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I currently have a '94 R62 and am thinking about going to a '04 R75. I was wondering if there is going to be many differances between the two. My R62 has the floor drop kit, injection pump turned up, big rear feed shaft without slip cluth. I have about 2000 sep. hours on mine so only reason for trading is getting something with less hours.
 

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Should be a good upgrade assuming machine is clean, well maintained and has been kept up. A few thoughts: It does have heavy feed floors but does not have the updated transition. Did mine this summer with a Hurtt kit and it worked out well. I really believe Mr. Hurtt has the right idea of shortening the rear of the front floor and not lowering the rear floor just removing the hump. It truly reduces the height the crop has to travel by 1" when the feeder is running at around 20 degrees angle as with a flex head. I have around 760 sep hours now and my grain bin loader tube has now worn thru, though chrome auger looks like new. Check the elevator chain as they break tabs and loose paddles. It should have the big upper feed shaft without clutch, and I'm still using the three strand chains. The 'Drives' brand feed chains are hard to beat for life expectancy. Check main drive idler arm for play. Mine is now worn and recently ordered replacement parts to update to later stronger design. Check the unloader augers as by 750 sep hours, they are getting pretty sharp. M11 engine has been great, very little oil consumption, good power, simple and clean installation with no intercooler piping and air to air heat exchanger. Basic centry fuel system pretty simple compared to 'caps' system on 8.3 litre in the R65. The straight pipe is extremely loud though and in '08 during a rainy spell, installed large muffler used on CASE 4890 4-wheel drive tractors as it is easily available and has venturi built in for air pre cleaner. Made a world of difference on noise especially when the bin is empty. The pre sisu R75 is a well perfected machine but was left with a few loose ends that with some updating can be made into a pretty formidable machine with a minimum of electronic gagetry to cause trouble and expense. Cdf rotor and steep slope thresher helicals do help with beans. Always check the cage, helical, bar and concave especially the concave grate for condition as there are some real wrecks out there that sellers try and pass off hoping the buyer doesn't look closely at this stuff. When you look at the processor, bring a mirror and flashlight to check out the concave and cage and helicals. If it has in excess of 600 sep hours, assume accelerator rolls are in need of replacement if they have not already been done. '04 machines had a lot of fafnir brand bearings and they are the only way to go as they have by far the best seal system. Check the chopper as it probably has the fine cut chopper. Just assume new blades each year about $600 to buy set. If you're lucky it has been converted back to the older hammer style chopper, somewhat longer lived and less expensive to fix. Just a few thoughts, good luck.
 

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You will appreciate the extra horsepower, but beyond horsepower and creature comforts not a big change. I actually dislike the corner post cab design of the 5 series. An 05 will not have the modified feed floor as your 62 does. It may have the 14" unloader which is a tad faster than the 12". Mot sure when sisu showed up but I suspect the 05 probably has the M11 in it. The jury is still out, but in my opinion the sisu is short some torque compared to the M11. CDF rotor would be a bonus, but I doubt it had it installed from the factory. Could have small front feed drums. A fair amount of small changes, but nothing earth shattering. It will have a longer shoe which will help in corn.
 
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