Joined
·
122 Posts
Any one know the max-capacity on clean grain elivator on a R-75? I am running R-75 with 12 row 30 and the most I can get through it is about 3600 bph.
Clean grain capacity
1 - 16 of 16 Posts
I think that is near MAX right know and here's what I have heard. Bottom adjust elevator will gain you some more if you don't have a '05 or newer. Next bottle neck is size of auger in tank. I guess it won't keep it away fast enough so corn comes back down elevator. Might want to increase diameter by a couple inches. I think someone once mentioned speeding elevator up with a pulley used for tailing return. Don't know if it speeded it up by 10 or 20% but wouldn't be to hard to do. I'd have to try that sometime if I were in the good corn country.
You may be well right. First guy I heard that over ran the clean grain used the tailings pulley to speed up whole system. Second guy that over ran the clean grain did some checking with Gleaner and after some checking they reported the bubble up was first restricting. Before I did anything I would look in book to check both the bottom clean grain auger speed, size, and pitch of flighting. I would then check bubble up auger the same. If they checked out similiarly I would lean toward speeding the whole thing up or look why material could not enter and get away from bubble up auger fast enough. If it was evident why bubble up could not take away fast enough because of its size, speed, or pitch I think I would just speed it up. I'll have to see if I can learn more about this this winter.
Joined
·
122 Posts
The R-75 is a 06 model with the bottom adjust. I have had the bottom door blow open a couple of times. I thought it was because of the cheap plastic handle holding it shut but maybe the grain coming down the back of the elevator wedged it open (that happen to anyone else?). Either way its still a poor design compared to the older ones that were harder to shut but never came open. The old ones had that little metal lip that you had to slide up the inside before you shut it. I just have some wire wrapped around it right now but before next harvest maybe I'll try recreate the older door. Anyway I'm glad i asked. I was going to try change the bottom auger flighting to speed it up but it probably would have just caused more problems.
I looked at a new combine today ,a R65 The tube that goes from the shoe to the clean grain is now oval shaped instead of round. Is that where the bottle neck occurs,and is that why they changed it to an oval shape to give the clean grain more capacity??????? And by the way that dark gray on the new combine looks really BAD in my opinion.
IG
IG
Joined
·
122 Posts
I heard a rumor that somebody had put a larger bubble up auger in the grain tank on a R 65-75 for the 07 season. Just wondering if anyone else heard about it or how it worked
Joined
·
26 Posts
As far as the header configuration, the reason you don't see a red massey head on a gleaner is because the gleaner head is offset from center where the massey is centerline. The body color seems to be the same as the massey and challenger combine, this has to make the manufacturing costs less. I really think the gray matches better with the paint scheme anyway.
Joined
·
198 Posts
My understanding is the bubble up auger is the bottle neck and the 6 series are going to have 10 inch augers haven't seen them though. I would look at a new r75 and make the door latch like it has. It locks it with a hairpin.
71366755 will speed up the elevator about 10%. The idler will have to be relocated or a smaller idler installed. Worked well on R72 with 12row in 225 bu/a corn. As to the bottom door, the latch has been changed to prevent pop opens. New combines will have the larger auger to take grain away, IF capacity is still a problem this system will still work - or it has on several occasions..
Can run 3200 bu/hr on occasion but been doing HMC (25-32%) and can only really hold about 2800-2850 for an average without plugging clean grain in 08 R75. Had the same problem with 05 R75. Running 12 row head. Can only go 2.3-2.5 in high yielding corn (342 bu acre avg WET on yield monitor calibrated to less than 5% error). Running CDF rotor. Make sure to check sieve. Changed variety and didn't have dad change clearance and put a bunch of broken cob in sieve and had a problems then. Cleaned cob out and were able to speed things back up a little. I would love to be moving 3600 bu an hour! Good luck!
1 - 16 of 16 Posts
