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PTO speed on a D14?


 
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Nordic
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PostPosted: Thu Aug 13, 2020 9:39 am    Post subject: PTO speed on a D14? Reply to specific post Reply with quote

When PTO speed is rated 540 RPM (on most tractors) at what engine speed is that rated, in my case on my D14? I am hooking up an implement calling for 720 RPM. Thanks for input from you that are in the know on this.
 
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DrAllis
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PostPosted: Thu Aug 13, 2020 10:12 am    Post subject: Re: PTO speed on a D14? Reply to specific post Reply with quote

Nordic wrote:
(quoted from post at 10:39:58 08/13/20) When PTO speed is rated 540 RPM (on most tractors) at what engine speed is that rated, in my case on my D14? I am hooking up an implement calling for 720 RPM. Thanks for input from you that are in the know on this.
D-14 at 1650 engine speed is 540 on the PTO. Full throttle at 2,000 RPM is about 660 RPM PTO. I doubt that 720 RPM is absolutely necessary. It will still work at slower speeds.
 
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Bob Bancroft
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PostPosted: Thu Aug 13, 2020 1:09 pm    Post subject: Re: PTO speed on a D14? Reply to specific post Reply with quote

I converted a flat belt drive hammer mill with pulleys off a grain dryer. 1000 RPM PTO was then required to get the high speed for fine grinding. But I found I often wanted a coarse grind, or even just cracked grain for the few animals we had. For 540 PTO the AC "C" ran a relatively slow engine speed. I put a governor spring for a late D15 in the C, and got a speed which did just what I wanted. I think it was in the 7-800 range, but can't remember the details!
 
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Nordic
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PostPosted: Thu Aug 13, 2020 5:48 pm    Post subject: Re: PTO speed on a D14? Reply to specific post Reply with quote

Thanks so much for the helpful info in these responses. I have started using a firewood processor. Running full throttle is acceptable but a little slower I suspect than intended performance. So the PTO at 660 from 2000 engine speed makes good sense. It would be good to have a tractor with 1000 PTO as a fuel saving.
 
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Traditional Farmer
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PostPosted: Thu Aug 13, 2020 6:19 pm    Post subject: Re: PTO speed on a D14? Reply to specific post Reply with quote

Look for a David Brown most of them had 540 and 1000 PTO on the same lever.Forward for 540 back for 1000,also very fuel efficient tractors.
 
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Nordic
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PostPosted: Thu Aug 13, 2020 9:19 pm    Post subject: Re: PTO speed on a D14? Reply to specific post Reply with quote

Thanks, I have just started wondering which tractors were made with the higher speed PTO, I wouldn't mind to look for one, I've certainly seen them advertised but never committed to memory which makes, models or years.
 
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Traditional Farmer
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PostPosted: Thu Aug 13, 2020 11:59 pm    Post subject: Re: PTO speed on a D14? Reply to specific post Reply with quote

I have several David Brown tractors a 780,885,1200 and a couple 990 models,usually can be bought pretty reasonable.
 
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