Combines 1682 vs 1680

What happens when you try to go his speedIJ Is it the tank sample or the loss out the backIJ If your machine is feeding ok, the beater should'nt be the problem. If you are both cutting the same height and same width, you should be able to set your machine to match his speed.

Tank sample looks good with no loss. Just seems to be all it will take. Get a lot of rotor groaning.

How about the wear on you threshing and rotor partsIJ Elephant ears sharpIJ Concaves and rotor barsIJ Transport vane condition and positionIJ Pinch point on concavesIJ All this stuff and other adjustments can affect your performance. Have you tried just closing the concaves a littleIJ

When you say, rotor groaning, is it slugging the rotor or just a steady growlIJ look at the rotor tach when running and note how for down the rotor pulls from empty speed. If it is pulling down a steady speed,like say about 60 rpm,+or- a few, your rig's probably in pretty good shape. Just need a few adjustments. If it pulls down erraticly, and the motor stays steady, your rotor drive system could need service. If it is slugging and the straw behind you looks less even tha the 1682, then you may have a wear problem in the feeding-transition system. If the 1682 can go 3-3.5mph, then I assume your conditions are good for harvesting. So the straw should be dry enough not to give you feeding problems with the rock trap. What speed are you running the rotorsIJ Even though they are the same basic machines, every machine has its own personality. Yours may just need to have a few different settings.

Is the feeder house chain tight and forward for max input without bunching. Would suggest double checking upper and lower stops to make sure they are in place and set to conditions.

I would suspect the difference is in Horsepower. 200 Horsepower at the pto equates to somewhere around 250 engine horsepower. I am not sure of the 1680's hp but I don't think it is 250. If hp is the limiting factor and he has 20 more available than you have it will make a tremendous difference in capacity.

Sounds like a H.P. isue if every thing else is the same turn that 1680 up a couple of turns on the pump and make a knew machine out of it. Tracter is putting more power to pto than combine.

Thanks for all the info. I'm new to this machine, maybe I'm just not working it hard enough. How do you tell when your loading to capacity. One thing I noticed is that the straw behind the combine is heavier on the right side. Almost looks like another swath.

Well, there will be many opinions on the capacity issue. All have valid info. It depends on you and your operating requirements. I tend to prefer running my machine at a certain rotor rpm drop. That way I have a consistent load on the machine at all times. I dont have, nor do I trust grain loss monitors, so This way when I have the machine set for that rpm drop, I can be reasonably sure my loss is consistent also. If I'm not too pushed by weather, I usually run about 60 rpm drop from empy speed. Then I set the machine accordingly and just run on the rotor tach. It makes the machine very forgiving to run. You can set your machine for pretty much any drop you want, just, the harder you push it, the more attention you have to pay. I dont know why the straw would be heavy on the right. Are you running a chopper, or straight to the spinnersIJ When you look at the straw, is it spread out smoothe or does it appear to be bunched upIJ Something else to check is the very back edge of the rotor, there should be four of what are called kicker bars on it.

I have an internal chopper. The straw is spread out smooth, just like a windrow. Are the kicker bars the straight bars that are over the grate section of the rotorIJ