[w-mFarms]

why am I having rotor loss at 4mph at 30ft swath in ~70 bushel springwheat.
never had this before if I go back to 3.5 i have nothing have to admit its a hard threshing wheat and have my concave at 8mm and my cylinder at 920 and no kernel damage.
top sieve 12 bottom at 6 wind at 1210.
advice welcome, I hate to slow down

 

[Northern Farmer]

I have the answer, find a nice capable young lady to run your combine for you and tell her to drive at 3.5 mph and your problem will be solved, its just that easy

 

[w-mFarms]

ya but my girlfriend wasn't driving this time will probably drive it next time.
but this defeats the purpose of running lexion
oh btw had rotor at high speed.

 

[SouthernSK]

Do you have your rotor running wide open and all the rotor grates open with no filler plates?

 

[victory]

How dry is the straw? Could try speeding up the cylinder some more so more wheat will go through the concave.

 

[w-mFarms]

straw is pretty tough.
rotors are wide open, no filler plates

 

[victory]

Run the cylinder faster. Only other thing is ground speed as mentioned already. The lexion is why you are still doing a good job under those conditions.

 

[SouthernSK]

Do you have your aps grates open? If not I would open it up, put the smooth small grain slotted smooth aps grates in, and put the intensive threshing segments in. This will remove some of the pre threshed grain before the cylinder. I prefer to run the cylinder slower and the concave tighter so you do not chew up the straw and make it hard for the rotor to separate the grain from all the chewed up material.

 

[w-mFarms]

ya true all combines were parked, I already thought about slowing rotor down and slow cylinder down. I had zero loss on the sieves which is odd, usually combining sieve loss is limiting factor.

 

[Don Boles]

Are you ground truthing this and not just going by loss monitors?
Although, I find Claas monitors very reliable and consistent.

 

[2rotors]

Sounds normal to me. I understand the difficulty threshing some of our spring wheat varieties down here. I'd say all is normal.

 

[SouthernSK]

With our 590r rotor loss is always the limitation except in canola. To keep rotor loss down in wheat we find it best to remove as much grain as possible before the rotor and chew up the straw as little as possible before the rotor.

 

[w-mFarms]

Ya its checked by the ground but my monitor i usually set by what I see. The straw was like manure and it came out the back pretty mangled up, but the sieves were clean I was surprised with my concave clearance and high cylinder speed that i wasn't cracking grain.
but in all fairness neighbor with a 9870 was parked already because it got too tough (he ment to say his deere couldn't thresh it to save his life )

 

[wayne]

I was going to put an old flat cylinder bar in the belly of each rotor like we did on the Gleaners to disrupt the wad of material as it spins around. You try it and tell me if it works!

 

[Don Boles]

W-M does your 485 have variable speed rotors or three speed?
Sounds like straw was pretty tough, not sure any setting or machine could sort the wheat out.

 

[seedcleaner]

Sounds tough if you have rotor loss and nothing bit grain going to the sieves. Cutting higher could help.

Windrow the straw and see just how damp it is.