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Tractor Talk Discussion Forum

Farmall A

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Martin Miller

10-29-2003 17:47:20




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I was wondering how many horsepower is a Farmall A? Is it capable of running a 4 or 5 foot pull behind brush hog? I appreciate any help.




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fixerupper

10-30-2003 19:31:58




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 Re: Farmall A in reply to Martin Miller, 10-29-2003 17:47:20  
We have run a 5 foot belly mower with a 'B' for 28 years and it is the most dependable mowing machine I have ever seen, but it is grossly underpowered in tall grass,partly because it is a finishing mower. I know the Bush Hog will handle tall stuff a lot better than a finishing mower, but five feet sounds like a bit much. Does someone know if a five foot mower blade requires 25% more torque than a four foot blade because it is 25% longer, or does it require more torque than that? Just wondering.

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Robert in W. Mi

10-31-2003 13:35:40




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 Re: Re: Farmall A in reply to fixerupper, 10-30-2003 19:31:58  
This business that brush hogs need more power than finish mowers because the blades are longer, doesn't work out in the real world. The finish mower has more blades to turn, (read more friction) it cuts and recuts the grass more times, and usually has to move all the grass further. This all takes more HP. I tried (2) diff. tractors, and (4) mowers (4' and 6' in both BH and finish) in my field, (tall grass) and found in both cases, the BH used less power and less fuel to run, compared to the finish mowers. Robert

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Steve W

10-30-2003 08:23:34




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 Re: Farmall A in reply to Martin Miller, 10-29-2003 17:47:20  
If you are the same Martin that is selling the BN, an A is exactly the same engine. I don't think you'd be happy with anything over a 4 foot hog. An H or M might fit your needs better, or if you are lookiing for something smaller in size, a utility style tractor.

Good Luck
Steve



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gene b

10-30-2003 03:07:59




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 Re: Farmall A in reply to Martin Miller, 10-29-2003 17:47:20  
The $64 question is what are you going to mow and keep the blade sharp.



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doug stockman

10-30-2003 03:07:43




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 Re: Farmall A in reply to Martin Miller, 10-29-2003 17:47:20  
I have a 1940 Farmall A. I run a 4 ft brush hog. That is the best size. Most times I can cruise along at 1/2 - 2/3 throttle in second gear. Once in a while I have to drop to first gear when going up a hill and the grass/weeds are thick and over 5 ft high. I hope this helps.

Doug Stockman
Penfield, NY



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Robert in W. Mi

10-30-2003 15:21:39




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 Re: Re: Farmall A in reply to doug stockman, 10-30-2003 03:07:43  
You should be running it wide open, that's where the engine is govenored to run, and your mower will be easier on the tractor. That's also where the engine makes it's highest hp., and has it's highest oil pressure. It's a mistake to think throttleing back is going easier on the tractor. I run my "A" wide open when i'm working it. Robert



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Jonathan

10-29-2003 21:04:28




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 Re: Farmall A in reply to Martin Miller, 10-29-2003 17:47:20  
I would say a 5ft brush hog would be too big unless you only wanted to cut short grass and nothing else. I wouldn't think an A would make a very good brush hogging tractor because it lacks horsepower.



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TimV

10-29-2003 18:17:12




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 Re: Farmall A in reply to Martin Miller, 10-29-2003 17:47:20  
Martin: "Official" numbers on the Farmall A were 16.8 PTO and 12.3 Drawbar horsepower. An "A" can run a 5-ft. brush hog, but that's pushing it, at least in my experience. Of course that depends on the design of the brush hog--an "A" can run a 5' belly (finish) mower with no problem, but the brush hogs tend to be built a lot heavier, which takes more power.



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