat pumps back in 2002 we can thank the people at Sauer-Danfoss corp for that one.
 

JD

Guest
Just a comment as I know nothing about the CR and it's workings....but wouldn't a high yielding wheat crop pose require more capacity in the cleaning area than cornIJ And the TX was more of a small grains machine like you said.
 

JHEnt

Guest
I only know what the bulletin said. I assume that with corn being much heavier when running high yields at fast groundspeed that much more airflow is needed to get clean samples. I ran along with a CR940 in decent yielding corn for southern Il, about 110 bu_acre and it did not have a problem with cleaning. I have always thought of soybeans as one of the more difficult crops to get the shoe set for on rotor machines because any rotor will make much more smaller particles than a cylinder combine. All of these then end up on the cleaning shoe instead of riding out the strawwalkers like on a cyl machine. In soybeans there isn't anything that can touch this separator capabilities except maby a Claas 3D system.