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Tue, Mar 30, 10 at 6:11
| What exactly is the black lube/grease inside the Toro walk-behind mowers gearbox?
Is this Bentonite or grease? And during a service at a dealer, is it ever checked or added to with a regular grease compound or is it considered a lifetime lube? Almost all cases contain dry gears and a groove in the lube. |
Follow-Up Postings:
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| When the boxes are serviced, #2 lithium is used in consumer WPMS and no, aren't typically opened up during regular PM. |
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| That's what I've been adding. But the original stuff seems something different. Not sure what the purpose of the original lube is. Gears are usually dry and lube hard. Maybe just a surface coating ??? |
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| Best just to scrape out what you can and fill w/ new. I don't think they are that critical- they just need lube and to keep water etc out. I can see why you thought bentonite when the grease was hard. Lithium blended w/ dirt and water? Just opened my Toro drive manual and I don't see the original lube referenced. Fortunately, I don't see many fail at all. I used to open the 3 speeds when they became problematic to shift etc. Are you primarily talking about the tin lizzy's from depot? Does the gasket come off in one piece and do you reuse it or have a supply of new? |
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| It's rare that I see a gasket and haven't had one tear...yet. Usually metal to metal. Brand new, there is a measured amount of grease in them and it doesn't fill the reservoir, so it's like they want to initially lube the gears and fugetaboutit. |
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- Posted by chesapeakebeach (My Page) on Mon, May 10, 10 at 16:21
| I think baymee has it right -- I was just at the shop and was told that lithium grease (e.g. the kind for a grease gun) would be fine, and that the chamber only needed to be filled up about half way. |
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