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Discussion Forum
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What does live PTO mean?

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08-27-2002 06:37:48

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Stupid question probably... I have an 860 and a friend of mine has an 8N. He says that he cant use his 3pt lift without the PTO spinning? Is that what they mean by live PTO? On my 860 my PTO isnt connected to the lift. Also I have a dual clutch which is what I thought live PTO was.

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08-27-2002 09:24:28

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 Re: What does live PTO mean? in reply to Matt, 08-27-2002 06:37:48  
There is live PTO and there is Live Hydraulics. The live hydraulics is what allows you to raise the lift without the PTO or the transmission being engaged. The 860 has live hydraulics. The 8N does not. Live PTO allows the PTO to continue to operate even when the clutch that drives the transmission is disengaged. The 2nd stage clutch disengages the PTO. The 860 has live PTO. The 8N does not. Independant PTO is independant of the drive train and only needs the engine running to operate. Neither the 860 nor the 8N has independant PTO. If you are interested in adding live hydraulics to your 8N, go to the 2n,9n, 8N discussion board and search for "Live Thang". Hope this helps.

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08-27-2002 09:10:17

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 Re: What does live PTO mean? in reply to Matt, 08-27-2002 06:37:48  
There are 3 types of pto.
1 transmission driven BAD
2 continuous live (2 stage clutch) BETTER
3 fully independent BEST

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gene martin

08-28-2002 18:42:01

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 Re: Re: What does live PTO mean? in reply to DAVE M, 08-27-2002 09:10:17  
Dave M. has the definitive answer in his message 8/27.

I have a Ford NAA (Jubilee).. what Dave described as a 'transmission driven' PTO.
My brother has a Ford 801 with live PTO, what Dave describes as a '2 stage clutch' .
The most modern live PTO is as Dave describes as 'INDEPENDENT'.
At issue is SAFETY !

With OUT a live PTO, pressing in on the clutch will disengage the tractor drive transmission but the PTO, connected to a bush hog still spinning, will transfer this power to the tractor drive transmission continuing to push the tractor forward. "BAD' using Dave's description if you are about to run into the side of a barn and can't stop.

One remedy ( I'd rate it better than BAD not quite as good as the 2-stage clutch)is to install an OVERIDING CLUTCH. This is installed between the PTO and BUSH HOG (or mower etc) and
essentially freewheels the bush hog from the tractor drive transmission.

Best link I've seen showing an over riding clutch connection to a Ford Jubilee is on Ron Webers web site at


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08-27-2002 07:23:42

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 Re: What does live PTO mean? in reply to Matt, 08-27-2002 06:37:48  
I agree with you ... I understood Live PTO means if you engage the cluch to change gears or stop the tractor. the PTO continues to operate

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