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#1 DH1 ONLINE  

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Posted February 21, 2011 - 10:32 PM

OK here's a question I got to ask.
How many PTO hp is needed to drive the following?

1 - 5ft finish mower

2 - 5ft flail mower

3 - 5ft brush or bush hog mower (swing blades)

I know there are variables here like, how long, thick, wet is the grass and how fast the tractor moves.
Most places I look tell me 5hp per ft, but they also say flail and brush take more hp than a finish mower does.
Anybody know, any help advice would be appreciated.

#2 Texas Deere and Horse OFFLINE  

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Posted February 21, 2011 - 10:42 PM

I never had a finish mower, so I can't help with that one. 2 Had 5'flail on a ford 2000 gas,about 30HP, PTO ran it just fine. 3 Had a Allis Chalmers "B" that we had a 5' bush hog on. It had about 20HP, PTO and did well with it in most conditions.

Hope this helps.

I would think 18 to 20hp would do them all.

#3 DH1 ONLINE  

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Posted February 22, 2011 - 06:53 PM

Your Ford 2000 is it 4cyl.? 4sp or 5sp?

#4 Texas Deere and Horse OFFLINE  

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Posted February 22, 2011 - 08:17 PM

3cylinder gas, 4sp. with hi/low.

#5 olcowhand ONLINE  

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Posted February 22, 2011 - 08:23 PM

The Massey 1010 diesel is 16hp with 13hp at the pto. It runs a 60" finish mower easily and would handle a 5' bush hog also. You'd need at least an 18hp gas engine to run either proper.
Flails are another matter....add minimum of 40% more hp needed.

Edited by olcowhand, February 22, 2011 - 08:40 PM.


#6 daytime dave OFFLINE  

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Posted February 22, 2011 - 08:38 PM


I would think 18 to 20hp would do them all.


I would agree. We use a PTO clutch overdrive on the shaft end with the brush hogs.

#7 Texas Deere and Horse OFFLINE  

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Posted February 22, 2011 - 08:41 PM

Dave, Did you mean that you used a PTO over run clutch, so you could stop the tractor before you went through the fence.

#8 olcowhand ONLINE  

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Posted February 22, 2011 - 08:42 PM

Did you mean that you used a PTO over run clutch, so you could stop the tractor before you went through the fence.


And pass up on all that fun???????? :rofl2::rofl2::rofl2::rofl2:

#9 DH1 ONLINE  

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Posted February 22, 2011 - 08:45 PM

I have Ford farm tractor, rated 32hp at pto, tractor has fresh engine and runs good.
What I want to do is get a 6ft Finish mower or a 5ft Flail mower for it.
Do I have enough power to drive these.
Right now it has a 5ft finish mower, cuts normal grass on 1st or 2nd without any problems.

#10 olcowhand ONLINE  

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Posted February 22, 2011 - 08:47 PM

I have Ford farm tractor, rated 32hp at pto, tractor has fresh engine and runs good.
What I want to do is get a 6ft Finish mower or a 5ft Flail mower for it.
Do I have enough power to drive these.
Right now it has a 5ft finish mower, cuts normal grass on 1st or 2nd without any problems.



You WILL be good to go with any of these Doug!
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#11 Texas Deere and Horse OFFLINE  

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Posted February 22, 2011 - 08:48 PM

Doug, 32 PTO hp should be more than enough for a 5' flail mower. I wouldn't think you would have any problems.
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#12 Texas Deere and Horse OFFLINE  

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Posted February 22, 2011 - 08:50 PM

And pass up on all that fun???????? :rofl2::rofl2::rofl2::rofl2:



You only have to do it once, and then you really know what fun is...:bigrofl::bigrofl:

#13 olcowhand ONLINE  

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Posted February 22, 2011 - 08:51 PM

You only have to do it once, and then you really know what fun is...:bigrofl::bigrofl:

A feeling of complete & total helplessness! All you can do is steer!

#14 DH1 ONLINE  

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Posted February 22, 2011 - 08:55 PM

The Massey 1010 diesel is 16hp with 13hp at the pto. It runs a 60" finish mower easily and would handle a 5' bush hog also. You'd need at least an 18hp gas engine to run either proper.
Flails are another matter....add minimum of 40% more hp needed.


Not trying to be difficult here but at the landscapers they had a Kubota b2300 it was 15hp + - , diesel, we ran a 4ft bush hog on it and it had barely enough power, the only way it worked was to raise and lower the deck or crawl, almost stop though field grass we cut.

#15 DH1 ONLINE  

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Posted February 22, 2011 - 09:19 PM

My computer connection is slow tonight, can't keep up to you guys.
The problem I have with this tractor is that in 1st gear, the lowest gear, with the engine turning at 1500rpm, the pto is turning at 54orpm the tractor moves at 2.7mph. Just a little too fast for long heavy grass.
There is no way to slow the travel speed down and maintain the pto rpms at 540.
Half the time for field cutting this is too fast. When this happens all I can do is raise the deck.
If I speed up the engine everything speeds up and visa versa.
So knowing that does this tractor have enough hp to do the job?
And it does have the overrun clutch on it.




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