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PTO hydraulic pump speed?

Some might Many will not. Cavitation is the destructive result of flow and pressures being unable to follow the teeth or a surface causing a vacuum to form. Rated RPM accounts for these shape related issues. Heating, early failure, and whining are common when overclocked by even 30 to 40%. if the engine turns 2000, and it is a 540 PTO that is 370%. It is yours, Jim
 
Thanks for the reply Jim. My Oliver has a PTO drive available that turns at engine speed. I'm brainstorming a way to power a loader. The Oliver pump is not up to the job. PK
 
That shaft also turns in reverse from a normal pto shaft. Why can't your Ollie supply the loader?I just installed a loader on my 1600 and I'm pretty happy with the performance. Just want to add a separate valve yet to free up the remotes.

Donovan from Wisconsin
 
(quoted from post at 22:35:31 12/05/14) Thanks for the reply Jim. My Oliver has a PTO drive available that turns at engine speed. I'm brainstorming a way to power a loader. The Oliver pump is not up to the job. PK
Click to expand...

I've got an Oliver 60 that had a FEL on it and it had an after-market live pump/valve/reservoir that was mounted to the left (driver's left) frame rail and was belt driven off of the engine. The loader was power-up only type with a trip-dump bucket. There was a bracket bolted to the lower-left corner of the instrument panel that located a knobbed actuating rod that ran forward to the hydraulic valve. I have seen other tractors that drove the pump off of the end of the crankshaft through the hand-crank hole in the front bolster and mounted onto the outside of the bolster. I remember seeing ads for this pump 'back-ln-the-day' but I can't remember the name of the manufacturer. :roll:
 
Looking at the Prince catalog pages, they rate the pumps at 110% of PTO speed. That said I think you might be able to get away with the smallest displacement version. You would be looking at close to 28 gpm at engine speed, need to make sure the rest of your system can handle that. As far as shaft rotation is concerned, the slip on pumps can face either direction on the shaft.
 
That front mount pump is common on the older Ford tractors with loaders. Don't know who made them or where to get but about all loader manufactures had them. Might check Ford boards, both, on this site.
 
I'll trust what the companies say that make the pumps and say "no." All pumps have rated max RPMs posted somewhere. Can you sometimes exceed a bit? Yes. But a PTO pump? If you take a typical PTO pump rated to flow 21 gallons per minute, at 545 RPM, and using 32 horsepower (2000 PSI) - and then spin it five times as fast at an engine speed of 2500 RPM?? Then you've got a pump flowing 100 gallons per minute needing 160 horsepower. You're not going to have hoses, filter, or control-valve big enough to flow that much oil and the system will self-destruct.
 
After a little more thought, and more awake... its been a while since ive had an Oliver, but does that shaft drive direct, or is it clutched? If its direct, you may want to look at a vane pump for easier starting.
poke here
 
What size Oliver? If it has the engine speed PTO outlet (1750 & up) it would make a good place to run a pump. More details find me. J.
 
give us a call we have a PTO pump that drives off the top live shaft at engine speed. ask for gary 71five87five4five77
 
all depends what you are taking about.
that's how the old charlyn pumps were driven on tractors with no hydraulics.
 
(quoted from post at 06:15:46 12/06/14) That front mount pump is common on the older Ford tractors with loaders. Don't know who made them or where to get but about all loader manufactures had them. Might check Ford boards, both, on this site.
Click to expand...

Seems to me that cessna was one manufacturer of those front mounted pumps.
 
Well yeah, I agree. But the poster was asking
about a huge pump designed to make a lot of flow
at slow PTO speeds - and running it a heck of a
lot faster.
 
It's a 1850 with a JD 260 loader. The Oliver pump just can't supply the required GPM, very slow. I just got this PTO pump at an auction cheep and got to thinking. PK
 
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