What can you tell me about this hydraulic pump

Rough Draft · Mar 29, 2017

I want to use it on my case 930, it came off of another tractor. I have a 540 pto extension with a gear on it so it can be chain driven.

I know its a Gresen pump. The 12+ means gpm? CCW means counter clockwise but from which side? What RPM should it be turned at and what kind of pressure should it produce?

http://imgur.com/a/zsqMP

I tried to upload to this site but I don't quite understand how to do it >.<

wilson ind · Mar 29, 2017

If you do have a gear and mate to another gear It will reverse the direction. If by gear you mean a sprocket for chain the direction of rotation will remain the same as pto which is clockwise. Picture will help. Is this by chance a charlynn pto pump it should be fine hooked direct.

Rough Draft · Mar 29, 2017

Sorry to clarify it is a sprocket and I have a chain to drive it but if the pump faces in or out from the tractor that will change the direction. My biggest concern here is that most of these pumps were meant to run at around 1200 rpm (i think) so directly hooking it to my PTO it will only run at 540 less than half.

Steve@Advance · Mar 29, 2017

This should 'splain it.
Gresen Pump

wilson ind · Mar 29, 2017

to speed pump to 1200 rpm drive sprocket should be a few teeth more then twice the driven sprocket. Should you wish 1200 rpm at less than full throttle just figure larger drive sprocket. How many teeth now on pump sprocket??

Bob Harvey · Mar 29, 2017

Thank you Ricky - Lucy. ;^)

Rough Draft · Apr 1, 2017

(quoted from post at 17:13:34 03/29/17) This should 'splain it.
Gresen Pump

Thanks this looks like it should have some good information

Rough Draft · Apr 1, 2017

(quoted from post at 17:28:10 03/29/17) to speed pump to 1200 rpm drive sprocket should be a few teeth more then twice the driven sprocket. Should you wish 1200 rpm at less than full throttle just figure larger drive sprocket. How many teeth now on pump sprocket??

I'm not at the farm at the moment so I will have to check later but that's sorta what I thought if the sprocket on the PTO was say 16 teeth then the pump's sprocket should be like 7 or 8.

Rough Draft · Apr 1, 2017

(quoted from post at 17:28:10 03/29/17) to speed pump to 1200 rpm drive sprocket should be a few teeth more then twice the driven sprocket. Should you wish 1200 rpm at less than full throttle just figure larger drive sprocket. How many teeth now on pump sprocket??

I'm not at the farm at the moment so I will have to check later but that's sorta what I thought if the sprocket on the PTO was say 16 teeth then the pump's sprocket should be like 7 or 8.

What can you tell me about this hydraulic pump

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