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540or1000pto?

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teadave

03-15-2000 13:38:28




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is there an easy way to tell if an implement has a 540 vs 1000 rpm gearbox on it?




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Tommy D.

03-16-2000 05:37:55




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 Re: 540or1000pto? in reply to teadave, 03-15-2000 13:38:28  
I've got a rice-burner (L225 Kubota) that has the 12 spline shaft, yet will turn at either 1000 or 540 with the change of a lever. Makes a bush-hog rise up like a helicopter..... .

Tommy D...



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Aaron

03-15-2000 16:15:17




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 Re: 540or1000pto? in reply to teadave, 03-15-2000 13:38:28  
Look at the shaft. If the end has something like 12 splines that are large, it's 540, if there are 21 then it's 1,000. It'd take a real idiot to swap ends, so thats probably the best way.
Aaron



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Mongo

03-15-2000 18:07:37




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 Re: Re: 540or1000pto? in reply to Aaron, 03-15-2000 16:15:17  
This will not always work, but is a good start. I know the old Hesston PT series of mower/conditioners had a 540 shaft, but you could take the gear box off and turn it to make it a 1000 without any change in the shaft. This isn't the best idea going because of the decreased surface area of the 540 coupler.



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Ron

03-16-2000 18:19:09




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 Re: Re: Re: 540or1000pto? in reply to Mongo, 03-15-2000 18:07:37  
I just can't help but ask this. What would anyone do with a pto at 1000 rpm? Is that for turning a spray unit or something? I heard of a man totally wrecking his silage chopper one time running it at 1000 instead of 540.



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Aaron

03-16-2000 19:06:09




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 Re: Re: Re: Re: 540or1000pto? in reply to Ron, 03-16-2000 18:19:09  
A lot of high horse applications are run with 1000. Our stalk shredder is 1,000, think most choppers are, our grain cart is. The 1,000 PTO delivers the power with less torque stress than a 540 so it works a lot better on those things that need high horsepower. The key in all this is CORRECT GEARING. Anything can be ran at whatever input RPM you want, but it has to be GEARED for that speed. I could run at 2,000 RPM so long as the gearbox or drive system had the right ratios to get back down to the correct operating speed for the moving parts in question.
Aaron

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paul

03-17-2000 19:04:43




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 Re: Re: Re: Re: Re: 540or1000pto? in reply to Aaron, 03-16-2000 19:06:09  
Aaron gave a real good reply. To expand, it is hard to get more that 60-75 hp through a 540 pto shaft. The pipes & couplers can only take so much power, or they will bust. By about doubling the speed to 1000 rpm, much more power can be passed down the shaft. Tractors under 60 hp have 540, tractors over 100 have 1000, and somewhere in between there they often offer either or both.

--->Paul



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