brush hog blades

Ken Midlam · Sep 20, 2015

Wondering if it is worth it sharpen the blades of a brush hog or buy new ones

David G · Sep 20, 2015

They are a PIA to change, I would try to sharpen.

markct · Sep 20, 2015

For the cost of a pair of blades you could buy a angle grinder. And I dunno about you but it takes me longer to take em off to change them than it does to simply sharpen them on the mower

37chief · Sep 20, 2015

I sharpen mine all the time to remove rock damage. I sharpen them underneath with a 4 in grinder. Then remove a couple times a year and hit them with my 6 in grinder. My Woods blades are easy to remove from the top. Then reinstall underneath. know some area a real pain to remove. If I have a real bent up blade I weigh the replacement blade to get them close to the same weight. Stan

Traditional Farmer · Sep 20, 2015

Depends on whether they are straight or bent and beat up so they are out of balance.
Vibration from out of balance blades will lead to premature gear box failure.

BushogPapa · Sep 20, 2015

If ya do remove the blades, it get's easier if done a time or 2 per year...

I like to grease the Pivot Bolt well and use a 3/4 HP 8" Double Wheel Grinder on mine..(so I can make the FIRE Fly)..!!

Keep a bucket of water handy to dip the blade after each grinding pass...

Ron..

Jerry/MT · Sep 20, 2015

It depends what kind of shape they are in. if they"ve hit a lot of rocks than replacement might be better than trying to sharpen them unless you remove them. You need to make sure that after you sharpen them, they weigh the same or you"ll have a vibration problem from the unbalance.

My major concern is with small cracks that can propagate and cause an uncontained failure that could seriously damage the tractor, the operator or someone nearby. If they are really beat up, consider changing them. Two blades and new bolts are generally under $100 total.

Eldon (WA) · Sep 20, 2015

(quoted from post at 16:24:49 09/20/15) Wondering if it is worth it sharpen the blades of a brush hog or buy new ones

I did the math, and if I get 200 hours on a new set of blades it costs me about 1% of that for new blades. New blades cut better, take less fuel and last longer than re-sharpened ones...so I am just going to use new ones. Also it is a good idea to remove those bolts once in awhile to keep them from rusting themselves in place. Bush Hog says to replace bolts when replacing blades, but I disagree. I have over 1200 hours on one of my mowers and the bolts are fine.

Russ from MN · Sep 20, 2015

I sharpen mine on the cutter, I wouldn't replace them unless they were bent real bad. Just be careful to grind about the same on each one.

Dean · Sep 20, 2015

I keep the blades on my rotary cutters sharp.

I routinely touch them up with a 4 1/2" angle grinder after use before putting things away. It usually takes less than ten minutes.

Sharp blades cut better, and require less HP and fuel.

Of course, the routing grinding results in more frequent replacement.

Dean

brush hog blades

Ken Midlam

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David G

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markct

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37chief

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Traditional Farmer

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BushogPapa

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Jerry/MT

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Eldon (WA)

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Russ from MN

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Dean

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