Combines STS grain tank problems

[myr]

My dealer told me that there was a 9560sts that had a tank failure in NE Iowa. I don't know the details. We just purchased one and want an extention for it but even the extention manufacturers require the dealer to sign off that there is no warranty or responsibility for the installation of the extention. I too am wondering how and where these failures happened. I would possibly consider putting a take off 300 bushel extention from a 9760 on my 9560 if anyone has one they are not using.

 

[SD_455]

If there were any problems they must have fixed them because JD is offering bin extensions from the factory that will allow 300bu capacity on the 9660STS.

 

[Steve]

Keep in mind the 9660, 9760 and 9860 are structurally the same machine. 9560 has 11" narrower feeder, smaller diameter rotor and smaller shoe. Also believe grain bin failure was exclusive to 9560. Would be hesitant to add extension unless definite that superstructure of combine was as heavy as the larger machines.

 

[land_Surfer]

Not only are they structurally the same machine, they also share the same size threshing, separating, cleaning, grain handling and drive train systems. Engines are the only difference.

 

[8520]

9560 are NOT the same machine and i have heard if u mount those big extensions on you will have failures, and john deere is not going to cover this

 

[Farmerman]

I'm not sure what you are referring to by drive train, because the main drive belt and clutch pack along with some other parts are heavier to handle the larger engines. They are basically the same machines for the rest, as you said.

 

[riceman]

9650_9750_9660_9760_9860 is all basiclly the same machine with the 9860 having that huge boat anchor on top. The only basic difference between the 9750 and 9650 is oilcooler on reverser,bin extension,and lift cylinders on the throat. Everybody will argue with me on that but its true. The 9560 IS smaller. different stuff on the inside.

 

[Wind]

Would be careful on that 300 bu on a 9560! There are major differences in the understructure. As some have said the body is approximately 11" narower, that means also the mounting legs for the tank are narrower to fit the body, I think. That means hanging the extra weight out further from the body, that could spell trouble. 250 bu. maybe, but would not feel real comfortable with that. Keep an eye on things if you do that. Did not realize that the aftermarket guys were requiring a waiver signature either. Probably smart on their part. Get caught with the extensions on, and Deere will probably not back you up either. Would be curious to hear if you find out anymore on the 9560 that collapsed the tank.

 

[myr]

I looked at JDparts and see that the larger combines have a support or added material on the augor side. It looks like the 9560 has little to no support in this area. My guess is that the 9560 had a 375 bu. hopper topper since that is the smallest that is made. These hang past the sides on the larger combine and would be that much farther out on a 9560. I would bet that someone was on a sidehill and the grain slid to the lower side and crinkled it. We run a 9550 sidehill with the 70 bushel extention to hold 270. We don't want to hold less than that since we run an 894 cornhead and don't get very far in 200 bu. corn. We are getting a 9560STS with a Hillco. Hillco said there is no weight problem with their parts but JD will void warrantys if they see a hopper extention. I have been told they will be strict on it with the new models. It seems they keep cheapening things up until they will fall apart if they are anything but factory.

 

[HRGD]

The differences you have stated between a 9650 and a 9750 STS are right on, trouble is you missed some. The 9750 has a high output fuel injection pump with larger nozzles, High capacity Turbo, higher capacity ECU, a 4 disk separator drive clutch as compared to the 3 disk clutch in a 9650, Heavy duty Primary countershaft with heavier U-Joint yolks, heavier variable speed drive belt and sheaves, heavier and larger gears and bearings and an internal oil pump in the reverser gearbox.