Combines Older R series sieves mods

Rolf, I wouldn't mess with the length of the rear shoe hangers. That will throw your travel and lift off. We usually take a 1" block of steel or square tubing and raise rear of shoe by placing under rear hanger mount. This should also allow rear bottom shoe seal to still do its job of sealing by tailings auger. We have noticed that some of the tire configurations end up leaving the rear of the shoe tail down which would tend to walk grain out over the shoe. Sometimes adding the 1" block is all that it takes and sometimes a tire change is the only way to raise the back of the shoe. Good luck, Hyper Harvest II

Arr Cool thanks Hyper! We still have the new tires that came with the header in the shed! they are much bigger in Diameter than what were got on now! (skid steer tires) And I thought shorting the hangers would cause some problems somewhere, but your inch blocks might do the trick! You never, never know, until you ask! Rolf

Why did you switch your rear tires to skid steer tiresIJ Kurt

I got sick of sliding forward out the seat due to the steep forward slope that those oversize rear tyres gave the machine. It was an AGCO quick fix for their R series sieve problems most of which is probably due to the way in which the accelerator roll wind duct is now configured. The old N7 with the same sieve size and setup had a dead flat sheet area from the upper wind duct right to and across the accelerator roll openings and did a superb job both in capacity and retaining grain compared to the R62 short sieves. The R series for some unknown do better designer reasons has an area before the the accelerator roll opening that is folded and convoluted and seemingly just made to create turbulence and very poor consistency in the airflow through the material that is being accelerated down to the sieves by the rolls. Most of the chaff and etc should be removed by this accelerator roll airstream and was in the N series before getting to the sieves but we suspect because of turbulence in the airflow across the roll opening created by this poorly designed area in front of the accelerator roll opening that a lot of this material is actually getting down to the sieves and tending to overload the sieves. More air was the answer and tipping the machine forward with large rear tyres to tilt the sieves and retain more grain was the cheap and nasty fix arrived at by AGCO until they did the long sieve mod. [ The comb thingy was removed years ago as it was more of an impediment to the airstream than any real help ] We ourselves haven't yet totally proven the flat sheet approach to the accelerator roll opening is a complete answer as yet due to our very poor yields but Reddens in South Australia have been doing this mod to every Gleaner for some years and are very satisfied with the results. As Rolf has said, just by making a smooth flat surface and smooth flat transition from the wind duct to the accelerator rolls seems to have vastly improved the effectiveness of the fan and it's cleaning ability. Reddens completely replace the top fan duct sheet with another to do this mod but we just flattened the folds in our sheet right out then riveted a length of 12 mm RHS onto the back of the sheet at the top to hold the sheet down on the flat strip between the housing and guide rails on each side . Then we pop riveted another flat sheet which was long enough to cover the gap in front of the roll opening onto the original sheet. Another length of 12 mm RHS was placed on the this sheet at it's back edge or the front of the accelerator roll opening, to hold the edge of the sheet at the front of the roll opening about a 1_2" down below the opening and make the sheet flat and level with the floor sheet towards the back of the machine and behind the roll opening. Bolt holes were drilled through the back edge of the sheet and the RHS and through the housing steel above and secured with 1_4" bolts which can be reached under the concave door area. If you understand all that from my writing you are a genius!!

I was following pretty well till you got to the 1_2" dimension on the duct work but the 1_4" bolts destroyed my concentration totally.Just got healed from the blistering about us northerners and our measurements and you go and throw this at us!Are them SAE 1_4's black marketIJlOl

Well being an old fossil as my DIl [ Rolf's very smart blonde missus ] will tell you with great delight, I often revert to type. Australia only went metric in the early seventies. Prior to that we were still in the pre metric dark ages like some other outfit I know!! Besides you have to very versatile when dealing with the American version of cubits!!

Guys to let you in on a secret! Only really converted Rolfs Old Man (ROM) fully metric in the mid Ninety's! Before that he was spraying in ltrs_Hectare, cropping in lbs_acre and harvesting in bags an acre! and a lot of guys around here have suger bags on their farms!!! :wink: Im currently working on PSI into Kilo pascals for pumping up my tires and such! Rolf

Just an update! We will be installing the inch (25mm) blocks as we can see it will make a difference, but I remembered a few years back we had trouble with linseed been blown out back, we tried every thing with the sieves! eventually I got snaky with it and in the frustration! as you do! and put it in third gear and plowed off in to the sun set! well it fixed the problem! sweet F all out back, as the system was fully loaded up! well I did the same here with our wheat! 0.5 t_Ha average yield, went from 7.5 km_hr 23 PSI boost to 9.5 km_hr 26 PSI boost and reduced our loss to around 10kgs_Ha! best yet! taking straw off at ground level, and shes working fairly hard, but it looks like these hyperizing moves the capacity up the scale a fair bit! Bison at 760 rotor revs, sieves air at 1.8, and using my right hip and shoulder to keep the hydro lever fully forward! :dgrin: We do believe that "when" we do get a good crop, we should continual to do a very similar speed! hears hoping for both! 45 ton_hr is not out of the question for a 260 hp machine! I see that Classe_lexon in the UK got the world record for harvesting 550 odd ton in 8 hours in a 11-12t_Ha crop! around 68t_hr! BUT! the did have 591 Hp :WTF: And Fully Hyperized Bisoned R75 with 350 Hp with a 12.8 meter belt front at 11km_hr in a 5-6 ton crop would whop it! Come on JR! :Grin: you have the already setup machine to do that, as well as irrigated crop!!!! Got to get another one over the Poms! (English) The ton_Hr_Hp ratio for the R series would kill of the HP and fuel consumption of the Europeans! Check out the fuel consumption figures!! at our prices you would want 12 ton_Ha to pay for the fuel! Rolf

Ya dad was pretty close to that in the N7 Rolf. ROM can you post the 400 ton story again we seem to want to hear it around every Xmas. pengs5