Combines 4 rows of cylinder bars on a R62 or CDF

If you are having trouble cracking beans and adj. will not cure it I would have your dealer laser your gear box to make sure it is centered properly

check your concave level while there. The CDF_Bison Will have more capacity , but at a price. We really would suggest steep pitch helicals over the thresher while in there. The 4 bar setup will work on corn and soybeans. I would not think it would greatly affect crackage - impact speed does this. We also still like some type of retarding systen in the sep grate. OF course I have seen conditions that throw all logic out the window. You are making a major improvement in any case.

We went to the cdf in a 1994 r-72 and just love it. Best seed soybean samples received at plants. No cob in corn sample. No more adjusting shoe because of overloading problems. Why did it take gleaner this long to figure out this rotorIJ

I have recently purchased the bison rotor. But as tbran said that comes at a cost. I have run the four bar setup before and it worked fair.More rotor loss than I liked to see,especially in sorgum. Probably the most economical way and with good performance all around that I have found is Dans sweeps over the seperator side.

I agree, most economical way to get a performance upgrade is get rid of that 8 bar setup and go with the 4 bar. We used it for years and when we took half the bars off it made a big difference. Now we are running a CDF and also a Bison and both of them are very impressive. I think the Bison gets less cracked beans yet than CDF but its was only visual from the grain cart so not positive. Put the third helical in also, but make sure its welded in there good (nothing half azz). I have seen a couple cages where they came loose and it will destroy your cage so make sure its mounted properly. I am totally amazed going with these performance upgrades after coming from a long line of N-R Gleaners. These guys have taken a gotten large combine capacity out of the transverse rotor design. We continually harvest close to large red and green machines and I notice no difference in ground speeds. Seems some have a bad taste in their mouths about Gleaners, but with these upgrades and comparing ease of maintance issues I still have a very difficult time changine colors. The Gleaner is still just an economical machine to maintain and upgrade. Remember this is the same basic design concept they have used since 1978 and have at least doubled the capacity of them. Also from what I hear more upgrades are coming from Agco as well as the gleaner gurus here.

The four bar set-up has a pretty good reputation in corn and soybeans. I witnessed Gleaner running it at Farm Progress Show one year and I thought it performed quite well. We tried it once and felt it was great in soybeans but soon converted back to 8 bar set-up after getting into corn. We felt there was a little rotor loss. We have only one season on a CDF but so far we lOVE it. It was so awesome in corn we couldn't believe we were using the same combine. The big thing was that cobs were now in big to whole pieces and went out the discharge vs. over the shoe. Rotor loss was not a problem with our non-adjustable sep. grate. The CDF has solidified a love hate relation with Gleaner-on one hand you love them for coming with a CDF and on the other you hate them for taking soooo long. As for St. Johns, they are good guys. If you want to save some money I think you can ask them to build a rotor anyway YOU want it and they will. As far as I can tell grain crackage mostly comes from cylinder speed. You have to find some way to slow it down while still being able to thresh and sep. properly and not run out of power.

Your 62 was built the same year as our 52. We run a "hybrid" rotor - as shown on the Hyper Mods website. We have 8 rows over the concave and 4 rows in the separator section. As others have stated, 4 rows works well for corn and beans, but I was concerned with getting good thresh in small grains and tough straw - that's why we left 8 rows over the concave. I also think that by only having 4 rows in sep. area, this allows more area for the straw to be tripped up by the concave bar in the belly of separator and releases more trapped grain. Works sort of along the same lines as the hi-lo bar setup. Your machine was probably set up the same as ours - low wire concaves and 1_2" rasps on the bars. You may reduce grain damage by switching to the newer high wire concaves and 3_4" rasp bars. I think the old setup was too aggressive on the concave and the bars were not aggressive enough. The newer setup kind of reverses this - the concaves are less aggressive while rasp bars are more so. Also, the 3_4" rasps will allow kernels between the rasps without damaging them.

It sounds as if 4 bar set up is to aggressive for some posts on this site. What about 8 or 6 on the concave, 6 in the thresher area(taking out two that oppose each other)trying to minimize rotor loss. Would any of these ideas apply to the 52 set up being narrower set upIJ TIA

Yes, the concave is the original low wire and the bars are the narrow spaced also. I think the easiest solution might be a CDF with new wide spaced bars. I would like to replace the concave with the newer one also. There are some nicks in the concave it has at least 1500 separator hours on it. Is that too many hoursIJ The separator grate has at least that many hours and may need replaced too. The rest of the cage and helicals have been replaced. I would like to get into the newer style high wire separator grate also. Any experience with the CDFIJ

No experience with CDF. Our machine had roughly the same number of hrs when we replaced the concave with a high wire, but we are still on the original sep. concave. We also changed to the wide spaced bars and new helicals at that point. Cage is still original and looks to be in decent shape yet.