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Tractor Talk Discussion Forum

synchronous drive PTO, why?

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StuBC

04-12-2007 14:23:47




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I have a tractor with an option of a synchronous drive PTO, it is very very slow turning, associated with travel. I cant figure out why. Can anyone school me on this use? It also has independant 540 rpm pto, but this 3.5 rpm pto is confusing me.

STU




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Vapet

04-12-2007 16:08:30




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 Re: synchronous drive PTO, why? in reply to StuBC, 04-12-2007 14:23:47  
Does good with a mounted hay rake.



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RMinVA

04-12-2007 15:37:48




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 Re: synchronous drive PTO, why? in reply to StuBC, 04-12-2007 14:23:47  
Somewhere on the net (I can't remember) I read that in some other countries the ground speed PTO is used to power the axle on some types of pull type equipment. It gives a lot of extra traction doing so.

My Long and Farmtrac both have the feature. MF we had years ago had it also. If you ever get a post hole digger stuck in the ground the ground speed comes in handy. Just jack the tractor up and put it in reverse and back the auger out. I've also used it to clear a plug in a pull type AC combine, round baler and hay conditioner.

I bought a Hedlund-Martin manure spreader and use it to feed pellets to cows in the drought last year. I used the ground speed to make the machine turn slow. It worked like a charm putting the feed out. I did add an extension to the drop out so the pellets would fall past the spreader tires.

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rrlund

04-13-2007 07:08:47




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 Re: synchronous drive PTO, why? in reply to RMinVA, 04-12-2007 15:37:48  
I remember reading that somewhere too.



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StuBC

04-12-2007 17:14:14




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 Re: synchronous drive PTO, why? in reply to RMinVA, 04-12-2007 15:37:48  
Hey, mine is a Universal, which is a Long right? Must be a Romanian thing. I think I get the jist of the workings. Thanks for all of the input.



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RayP(MI)

04-12-2007 14:37:47




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 Re: synchronous drive PTO, why? in reply to StuBC, 04-12-2007 14:23:47  
PTO like this is sinchronized with rear wheel travel. Could be used to drive an impliment that is dependent on distance traveled, like a planter. A tree seedling planter comes to mind, as an example. Operator would load tree seedlings on a rotating insertion device, and they would be inserted at a set distance apart. Probably others have a better explanation.



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KEH

04-12-2007 14:54:11




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 Re: synchronous drive PTO, why? in reply to RayP(MI), 04-12-2007 14:37:47  

Also the pto will turn backward if you put the tractor in reverse. Sometimes useful for unplugging hay equipment, but usually hay equipment will only turn one way because of overunning clutch in driveline.

KEH



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Ken Macfarlane

04-13-2007 05:26:38




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 Re: synchronous drive PTO, why? in reply to KEH, 04-12-2007 14:54:11  
In eastern canada we use it to drive power log trailers. In wet ground the additional 2 or 4 tires works great for getting around in our wet and snowy woods.



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