Does this sound right? Sharpening blades on a bush hog.
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    Does this sound right? Sharpening blades on a bush hog.

    I took my bush hog into the local dealer to have the blades removed and sharpened. I say removed because I couldn't remove the nut myself using a breaker and cheater. After about 20 minutes I stuck my head into the shop to check on his progress and found him under the bushhog sharpening the blades with them still attached. Ordinarily I'm fine with this but I also wanted him to remove the nuts, put some grease or anti-seize on the threads so I could remove them by hand if needed sometime down the road. I purchased this bush hog a few months ago, it's used, and it looks like the blades have not been off in years. I don't have a 3/4 impact which is what I think it would take to remove the nuts otherwise I would have done it myself. It's an AGCO Farmhand rc250 is that matters.

    He said they don't normally remove the blades because the bolt and nut should be replaced every time they are removed, they are normally torqued at 1000ft/lbs and the bolts need to be driven out of the stump jumper which will eventually "wallow" out the holes. Does this sound right or was he trying to shoo me away?

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    Mar524ak's Avatar
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    Normally we have always replaced the blades. I never have sharpened the blades. We always sell the hardware with it as well. It is what’s recommended. If your in a tight spot you could re-use but it’s best to replace the hardware.


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    I answered my own question. I checked three owners manuals for bush hogs of similar size and construction (2 from Land {ride and 1 Woods). Interestingly all three referenced the same torque on the nuts (450lbs) and said to replace them as needed. So there you go.

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    jgayman's Avatar
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    Do you have a Bernzomatic torch? Normally a bit of heat will help crack those nuts loose.
    2012 2720 -- 200CX Loader -- 54" Quick Attach Snow Blower -- Frontier LR5060 Rake -- Land Pride RB1660 Blade (Hydraulic Angle) -- Artillian 42" Forks -- Ken's Bolt on Grab Hooks -- Fit Rite Hydraulic top-link -- 2013 X500 for mowing duties

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    PJR832's Avatar
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    Sounds right, we always sharpen blades still on, not like we are trying to get a razors edge on them. But when we have replaced them we always buy the hardware kit.
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    Pat
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    Don't know if this will help you in the future but whenever I run across a stubborn nut and bolt, a bit of heat from the bern-so-match followed with some candle wax melted on the threads works better than penetrating oil
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    IndianaJim's Avatar
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    Quote Originally Posted by PJR832 View Post
    Sounds right, we always sharpen blades still on, not like we are trying to get a razors edge on them. But when we have replaced them we always buy the hardware kit.
    Well maybe YOU arent....
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    PJR832's Avatar
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    Quote Originally Posted by IndianaJim View Post
    Well maybe YOU arent....
    Well played

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    Pat
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    Quote Originally Posted by jgayman View Post
    Do you have a Bernzomatic torch? Normally a bit of heat will help crack those nuts loose.
    I don't have a torch but it would likely take a lot of heat based on the size of the bolts we're dealing with. Really though a 3/4 impact should do the trick and then I can put some anti-seize on the threads so I can remove them in the future.
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    I know from previous posts that some of you have issues with Tractor Mike videos, but I have learned a lot from them. Among his most recent videos are (1) when to replace brush hog blades, (2) how to sharpen brush hog blades, and (3) removing brush hog blades.

    Here are the links, if anyone is interested in watching.

    https://www.youtube.com/watch?v=4haQBqfZl1Q
    https://www.youtube.com/watch?v=Lllw_odH_24
    https://www.youtube.com/watch?v=272VymKTDIo
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