Combines r72

[Ed_Boysun]

I would sure like to see some pics of your Dad's masterpiece. If you have some pics, and E-mail them, I'd post them on my site so others could see them too. Ed in Montana

 

[NDDan]

WOW! Have you dynoed these machines to verify HPIJ I was a bit shaky when dyno testing a 330HP machine. Have you been running that high HP on other machines very longIJ Anything special you do to feeders, cylinder gearbox and drive to it, or anything else to handle that powerIJ Have you did anything with helicals, grates, or cylinder to reduce amounts of HP required and or lossesIJ We used to be so terrible hungry for more power until we found there were ways to require less power (often times much much less power). Sorry about all the questions but very curious how you stand on some of this stuff. Thanks

 

[r72]

In Reply to: Re: r72 posted by NDDan on February 22, 2004 at 09:25:55: yes all three machines were dynoed. the two M11 were hitting 432, the C12 was hitting just around the 425.. My first r72 i ran i had the deutz sitting at 370_75. My 2nd one was the l10 that one i did not have it long so i never touched that one. My first M11 i had i turned it up to the 395_400, then these two i stopped at 430.Nothing alse has been modified to with stand the hp increass. We have changed to a sunny broke rotor and concave. We have also done all the hyper mods as per this board. We found that this has saved a lot of hp. Our bigest prob now is getting all that materal up the feeder house. It is like going back to the early N7 and r's feeds good untill you up the power....cont'd

 

[R72]

When we start running the 42 foot heads we have alot of material going in. But with the mods done to the rotor we find it going threw fairly fast, the sample is like coming off of a seed plant. We have next to zero losses, which is what we were trying to get. The extra hp is nice, but we don't push it to the max. If you were on the top of the hp curve the combine would self distruct(any color would)becuse it would not beable to handle that high hp all the time. We now were the sweet spot is on these machines so that is were we stay. We do now when we have new operators running them instead of dad my cousin and my self.My next machines will probably be only turned up to about 400 we find that going higher then 400 you can't cool them with the standard rads, all three machines have coutom built rads in them to keep them cool sorry i have no pics, but i hope to have some soon.

 

[R_O_M]

like NDDan, WOW!! I am impressed ! Again, the Gleaner guys on this site with their "Have a go" attitude, show what extra performance they can get from their combines. Over to you AGCO!

 

[Kurt]

WOW is right. Thanks for sharing your story with us. What kind of heads are you running that are 42'IJ Is that a honeybeeIJ How much of the head is on the left side of the combine, and have you extended the unloading augerIJ If this next question is to personal you can just ignor it but I was wondering how many thousands of acres are you trying to cover with these 3 machines, or are just making sure that when its time to cut you can get the job done quicklty. Thanks again!_ Kurt

 

[R72]

That is right my heads are 42ft honeybees. I use a stx440 quadtrac with a deaglemen grain cart to unload on the go. We harvest 4200 acres are selfes and i go south and do the wheat run from texzs to canada. Yes i want my machines to go to the feild they have to perform. I am not one for taking my time, i have to get the grain off now. becauce when that is done i jump into a forage harvester to take off corn for your feedlot, plus i do custom chopping. So there you have it, any other question i will try to answer.

 

[NDDan]

Thanks for that and offering to answer a few more questions. HP is normally checked at clutch shaft so I was wondering if your figures are clutch shaft HP or bare engineIJ Maybe they checked at cluth shaft and made best calculation what bare engine would be. Would you ever have the torque at certain RPMs that you would shareIJ Will your Cummins man crank up fuel with laptop or how do you go about thatIJ Did you put in Sunnybrook gen two in only one machine and if so did you put on straight discharge paddlesIJ Do you run all forward bars and or use stationary rasp bar to control possible lossesIJ Do you run low-narrow, hi-wide, or some other style seperator grateIJ Thanks for your time. Now if you want some help with feeding I'm quite positive I can help if you want. Enough for now.

 

[R72]

First off i am a certified heavy diesel mechnic. I got all my traning in a gleaner dealer ship. All Three engines were dynoed both ways at the fly wheel and at the clutch shaft. The torque on the M11 is right around the 1650-1750 at 1950 rpm. The C12 is in the 1350-1650 at 1900 rpm.The M11 I used my laptop to do the software change, plus i had to change to one size bigger injector to get the propper fuel ratio. All three have the sunny brook rotors and concaves(gen2) I run all forward bars, the paddel are half forward bar half paddel(like the lowen setup)In the belly of the beast I am running the f2 bars and rolfs peg bars in the back. I am running a little different grate config right after the concave for the first 8-10 inches i have all wires in, after that i pull every scend one, The grates are high wide. What can you do to improve feeding. Kevin Flagal from agco was saying i could be at the limit of my feeding due to the high hp.

 

[NDDan]

Thank you and I hope you don't think I'm questioning your expertice. It's just many people don't have dyno set properly and or interput results wrong. You must be talking metric measurement of torque. I'm used to foot pounds times RPM divided by 5252 equals HP. Sounds good on the Sunnybrook rotor. I was curious if you left their little kickers in place and the rolled back discharge paddles for that could of been holding you back in the long tough straw conditions (well maybe not with your HP). Thanks for that for now I have fairly good idea how you are set up. I'm sure you have extended third helical over feeder corner but have you ever played with steep pitch helicalsIJ Number one to improve feeder you can fill in areas between front feeder rails to prevent straw from puckering up threw chain and building in front of square tube. Number two is remove hex head bolts on side of feeder and replace with pan head and also the hex head bolts right next to drive sprockets. Number three is to weld in filler to slant the square corner on both sides of front feeder toward the back. Number four is to run rear chain some tighter than specs. Number five is rock door hump kit. Number six is helical filler over top left corner of feeder especially if you have normal pitch helicals. OK I don't know what the most important is but other than loose belt ect. these things will help a bunch. Another thing some guys have did is to purchase lTM pulley to speed up feeders even faster but I prefer the latest. The latest is to lower rear of front feed floor to make more room for material as well as improve angle of feed into rear feed. last year was the first year for that and results were outstanding. I had done that to three machines and all had operated R62 or 72s for years. All reported no trouble at all feeding as compared to ussual. I also had a custumer do his own lowering. He lowered the rear of front and front of back approx one inch and loved the results. I have lowered many more fronts and in process of doing a front and rear. It is tricky doing this and still having everything seal up right so be aware. let me know if you ever dig into one and I'll try help you out. I have met Kevin and like him but don't take his word for feeder being maxed out the way it is. I have heard other company men say it is maxed out and that is maybe why I'm getting more verbal about this all the time. Also I almost forgot to mention Rolfs friend Steve in Australia is making a posi-feed roller to tention these chains and they may help a bunch!!!!! Rolf and his old man ran one or two this year. Thanks again