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Implement Alley Discussion Forum

Re: Rotary Cutter gearbox maintenance

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Author  [Modern View]

08-20-2013 15:13:23

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thanks for the reply,
I am a certified KY redneck, so I went another way,

I leveled the cutter, then took both upper and lower fill/drain plugs out, then started tractor and let it idle with cutter running,

this action pumped the oil out of the lower hole, am sure I did not get all the oil out, but enough for me. I refilled the gearbox to the proper level with 90 weight gear oil.

I plan to run the cutter for a few hours then drain the gearbox again using the same method, that should get 80%+ of the old oil out of the gearbox.

time will tell if it works, if not and the gearbox starts leaking, it will get lubed with john deere or caseIH cornhead grease.

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Billy NY

08-21-2013 06:30:30

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 Re: Rotary Cutter gearbox maintenance in reply to maxwell99, 08-20-2013 15:13:23  
I was curious about NLGI 000, and while doing some reading on the web, I decided to look up JD Cornhead grease, figuring it has to have a NLGI designation. Cornhead Grease is NLGI 0, by description its thicker, less viscous than 000, for low speed gear cases such as row unit gear cases on JD cornheads. 000 is described as the consistency of cooking oil, while 0 is described as being like brown mustard. So there is an obvious difference, book on mine calls for 000, not sure if a less viscous grease would be desirable, for a faster moving differential/gearbox.

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