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Rotary Brush Cutter Questions

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Bill

12-07-2002 10:00:42




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I am putting back together an old Hardee rotary brush cutter. I cannot find any place for a shear pin and there is no slip clutch. My question is - generally where is a shear pin located?

On another note, I will be buying a 6' rotary brush cutter this spring and some of those things are really heavey - 1000+ lbs for a medium duty. My question is - what are the advantages/disadvantages of a pull vs a 3-pt lift cutter? I am thinking given I have a 40 year old tractor, I may or may not be able to lift such a heavy cutter reliably - but I could certaintly pull one.

Last question - what is your opinion of buying a used rotary brush cutter?

Thanks in advance for your replies!
Bill

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Sam in PA

12-10-2002 10:29:37




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 Re: Rotary Brush Cutter Questions in reply to Bill, 12-07-2002 10:00:42  
I sorta like the 3 pt - when i lift it that takes weight off my Ford 5000 w/o power steering and makes it easier to steer. It also is easier to back up againts things for close cuts w/o a wheel in the way as well as easier manuvering, at least in my opinion.



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Morgan

12-07-2002 16:25:42




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 Re: Rotary Brush Cutter Questions in reply to Bill, 12-07-2002 10:00:42  
I have john deere mod.A with 3 point but I found that I like drag type better. I use a john deere GYRAMOR # 307 -6 ft. wide. Its a drag type and I bought it in an auction this spring for $150. in good orignal cond. took it home behind my pick-up. I've used a 3 pt shredder and found that it was hard for me to use , when I would mow around my wife's orchard and turn the wrong way I would sometimes cut off the trees or break them(not good for me). With a drag shredder it will follow you as you go-in other words if the tractor tires clear something then the shredder will follow.

morgan

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350 Don

12-07-2002 15:34:25




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 Re: Rotary Brush Cutter Questions in reply to Bill, 12-07-2002 10:00:42  
A pull type has some advantages but so does a 3 point. As you point out, they can be heavy. I thing you would be able to lift it if your hydraulics are good, but they do make the front end a little light when lifted. That won't happen with the trailer type. Although I have a 3 point, I think a trailer type is easier to use, but not as easy to get in tight corners. The three point swings wide to the opposite side when turning tightly, and that can get hard on fence posts. That isn't a problem with the trailer type. All in all, the trailer type would be preferable for me but they are more expensive to buy and I couldn't find a good used one when I was looking. Either will get it done for you but you'll have to decide which you think fits your needs best.

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norm

12-07-2002 13:38:05




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 Re: Rotary Brush Cutter Questions in reply to Bill, 12-07-2002 10:00:42  
The shear pin is the #2 bolt that attaches the rear half of the driveshaft to the cutter shaft. Not sure what you mean by a "pull vs 3 point lift" cutter, however if you have a 3ph tractor you definitely want a 3ph cutter for transport and getting in an out of tight situations. You don't mention the hp of your tractor, but you should have at least 30 pto hp to operate a 6' cutter, (generally hp divided by 5), also, I like to stick within the approximate wheel width of the tractor. Nothing wrong with a used cutter, just make sure it will turn freely by hand, no oil leaks, and blades swing freely on the hub.

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Bill

12-07-2002 13:44:03




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 Re: Re: Rotary Brush Cutter Questions in reply to norm, 12-07-2002 13:38:05  
My tractor is 38 hp. To clear the width of the tractor I would need a 6 ft.

Thanks!
Bill



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jw57

12-08-2002 17:05:19




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 Re: Re: Re: Rotary Brush Cutter Questions in reply to Bill, 12-07-2002 13:44:03  
please advise what make and model. also if tractor is equipped with remote cyl systemtrailer type would be safer if any question about front end stability



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Bill

12-08-2002 19:36:35




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 Re: Re: Re: Re: Rotary Brush Cutter Questions in reply to jw57, 12-08-2002 17:05:19  
It is a MF50 diesel. It has a remote.

Thanks!
Bill



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Bill

12-08-2002 19:31:33




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 Re: Re: Re: Re: Rotary Brush Cutter Questions in reply to jw57, 12-08-2002 17:05:19  
It is a MF50 diesel. It has a remote.

Thanks!
Bill



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jw57

12-09-2002 16:12:11




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 Re: Re: Re: Re: Re: Rotary Brush Cutter Questions in reply to Bill, 12-08-2002 19:31:33  
sorry i am not familiar with the 50 .ballest in the tires will help any tractor weights are good too however IMHO they dont help as much with steering please be careful



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jw57

12-09-2002 16:11:44




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 Re: Re: Re: Re: Re: Rotary Brush Cutter Questions in reply to Bill, 12-08-2002 19:31:33  
sorry i am not familiar with the 50 .ballest in the tires will help any tractor weights are good too however IMHO they dont help as much with steering please be careful



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JMS/MN

12-07-2002 13:35:30




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 Re: Rotary Brush Cutter Questions in reply to Bill, 12-07-2002 10:00:42  
A shear pin is sometimes located where the pto is attached to the gearbox. Sometimes the front knuckle of the pto is where the pin is located, along with a retaining device that keeps the pto parts together, letting them spin while rotation dwindles. Is your pto shaft original, or just a common unprotected shaft that someone added?



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Bill

12-07-2002 13:45:23




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 Re: Re: Rotary Brush Cutter Questions in reply to JMS/MN, 12-07-2002 13:35:30  
I am not sure if the PTO shaft is original.

Thanks!
Bill



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