M939 winch system specs for hydraulic pump,

Hey guys, I'm working on two M925 projects, a water truck and a dump. I'm wondering if any one knows the specs on the hydraulic pump or PTO? Looking for something as simple as GPM at X engine RPM, or even pump cubic inches/displacement and I could figure the rest. Also looking for system pressure relief valve setting.

If no one has the info I will dive in and figure it out so any one wanting to run a hydraulic gizmo would have the info.

Thanks

I dont know the specs,But I have a complete hyd.system for sale from a 939 series truck.

I am under the impression that at gov. speed (2100 rpm) the pump flows 25gpm... i could be wrong though... contact M16TY, he has all the specs for the M939A0/A1 Hyd. system..

Let me give it a shot off the top of my head.

I think the pump is rated at 14gpm @ 1,000 rpm. The PTO turns right at 2,000 rpm at governed speed so that gives you right at 24-26gpm. This is all going by memory as it been awhile and the spec sheet is at work. I can give you concrete figures after I look at the sheet.

You can also do a google search for "vickers vane pump specs" and it will tell you how to decipher the model number.

Here's a link that tells you how to read the numbers- http://www.google.com/url?sa=t&rct=...Re2yZRNGP0EpY2Q&bvm=bv.44158598,d.eWU&cad=rja

You won't find the military pump listed but it will show you how to decipher the numbers on the pump.

Got it.

Thanks!

How much do you want for the hydraulic system?

Anyone know what kind of PSI the pump produces?

the relief is preset about 1750 psi, but can be shimed.

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