How does everyone sharpen the brush hog blades

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Al shaulis

Member

• Sep 10, 2016

• #1

I have a 10 JD mx10 brush hog mower. How does everyone sharpen their blades. It seems everyone has a different way of doing it. Trying
to find a way that works for me.
Thanks, Al Shaulis
NE Pa.

 

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retired farmer

Well-known Member

• Sep 10, 2016

• #1

We have a fifteen foot batwing. Sharpen the fold up wings with a four and a half inch angle grinder standing up and lay on the ground to sharpen the center blades.

 

3

37chief

Well-known Member

Location

California

• Sep 10, 2016

• #1

On my 6 ft woods I get underneath while the mower is on the trailer, using my 4 I/2 inch grinder. I have plenty of room that way. About every third time I remove the blades, and hit them with my large grinder. Stan

 

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dpendzic

Well-known Member

• Sep 10, 2016

• #1

back mine off a stone wall loading dock and use a hand grinder

 

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Moonlite37

Well-known Member

• Sep 10, 2016

• #1

It is easy to remove the blades on my Woods, so I just take them off and hold in vice and grind with a 9 inch Milwaukee 15 amp angle grinder. I seldom sharpen my 10 foot Howse because the blades take more time to remove

 

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Eldon (WA)

Well-known Member

• Sep 10, 2016

• #1

(quoted from post at 14:48:29 09/10/16) I have a 10 JD mx10 brush hog mower. How does everyone sharpen their blades. It seems everyone has a different way of doing it. Trying
to find a way that works for me.
Thanks, Al Shaulis
NE Pa.

Click to expand...

I just run mine for around 300 hours on my Bush Hog 3008 and then put on a new set...not worth messing around sharpening them when I can put on new ones for around $150. New ones cut better, stay sharp longer and use less fuel. $150 for doing $20k in work is cheap! P.S. if anyone wants some never sharpened blades let me know....

 

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tim s

Well-known Member

• Sep 10, 2016

• #1

If they need sharpened they need thrown away that is a strong but true statement the outer 1 inch does all the cutting when it's worn away the good is gone.

 

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Steve@Advance

Well-known Member

• Sep 10, 2016

• #1

Last time we sharpened them on the 6ft mower, had enough man power to just flip it over, sharpened them with the 4 1/2 hand grinder, still on the mower.

Took a while, but they had been neglected for a long time. Next time hope they don't get that bad!

 

J

JBDyer

Member

• Sep 10, 2016

• #1

Unhook from tractor, flip it over with front end loader, wedge a 3 ft 2x4 between blade and side to keep the blade stationary, grind with weapon of choice, usually 4 1/2" grinder, takes about 30 minutes and cost about $1.79.

 

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ditchwitch

Well-known Member

• Sep 10, 2016

• #1

I have actually heard that before but dont have a problem sharping at least one time

 

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Mike(NEOhio)

Well-known Member

Location

Newbury, Ohio

• Sep 10, 2016

• #1

I have a 5 foot Woods and two sets of blades. Always one sharp set. 4 1/2 in angle grinder takes 10 minutes if I don't let them get real bad.

 

gears

Member

• Sep 10, 2016

• #1

I use a 4&1/2" angle grinder with an 80 grit sanding disc rather than a stone. Also do a double angle cut, repair original angle and dress the cutting edge with a slightly steeper bevel. Seems to stay sharper longer.

 

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Bill in IL

Well-known Member

• Sep 10, 2016

• #1

I would agree with you on that for any mower blade. Seems once that corner is gone they don't work right again and it looses suction cause the blade is narrower or the upsweep is wearing away by then.

 

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Stephen Newell

Well-known Member

• Sep 10, 2016

• #1

I raise the bush hog up with an engine hoist and use a angle grinder without taking the blades off.

 

rusty6

Well-known Member

Location

East central Sask.

• Sep 10, 2016

• #1

In the 23 years I've owned this Farm King six footer I can only remember taking the blades off once to sharpen them. I could not see that it made much difference for the work involved in removing them. Seems to cut just fine for my needs and I have not even looked at them in years. No doubt the blades are well rounded from hitting a few rocks and dirt piles but it cuts just fine for the few acres I have to do.

 

2

2510Paul

Well-known Member

• Sep 10, 2016

• #1

4 and 1/2 inch angle grinder. I raise on 3 pt., put jack stands under for safety, and lay under and grind the top edge of blade. I use a block of wood to rest my head on and a block of wood, maybe a clamp, to block the blade. I don't believe it needs to be razor sharp, I grind until I develop at least an "edge" or "angle break" on what otherwise is a rounded blade. But then again I tend to travel where there are rocks so razor sharp is a waste of time. If I was assured I was just doing grass/weeds/small trees I would sharpen more to save power and make a nicer job.

On my Woods, there are shims to control up/down deflection. I noticed last time I need to shim one of the blades.

Well, I am not proud of it but my Woods has some pretty good gooves in the top metal plate of the brush hog because a stone deflected the blade up more than once. The blade also took out one of the box beam frame members underneath, again from a stone. I have to weld a patch into that box beam one of these days. Where I grow up in the Kettle Morrine of Wisconsin, we had/have rocks big time. And we have big stone piles. Paul

 

ptfarmer

Well-known Member

Location

San Antonio, Tx

• Sep 10, 2016

• #1

When sharpening blades the main thing is not to get them too hot while you are grinding on them. If you get the edge hot enough that the steel turns to a blue color after it cools some you just annealed it (made the steel softer). It'

 

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BarryfromIA

Well-known Member

• Sep 10, 2016

• #1

A very dull blade works real good for killing the weed trees that tend to grow in places that do not get mowed often. I have 2 rear mowers one Bush Hog and a 50 year old Long.

 

Tony in SD

Well-known Member

• Sep 11, 2016

• #1

With the kind of rocks we have. I change blades once a year.

 

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mj

Well-known Member

• Sep 11, 2016

• #1

I get the blade about centered in the discharge opening and clamp a 4x4 block between the blade and the bottom of the deck to hold it still and then go to work with a small grinder.

 

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Texasmark1

Well-known Member

• Sep 11, 2016

• #1

Me too but just hold the blade with the other hand.

 

Hobo,NC

Well-known Member

Location

Sanford, NC

• Sep 11, 2016

• #1

I am the rare bird I take them off if nuttin else my practice makes it EZ to keep the stump jumper form becoming a big deal to get off..

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I can get the blades off no problem as long as I keep a extra set of bolts and nuts that holds the blades on :wink: Sharpen one time thats'zit it gets new the next time...