L2 combine setting questions

A couple years ago I picked up a nice L2 Corn Plus. I've used it on beans and corn and it's been good so far but I just haven't had the clean bin sample like I had with the old E. No dockage yet but I would like a cleaner bin. On beans I run the air at 6-7 the top chaffer at 5/8" and the bottom sieve just enough to allow beans to flow through it when I throw a handful of beans in. It's got the chaffer with the front 6 or 8 inches that are adjustable separately from the rest of the chaffer. Cylinder speed I usually kept around 550 give or take depending and clearance anywhere from 1/4 to almost 1/2 inch depending on how dry the beans are. Should I be opening the chaffer up more or close it to float the empty pods out better? I'm maybe a couple months away yet from harvest but will be getting it ready in a week or 2. What do you guys running L's and M's set things at? Thanks.

Looks like I need to hunt down a good round tooth chaffer. I know mine has the 1-5/8 long tooth chaffer. I might call the old owner and see if he has the bean chaffer in his shed. Thanks Dr.

Would a long finger round tooth chaffer work? That's what the former owner might have in his shed. He's measuring right now.

We are lucky enough to have a "bean screen"under the top sieve in the L3. Guy at the elevator says nobody has a cleaner load of beans than the ones we bring in. I wish I had one more of those screens.

I like to run alot air. You will ride more crop out the back by closeing the top sieve than you can blow out. Open the top sieve to 3/4 and air almost wide open. Also your owners manual shows a picture of how to check the splitter behind the fan. Check all the adjustments on that page. If you don't lift the chaff at the front you can't blow it out.

also...check inside up front...there is a short tarp hanging down, make sure it's in good condtion, i had  dirty samples on 2 of my AC machines, and an old dealer friend told me about them. mine were worn and torn on one side. i replaced them and WALLA! must be some kind of air deflector or something! that did the trick!

Cousin's dealership has one, but it is 80 miles south of Chicago