6620 John Deere

[Robert E, Smith]

Getting a bunch of trash in the Grain Tank with the Beans? Got any Ideas what is going on?
Don't see anything jumping out at me that may be wrong?

 

[Mike Aylward]

Robert, before we can help you can you tell us how you have the combine set now? What does your return look like? Mike

 

[Bradley K]

How long have you been running this machine?

Use plenty of air, fan should probably be almost wide open.

Most likely you are not threshing agressively enough. Close concave and increase cylinder speed. You more than likely need to be more agressive than what the book says, if real tough don't be afraid to go up to 750 rpm's or so.

If you start splitting to many beans you will need to back off, also during day or as beans get drier. Different varieties are harder to thresh also.

From there make sure the chaffer (top sieve is set right). Then close bottom sieve until you start getting a lot of soybeans in the tailings elevator, open up just a little from there.

A good way to do that is to throw a few handfuls of beans on the sieves as you are adjusting them to get a good starting point.

If you continue to have problems you have some major wear issues such as worn bars, concave; but these would have to be real bad in order for it to be an issue.

You also need to check and make sure you aren't missing any sieve sections, that would allow pods to go directly into the clean grain elevator.

Good luck, Brad

 

[Anonymous-0]

if it is unthreshed pods you may need to close concave/increase cyl. speed or close clean grain sieve to send the pods over into the returns, if it is just trash you need more wind or are overthreshing and overloading the shoe with trash and need to slow down cyl. and open concave