Combines M combine in corn

I used to have a 6-30 cornhead on an M and the only problem I had was keeping the grain from going over the shoe when I was on slopes. It was pretty sensitive about that. On level ground there was no problem. To help the situation some I installed an air foil chaffer and put a couple of fins on the chaffer to help keep the grain from all going to the low side. That probably increased the capacity 20%.

I have run a 6-30 on an M2 for several years with no problem. If the corn is in the 175+ range you may have to slow down some to keep from losing it over the chaffer. It will shell corn faster than it can clean it.

We currently run a 4-38 on our M2, we run comfortably about 3.3 mph in 150 bu corn. Next year we will run 6-30, an increase of plant population of about 14% with spacing we are planning on, I hope to run 2.5 mph. We open our bottom sieve to 3_4", otherwise our tailings return gets overloaded, then you are reshelling corn again. Also it is my understanding that there are long and short shoe M2 and M3 combines out there, ours unfortunatly is a short shoe corn soy special. Yield is what we have been disapointed about, I expect to be in the field longer if the crop is better, nice problem to have. Also, if you are 4 row wide and you have a big problem and need someone else to shell your corn, 6-30 is common and easier to get help. But to answer you question, M2 and M3 do pretty well with 6row, They even made 6-30s for F2 and F3, cleaning capacity is the biggest issue. Good luck

How do you like your Air Fiol ChafferIJ I was thinking of getting one but I didn't know of anyone who had one to compare vs. the factory finger. Also is yours adjustable or Rigid.

We run a M3 with both a 630 and a 436 head. This year I ran between 3.5 and 4.0 mph in corn ranging from 150bpa to 210bpa. No problem with 630 head.

I had a rigid air foil in an M-3,on level land it was perfection,in hillsides you couldn't hold the grain in.An adjustable should be much better.

With a 1977 M2 (short shoe) I ran a clean 750 bu_hr, at under 21% moisture, at 17% I pushed it to 14 pounds boost to hit 900-950 bu_hr. The M2 works well with 6 row heads. The 4 row wore out more quickly. Be sure to use best quality grease in the snapping roll bearings, like Moly grease. I've used chainsaw bar_chain oil, this year I added CD2 to oil for the chains. Best thing I did was install a turbo boost guage to the intake manifold, I ran 7-8 pounds boost. Get your engine load where you want it, then tune the combine to give the results you want. I also replaced the 11l-16 low profile steering tires with 10.00-20 tires. Have you got your seive in the lowest front positionIJ I ran slightly over 3_8" seive opening with the corn_soy seive. I ran an adjustable chaffer too. Worked well for keeping bits of cob form getting to the seive. Another issue is what's causing cob breakageIJ I used rasp bars with every other rasp ground down, leaving a 7_8" rasp spacing. That job was done by Siscoe's Metal Clinic.