I've been running a 9250 combine for 5 years and have had problems shearing the bolt that runs the swing unloader from day 1 on. I have to play with shutting the drags off and on while unloading in order to not shear the bolt. I've checked the timing on the augers and its correct. I've replace the top elbow gearbox as it seized up this year already really hoping the problem is solved only to shear another bolt on the very next hoper. The bottom gear box(original) seems to turn easy with fresh oil every year it looks to be 100%. I combine beside 5 other 9250s and they hardly ever shear a bolt. I do combine a lot of lentils and I do realize the augers gum up with dirt but Y am I shearing and the others don't. I am a professional at putting in new shear bolts bolts!!! Frustrating. I even got the dealership out we went over everything and cant find nothing.
Steve9250
This is actually a common problem on the newer combines with the long augers - its just takes too much force to start an long auger clear full of wet corn, etc. Torque goes up as speed goes down, so that 1st initial rotation places immense force on the shear pins. Then if there is any slop worn in the pin hole as they keep breaking it just gets worse.
Lankota had a kit to install cross auger shutoffs . It was also an option from CIH for your model. Press the cross auger shutoff button & clean the swing auger out before shutting it off. You might talk to your CIH dealer and see if its an option that can be added. Or Lankota may still be selling their version.
IDK why you are having the issue and others around you are not - but you are certainly not the only one this happens to. My real wonder is why your dealer is not familiar with it, and others are NOT having the pin shear.......
Lankota had a kit to install cross auger shutoffs . It was also an option from CIH for your model. Press the cross auger shutoff button & clean the swing auger out before shutting it off. You might talk to your CIH dealer and see if its an option that can be added. Or Lankota may still be selling their version.
IDK why you are having the issue and others around you are not - but you are certainly not the only one this happens to. My real wonder is why your dealer is not familiar with it, and others are NOT having the pin shear.......
If it’s only in lentils why wouldn’t you lower your sweep auger covers
I’d rather take longer to unload than get in and out changing bolts
or put a 10.9 rated bolted in there
Is it currently 8.8??
or drill the dang thing out to 13mm or 15mm
What is it now?
you will break chain joiner link before you break anything else
I’d rather take longer to unload than get in and out changing bolts
or put a 10.9 rated bolted in there
Is it currently 8.8??
or drill the dang thing out to 13mm or 15mm
What is it now?
you will break chain joiner link before you break anything else
If you do not completely empty out that long auger …… you’re definitely going to have trouble. There’s a huge amount of grain in that auger & starting it full …… you’re asking for trouble.
Also, drop all the cover on the cross augers to the lowest position. Low position still is plenty high enough to gain very high capacity from the unloading system
There’s another. Never unload anything other than “full noise” on the engine …… you’ll block that auger up straight away.
Also, drop all the cover on the cross augers to the lowest position. Low position still is plenty high enough to gain very high capacity from the unloading system
There’s another. Never unload anything other than “full noise” on the engine …… you’ll block that auger up straight away.
Case IH has always had an unloading issue since the 1480 days. In rice you had to be very careful to make sure grain cart had enough room for the entire hopper load. You don't want to shut off early or you'd shear a bolt and be in for a long day. Lowering the doors helped with that but most folks around here put a 12volt A/C compressor clutch on the cross augers of their older red machines. Lankota offers a kit for shutting off cross augers while emptying the vertical and horizontal out. Works pretty good.
On the 9230 series anyway case gave the class 9 a slight unloading speed up by gearing up the tank cross Augers. However they kept the same unload auger sprocket which caused alot of grief. We got a machinist to put a new sprocket sped up the same percentage (I think 5 teeth bigger) and all problems went away
You could compare your sprockets to a 8250 in the parts book and see if anything is different
You could compare your sprockets to a 8250 in the parts book and see if anything is different
The independent unload system case uses has 2 versions for unload speeds 4 vs 4.5 bushel/second. All the 92 series machines come with the 4.5, all they did to get that extra capacity was put smaller sprockets on the cross augers to speed them up. The main auger stayed the same speed.
If you already tried lowering the covers over the cross augers and it’s still breaking you could get the different sized sprockets and slow down your cross augers.
If you already tried lowering the covers over the cross augers and it’s still breaking you could get the different sized sprockets and slow down your cross augers.
I just checked and it's the same situation. 2 drag auger sprocket options and they both use the same 25t unload auger drive sprocket. If you have the 51 tooth drag sprockets you need to fit a 30t on the main auger drive. If you have the 60t you have some other issue.
We just got one machined to fit but #84069795R is a pre made one from an aftermarket company "IHLE" that partnered with CNH and can be ordered thru your dealer
There was a PIP on the early 50 series that changed the single lug coupler on the folding auger to a dual lug coupler. Also there was a software update that made the engagement slightly softer. If this has not been done it would likely help your situation.
Engineering at it's finest. Claim fast unloading times but only trouble free if empty and wide open. With a cart by your side unloading on the go I will take a slower trouble free auger anyday. Everything on these big machines are running on the edge of it's limitations. The theory of overbuilding it for longevity has turned into "lets just spin it faster" or " lets increase the HP and charge $50,000 more" meanwhile it's the same machine as before that fails or throws grain out the ass end.
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