Pto pump for 14 gpm at 1500rpm

[Cuatro]

We are using a John Deere 6403 tractor with an attachment. Need a dedicated PTO pump to put out 14 gallons a minute at 1500 RPMs. We use these tractors six days a week so we want a quality part. Any suggestions?
Thanks

 

[Xfaxman]

I always recommend Surplus Center, but they are out of stock now with more on order:

Some on eBay, might also need a flow control: Pto pump 14 gpm 540 | eBay

 

[Cuatro]

Is the flow based on a engine rpm at 2200?
If so should i go to a 21 gpm pump to get 14 or so at 1500 rpm?

 

[Whatswrong]

5.7 CU IN PRINCE HC-PTO-3A PTO PUMP 1 RPM
If I understand your reference to speed being engine then I think you would be close with this one using your 21 spline shaft . My guess is it would lower the output by about 30%.

IF everything is in direct proportion .

 

[Cuatro]

5.7 CU IN PRINCE HC-PTO-3A PTO PUMP 1 RPM
If I understand your reference to speed being engine then I think you would be close with this one using your 21 spline shaft . My guess is it would lower the output by about 30%.

IF everything is in direct proportion .

My pto is a 540, not 1000. I just dont want to run motor at 2200rpm, we will run diesel motor at 1500 rpm, and need out put of 14 gpm from hydrulic pto pump

 

[Leejohn]

You sure about the PTO RPM? It should have both and you flip the pto shaft.

 

[Cuatro]

You sure about the PTO RPM? It should have both and you flip the pto shaft.

No i am not
I will check that.

 

[jenkinsph]

Is the flow based on a engine rpm at 2200?
If so should i go to a 21 gpm pump to get 14 or so at 1500 rpm?

PTO rated speed is 2066 rpm so a 21 gal/minute pump would produce about 14.8 gals/minute at 1500 rpm. That should be close enough if not you can adjust the engine speed to match what you need. You should have both 540 and 1000 rpm pto on your tractor. A 21 gal/min pump rated for 540 or 1000 will work, more likely to find the 1000 rpm pump I suspect.

 

[Cuatro]

Thanks

 

[Texasmark]

Input shafts of equipments are sized for the expected rpms. If design is rated at 540 rpm it will have the conventional 6 point female receptacle with no regard for the engine speed or size. If 1000 the 21 input receptacle.

I have a 16 gpm low mode, 3000 PSI in the high mode, 2 stage pump that requires 8 hp, made for a small engine but the pumping principle is the same. Hang that on a 30 pto hp tractor (assuming it was in that configuration) at rated rpm (2400) rpm and you are wasting your money on wear and tear and fuel costs. Get the same capacity pump in PTO version with a 21 spline female (plus a 540-1000 rpm adapter for your tractor's PTO shaft) and you can cut your engine to half throttle and get the work done and have your 14 gpm.

 

[Texasmark]

Input shafts of equipments are sized for the expected rpms. If design is rated at 540 rpm it will have the conventional 6 point female receptacle with no regard for the engine speed or size. If 1000 the 21 input receptacle.

I have a 16 gpm low mode, 3000 PSI in the high mode, 2 stage pump that requires 8 hp, made for a small engine but the pumping principle is the same. Hang that on a 30 pto hp tractor (assuming it was in that configuration) at rated rpm (2400) rpm and you are wasting your money on wear and tear and fuel costs. Get the same capacity pump in PTO version with a 21 spline female (plus a 540-1000 rpm adapter for your tractor's PTO shaft) and you can cut your engine to half throttle and get the work done and have your 14 gpm.

The one in the picture female input connection is for a 540 shaft so your rating on it is at 540 and 2400 or whatever your tractor rpms are for a 540 pto.

 

[jenkinsph]

The one in the picture female input connection is for a 540 shaft so your rating on it is at 540 and 2400 or whatever your tractor rpms are for a 540 pto.

The whole thread has been about running this tractor at 1500 rpm with a properly sized pump to yield 14 gallons per minute. This is easily accomplished by using a 21=22 gal/min pump and running the tractor at the reduced engine speed of 1500 rpm.


He could use your method with a 1000 rpm shaft slowed down to about 540 with the engine running about 1150 rpm but that is not what he was asking about.

 

[Texasmark]

The whole thread has been about running this tractor at 1500 rpm with a properly sized pump to yield 14 gallons per minute. This is easily accomplished by using a 21=22 gal/min pump and running the tractor at the reduced engine speed of 1500 rpm.


He could use your method with a 1000 rpm shaft slowed down to about 540 with the engine running about 1150 rpm but that is not what he was asking about.

Well just suppose he can't find that which he "specifically wants"?

 

[Cuatro]

Thanks, i have the info needed to do my trial for this attachment. Thank you

 

[jenkinsph]

Well just suppose he can't find that which he "specifically wants"?

The pumps are available to fill these requirements in both 540 and 1000 rpm.

There is also a pump that will run at the 1/2 speed method of approximately 1150 rpm that you speak of without the need for an adaptor.

I think he has found what he needs to meet these requirements he stated.

 

[muddstopper]

trying to figure out if hes wanting to turn the pump at 1500 rpms or at pto speeds of 540 or 1000 rpms. Seems he is wanting to run the engine speed at 1500rpms. So I dont know what he's really trying to do. Anyways, pump flow is determined by the cuin displacement of the pump and the rpms the pump is ran. There is 231cuin to a gal. 14 gal is 231x14=3234cuin. / by 1500rpms= 2.156cuiin pump. @ 1000rpms=3.234 cuin pump, and @540rpms=5.98cuin pump.

 

[ovrszd]

That's the technical info he needs to get a precise answer. Good stuff.

 

[jenkinsph]

trying to figure out if hes wanting to turn the pump at 1500 rpms or at pto speeds of 540 or 1000 rpms. Seems he is wanting to run the engine speed at 1500rpms. So I dont know what he's really trying to do. Anyways, pump flow is determined by the cuin displacement of the pump and the rpms the pump is ran. There is 231cuin to a gal. 14 gal is 231x14=3234cuin. / by 1500rpms= 2.156cuiin pump. @ 1000rpms=3.234 cuin pump, and @540rpms=5.98cuin pump.

He wants to run the engine at 1500 rpm and use a properly sized pto pump to produce a flow of 14 gpm.

The rated pto speed for the tractor is 2066 rpm. 1500/2066=.726 .726x540=392 rpm .726x1000=726
Using your numbers 3234 cuin/392rpms=8.25 cu in displacement per revolution. For a 1000 rpm shaft 3234/726=4.454 cu in displacement.

Then find one that is close enough to make it work. Or if **** retentive have a pump shaved to the proper displacement.

 

[muddstopper]

He wants to run the engine at 1500 rpm and use a properly sized pto pump to produce a flow of 14 gpm.

The rated pto speed for the tractor is 2066 rpm. 1500/2066=.726 .726x540=392 rpm .726x1000=726
Using your numbers 3234 cuin/392rpms=8.25 cu in displacement per revolution. For a 1000 rpm shaft 3234/726=4.454 cu in displacement.

Then find one that is close enough to make it work. Or if **** retentive have a pump shaved to the proper displacement.

I didnt know the ratio for engine speed to pto speed, assuming your rated speed is correct, then the rest of your math is correct also.

 

[jenkinsph]

I didnt know the ratio for engine speed to pto speed, assuming your rated speed is correct, then the rest of your math is correct also.

Rated engine speed for pto was provided by Nebraska test report #1808 here. http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=3236&context=tractormuseumlit