Removal of brush hog blades???

   / Removal of brush hog blades??? #1  

Bullzibart

Bronze Member
Joined
Sep 26, 2004
Messages
63
Location
Leyden, Mass.
Tractor
JD 4210
I 'm trying to take off the blades on my brush hog and can't seem to figure it out. They are bolted onto the stump jumper and can't get to the nuts without taking the jumper off. I've taken the main nut off the center and I think it should come off now. I've put a bar under the jumper plate and that won't move. I also beat the plate with a hammer and still nothing. Any help or tricks on getting this off would a great help.
 
   / Removal of brush hog blades???
  • Thread Starter
#2  
I 'm trying to take off the blades on my brush hog and can't seem to figure it out. They are bolted onto the stump jumper and can't get to the nuts without taking the jumper off. I've taken the main nut off the center and I think it should come off now. I've put a bar under the jumper plate and that won't move. I also beat the plate with a hammer and still nothing. Any help or tricks on getting this off would a great help.
 
   / Removal of brush hog blades??? #3  
Never needed to remove one myself so I can't help you there. I just flip the deck on its side and use an angle grinder to touch up the blades.

If you do get it apart put some Never Seize on the threads so it will come apart easier the next time around.
 
   / Removal of brush hog blades??? #4  
Never needed to remove one myself so I can't help you there. I just flip the deck on its side and use an angle grinder to touch up the blades.

If you do get it apart put some Never Seize on the threads so it will come apart easier the next time around.
 
   / Removal of brush hog blades??? #5  
I just did the same thing with a rotary cutter that I have had for about 10 or 15 years and never had the blades or stump jumper off. Get yourself a can of PB Blaster and keep spraying it. Once we got the stump jumper off, we ended up using a 3/4" breaker bar and a 5 foot pipe on the end of it on the nut and a 24" pipe wrench with a 6 foot pipe on the head which was more like a carriage bolt. After we got it off part of the way, we wire brushed the threads and ran it back up with an impact gun and then back down so far spraying it with PB Blaster in between.
Good luck
 
   / Removal of brush hog blades??? #6  
I just did the same thing with a rotary cutter that I have had for about 10 or 15 years and never had the blades or stump jumper off. Get yourself a can of PB Blaster and keep spraying it. Once we got the stump jumper off, we ended up using a 3/4" breaker bar and a 5 foot pipe on the end of it on the nut and a 24" pipe wrench with a 6 foot pipe on the head which was more like a carriage bolt. After we got it off part of the way, we wire brushed the threads and ran it back up with an impact gun and then back down so far spraying it with PB Blaster in between.
Good luck
 
   / Removal of brush hog blades??? #7  
I am sure that you looked, but several if not most have an access hole in the deck. Or at least all need one. If yours don't it would easy to cut one with a cut-off blade in an angle grinder.
 
   / Removal of brush hog blades??? #8  
I am sure that you looked, but several if not most have an access hole in the deck. Or at least all need one. If yours don't it would easy to cut one with a cut-off blade in an angle grinder.
 
   / Removal of brush hog blades??? #9  
You should have an access hole in the top deck of the bush hog. Rotate the pto by hand until one of the two nuts line up with the hole. I use a 1" drive pull bar with extension and socket and pull on the nut with a cheater pipe. The blade bolts are fine thread and should spin fairly easily once broke loose (but can be a pain to break free). The head of the bolt goes in from the bottom so when you get the nut off the blade should drop down. You may have to tap the bolt through from the top side, but be careful not mess up the threads. Do the same for the other side, spinning the pto until it lines up with the access hole. Installation is the opposite.

Word of caution: BE SURE TO BLOCK UP THE BUSH HOG WHEN WORKING BENEATH IT. DO NOT RELY ON THE HYDRAULICS ALONE TO KEEP IT IN THE AIR. ALSO, MAKE SURE THE PTO IS NOT HOOKED TO THE TRACTOR, THE TRACTOR IS NOT RUNNING, IN GEAR WITH PARKING BRAKE SET, AND CHOCKED ON LEVEL GROUND.
 
   / Removal of brush hog blades??? #10  
You should have an access hole in the top deck of the bush hog. Rotate the pto by hand until one of the two nuts line up with the hole. I use a 1" drive pull bar with extension and socket and pull on the nut with a cheater pipe. The blade bolts are fine thread and should spin fairly easily once broke loose (but can be a pain to break free). The head of the bolt goes in from the bottom so when you get the nut off the blade should drop down. You may have to tap the bolt through from the top side, but be careful not mess up the threads. Do the same for the other side, spinning the pto until it lines up with the access hole. Installation is the opposite.

Word of caution: BE SURE TO BLOCK UP THE BUSH HOG WHEN WORKING BENEATH IT. DO NOT RELY ON THE HYDRAULICS ALONE TO KEEP IT IN THE AIR. ALSO, MAKE SURE THE PTO IS NOT HOOKED TO THE TRACTOR, THE TRACTOR IS NOT RUNNING, IN GEAR WITH PARKING BRAKE SET, AND CHOCKED ON LEVEL GROUND.
 
 

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