Combines cracking soybeans

[Southpaw]

We have a stock R52 1995 model except for chaffer mod and feeder house shocks. We have a small seed business. If you are getting all the beans out the pods and seed size is particularly large, try opening her up a 1_16" on the rotor and slow the rotor speed some. If you go too slow we will get some rotor loss. Still get some cracks if the moisture gets below 12.5%. Haven't had that problem this year here but did have some trouble last year. Planning to do a full hyper mod. in the winter to improve on this further.

 

[jburke]

Have tou tried opening the seive IJ And it is possible that the beans are staying in the cylinder too long by being too wide on con. clearence or too slow cyl speed. Combine will preform better if the system is keept full.

 

[Silver_Shoes]

Have you adjusted your elevator chains, they can crack alot of beans if too loose.

 

[R_O_M]

In Oz, when harvesting large seeded crops, ie. chick peas, faba and broad beans and etc, a lot of Gleaner owners gas and grind about 1_2 in. off the outside circumference of the bubble auger. This often stops the cracking of seed which is usually blamed on the threshing processes else where in the combine. Check for cracked seed at the grain elevator bottom door. Cheers.

 

[Wildcat]

In early October when our beans were just mature, we could easily put a nearly perfect sample in the bin, even when moistures were 11%. 30+ days and multiple inches of rain later, cracked beans were common in the bin;same varieties, whether they were 15% or 11% moisture and no adjustment could stop it. Our local Elevator manager said it happened to everybody, regardless of machine color. We assumed it was just the seed coat getting soft from too much rain.

 

[hunter]

Have you tried openning the front of the concave to the max positionIJ You need to adjust from the back engine compartment. If you have a sep. concave it might be set to close. GOOD lUCK

 

[NDDan]

Ok I know you are talking soybeans but! In edible beans when dry. We must run 200 to 250 cylinder speed. Grumbling in rotor will cause cracking as well as to much speed. What is minimum speed you run rotor and why not slowerIJ If not rotor you could quickly just unbolt paddles from front accelerator roll and try a sample. If not rolls you should look at speed and or clearance of clean grain augers. You can raise bottom auger by moding bearing mounts. You can slow elevator in a couple ways depending how slow you want to take it. You could run a sample with engine idled back say 25% with cylinder back up to operating range to see if it is something to do with speed of augers or rolls. I bet you can improve it when you find the cause. let us know what you find. Take care

 

[green_jeans]

I have been fighting the same problem, beans were ready 3 weeks ago, rain every third day since. Never found an adjustment that helped much on my K. Nephew runs a R62, had the same problem custom cutting for a neighbor last week. He got his in very early with no problems. I opened clearance up to 1_2 and rpms down to 500 to get the best sample. I agree, must be weather related. Three varieties, all cracked.

 

[R_O_M]

I am a little surprised that cracking and breakage of the beans is being soley blamed on combines. Unfortunately, here in Oz, the problem occurs whenever we have heavy [ by our standards! ] summer rains on ripe pulse crops. The pulses, ie. peas, beans, chickpeas and etc are notorious for cracking and splitting if we get a 1_2" or 1" of rain and a couple of days of cool damp weather following the rain after they are ripe and ready for combining. The seeds of pulses absorb water very easily and quickly. The seed then swells inside of the coat and actually begins the early part of the growing process which entails chemical changes from starch to sugars inside of the seed. When it gets dry, the seed dries out and shrinks within its seed coat usually leaving a slightly loose seed coat. The chemical changes that have taken place within the seed itself are irreversible and will also have made the seed more brittle when dry. With a loose seed coat and a more brittle seed, quite severe splitting and cracking of the seed is then very likely when combining. It gets much worse when we have 2 or 3 cycles of wetting and drying. Cheers!

 

[R_O_M]

I am a little surprised that cracking and breakage of the beans is being soley blamed on combines. Unfortunately, here in Oz, the problem occurs whenever we have heavy [ by our standards! ] summer rains on ripe pulse crops. The pulses, ie. peas, beans, chickpeas and etc are notorious for cracking and splitting if we get a 1_2" or 1" of rain and a couple of days of cool damp weather following the rain after they are ripe and ready for combining. The seeds of pulses absorb water very easily and quickly. The seed then swells inside of the coat and actually begins the early part of the growing process which entails chemical changes from starch to sugars inside of the seed. When it gets dry, the seed dries out and shrinks within its seed coat usually leaving a slightly loose seed coat. The chemical changes that have taken place within the seed itself are irreversible and will also have made the seed more brittle when dry. With a loose seed coat and a more brittle seed, quite severe splitting and cracking of the seed is then very likely when combining. It gets much worse when we have 2 or 3 cycles of wetting and drying. Cheers!