Combines M 3 throwing over corn over 2mph

lots of reasons. n1 is the belt slipping that turns the fan, replace it and make sure spring is in the front hole..IJ This slows down everything and decreases capacity. n2 Eng RPM low IJ n3 clutches slippingIJ and on and on...

Are your chaffer, sieves, and air set the same as your neighborsIJ If everything is running up to speed as tbran suggests try running faster once through the field. If you are looking at the grain loss monitor, it will show shoe loss at first then when the machine gets loaded up it should back off. It seems like the first kernals in the machine will bounce on through until the sieves get some grain on them. Also compare settings on the grain loss monitor. You may be set too sensitive, making it look like you should slow down when you should be putting more onto the sieves.

How fast are you running your cylinderIJ Are you grinding your cobs overloading the chafferIJ Are you running your machine fullIJ If you are running whole to half cob increase you ground speed so you have grain hitting grain on the grain pan and chaffer, the grain will bounce less if it hits grain rather than metal. Also hyperize your chaffer running the first six rows with a separate control rod and then open those row a little more so more grain gets down inside the machine sooner, the blast of air from the fan at the end of the grain pan will blow the lighter cob and chaff to the top and keep it moving out the back. I did this to my F2 along with increasing my ground speed to keep my machine full and could not believe the difference. Hope this helps. Keep us posted. Pete Hinrichsen

Hello. Did you run corn previous to two years agoIJ Having a M-3 I assume that you have a conventional machine with rasp bar cylinder and concave. I am familiar with F and F2 combines. Do not go faster, it will only throw more out the back! (somewhat the opposite of a rotor, I found out!) let's start from the beggining. The thing to do is first check your feeder beater,make sure all of the spikes are in and timed right. Next check your cylinder and concave! This is probably the most important things. Make sure the rasps are not worn. If they are reverse or replace. Check the concaves as they can make an extreme difference as well! Then make sure the beater is in good shape and yes you should have a curtain inside to deflect the material down onto the raddle chain (mainly in wheat and corn). Also check how your neighbor adjusted his straw walkers, they should be close tom the rear beater so you don't overload the sieve and chaffer. Try this and it should make a night and day difference if one or more of these things are corrected! Good luck!

Check with terry at Saint John's Welding. A couple years ago we had the same problem with our M-3. He explained everthing which was happening and told us how to check it out. sjwelding@stjohnks.net

I had an M2 throwing corn bad and tbran is close. The fan on the M2 I was working on was filled with chaff and dirt. I cleaned it out and checked the airways to the shoe for any other materials and moved the spring on the fan belt tightener to the front hole to make it tighter. Solved his problem and he was able to run 4 1_2 mph in 200 bushel corn. It sounds like a dumb thing but if we have any complaints of grain going over the shoe, we look at the fan first.

yeah, on my post I meant to go back and post "check out the fan choke, and blades.Make sure the choke sill open allthe way to the upper stop screws. Have you had the rod off that operates the chokeIJ It can be put on upside down and make the choke work reversed" but I pushed the 'post' box instead.