The gearbox on my rotary cutter came from the dealer filled with grease instead of gear oil. When you take out the check plug you just see grease. It’s now 10 years old and I’m wondering if this should ever be changed and if so how? Also how do I know if it has enough now? Like I said, you open it and just see grease.
Rotary cutter gearbox
- Thread starter fishfrank
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Chewwy
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More specific info on the cutter you are talking about would be most helpful.
Xfaxman
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Some rotary cutters use corn head grease, or NLGI grade 0 (zero) grease.
Check this thread: grease in a rotary cutter gear box?
Check this thread: grease in a rotary cutter gear box?
Chewwy
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I can’t imagine that grease should be used in that gearbox. That being said, it apparently came with grease from the dealer and has lasted 10 years. Seems to be ok. Not sure how you could change it anyway, without total disassembly and reassembly.
deserteagle71
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My cutter uses the grease, and that's what is specified in the owner's manual. But I couldn't find a source for the grease - no one around here carried it. So I called the cutter manufacturer for advice and they told me if no NLGI Grade 0 grease is available then just use the heaviest gear oil you can find. Been running that mower for 25 years now; no leaks and no problems with the gearbox.
the rhino tech recommended the same, GL5 85/140 as replacement to their factory grease. if your gearbox doesn't heat up excessively during use, i'd say the lubricant is doing it's job
personally, i'd have no problems converting to the above hypoid gear oil, but the OP will have to make up his own mind. many would say just leave it...but i certainly would not disassemble the gearbox if you do change as one poster recommended. let us know what you decide
personally, i'd have no problems converting to the above hypoid gear oil, but the OP will have to make up his own mind. many would say just leave it...but i certainly would not disassemble the gearbox if you do change as one poster recommended. let us know what you decide
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I’m going to try that. Good idea
you might inquire to the manufacturer if their factory grease product is compatible w/GL5 type hypoids, bet it is... i'm not suggesting change, that's your choice, but just to know, regards