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Implement Alley Discussion Forum

Bush Hog Gearbox Oil

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Author  [Modern View]

09-01-2011 10:50:00

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I have a International 6ft IT-500 Bush Hog What should the level of Oil be in the Gear Box... and Type/Weight? HOW to measure it? Thanks Fellas' Larry KF4LKU

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09-01-2011 15:18:08

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 Re: Bush Hog Gearbox Oil in reply to MOTORCRAFTMAN, 09-01-2011 10:50:00  
I have a old ford bush hog and about 3 years ago it started to leak. I put J.D. corn head grease in it and it has never lost any more. I figure if it is good enough for a high dollar corn head it is more then OK for my cheap bush hog.


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09-01-2011 15:14:23

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 Re: Bush Hog Gearbox Oil in reply to MOTORCRAFTMAN, 09-01-2011 10:50:00  
I have an IH #111 rotary cutter. When the gearbox began to leak (80W90), I simply pumped in grease and haven"t had any troubles.

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Billy NY

09-01-2011 11:31:37

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 Re: Bush Hog Gearbox Oil in reply to MOTORCRAFTMAN, 09-01-2011 10:50:00  
On the gear box, is there a small square plug and a large one, the small one when removed (if so on this model) would indicate the correct level of oil, some should spill out, if not top off, flip over unit, drain, change oil. I use Lucas 85W-140, or 90 wt. in my rhino, most I have seen use similar, my book called for 00 or 0 type lube, which is thicker, stringy/tacky, probably does not leak beyond seals, mine seems to not leak, seals holding. I could not find the 00 or 0 in small quantities, the Lucas works well and stays clean a good while, I do change mine annually, some never bother, each to his own.

One of my friends has a small 4'-0" model, not sure what kind, it has both plugs but the bottom one has a grease fitting, which probably was installed long after it left where it was built, or gearbox built. Some with leaky seals use cartridge grease when shaft seals leak.

Personally, I'd rather fix the seals, because who knows how many different kinds of grease, how much is in there, venting, and or mixing non compatible soap bases (different grease's mixed). What if you want to change or clean out the gearbox lube, potentially a mess, or maybe not ??? There may also be a vent in the filler plug, one of ours has that, let that get plugged and it pushes lube out somewhere. I've run these kinds of mowers since I was 10 years old, never had a gearbox failure. Many others use regular grease in them, I've always wondered if that lubes properly and or long term effects, as those gear boxes are kind of like differentials, all have an oil or something more viscous than grease when new, I believe, good for discussion, and also good to mention that I'm not familiar with IH models, but never let one run dry that is for sure.

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09-01-2011 19:22:15

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 Re: Bush Hog Gearbox Oil in reply to Billy NY, 09-01-2011 11:31:37  
i've got a Ford Sabre 5' shredder that my grandfather bought new in early '62...bottom seal went out in '65 and gearbox was filled with multipurpose got 3 more pumps of grease every couple months...i finally got tired of redecking it in '94 and bought a new one...the Sabre is still in pasture if i need it...gearbox is tight as day one.

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