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Just curious about rotor drive components and what hours they might have issues. I know each machines use and maintenance is a big part. But I have been around many massey machines and I see a few from time to time for sale and that's one part of the machine that's different from other breeds because of the drive motor etc. Just curious what pieces are common fails. And which ones are big ticket items. Like gearbox or drive motor etc. Thanks
 

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Im not real familiar with the 8780 in particular. But I run a 9690, basically the same machine. I have 6500 eng hrs on my 9690 and the rotor drive pump and motor never made me trouble. I did have the main hydro stat go.... Ouch.! $25,000 later I was running it again. I ruined the FWD motors as well. Those were salty pieces. Otherwise the combine has treated me good.
 
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