Help with brush hog

RoyJackson · Jul 3, 2012

300U said:
I have an older 3 point brush hog and I want to get the blades off so I can sharpen them. It has a round disc on the bottom about 14" in diameter with the shaft in the middle. The blades are on opposite sides of this disc and attatched with large bolts with flat heads. I took the 1 1/2" bolt off the center shaft and it looked like the round disc should come off so I can get at the nuts for the blades but I did not come off. It looks like it might be splined and I'm sure it's never been off. I sprayed it with liquid wrench and even heated it but so far no luck. Any suggestions will be helpfull! 300U

Handgrinding is probably your best bet...and all you want to do is touch up the bevel on the blades...you don't want them sharp.

crankshaft21 · Jul 3, 2012

If you really need to pull the stump jumper off, I had to pull mine off once and the way I did it was to turn the bushhog up side down, and then I put two wedges between the body and the bolts on the s j and used a sledge hamer and drove each wedge in the same and it popped right off.

whistlepig · Jul 3, 2012

Pulling the stump jumper off really sucks. I would have a hole burned out over the blade mounting bolts first.

sal64 · Jul 4, 2012

i also use a hand held grinder. i take the top link off wench the brushhog up with the 3ph lower arms still on then i grind the blades .

RoyJackson · Jul 4, 2012

sal64 said:
i also use a hand held grinder. i take the top link off wench the brushhog up with the 3ph lower arms still on then i grind the blades .

I hope you used jackstands to hold the cutter up...

danielc79 · Jul 4, 2012

i turned my cutter over, and put a strap from each blade to my front end loader, and lifted the whole cutter up a couple inches, then hit the shaft with a sledge, it fell right down.

i put the nut that holds the stump jumper on onto the end of the shaft to prevent any damage to the shaft, i also put the nut upside down since it was a castle head type and i did not want to damage the top of the nut.

the nut also prevented the whole cutter from falling down to hard, it only fell an inch or so, the gap between the nut and the stump jumper.

i read alot about this, and got most of these ideas from this forum, but the idea for holding the stump jumper with the front end loader was unique. someone else suggested a chain going from the two blades going over a bottle jack that was positioned directly on the shaft so that it was a gentle breaking apart of the stump jumper from the gear box shaft, but i didn't have a bottle jack. just completed this job 2 days ago.