Grain_Reaper
Guest
Take some metric tools with you when you look at it and take some access panels off to get a good look at the inside of the machine. Take the access panel off at the very top of the feederhouse, just below the cab, this will give you a good front view into the cylinder and concave, then you can check the condition of the bars, concave and beater. Also check the cylinder heads (spider),the hubs that the cylinder shaft runs through and the bars bolt to it. 9600's are well known for cracking these, especially the ones that are keyed to the cylinder shaft. The other spiders are just "floaters", but they can crack too. Take a hammer and rap each one on the side to check for cracks. Also, on each side of the combine in the general area of the concave thier are two small access windows that let you see into the front and rear of the concave. When looking through the windows you should be able to see the cross section of the concave cross bars, if the leading edges of the concave cross bars are rounded it is time for a new concave. Another thing to check through the access windows is line up the highest part of a cylinder bar with one of the concave cross bars. If you do this the high spot of the cylinder bar should be at the same point of the concave cross bar on each side of the concave. What you are checking here is if the cylinder has a spiral to it (Bars do not run parallel to concave). 9600's are known to have this problem and if it is spiralled it is more than likely one of the cylinder spiders that is twisted not the cylinder shaft itself. Good luck and check it over well.