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  1. #1

    Default Need help with a Sundstrand Piston Pump

    I am trying to find a tech bulliten, or any other possible information on the SUNDSTRAND model 36-2119 heavy duty, hydrostatic pump. It has 12VDC EDC servo control with pressure limiters and manual override. Charge pump pressure 230-250 PSI. Charge pump has spin-on filter.

    The specification known are:

    6.0 cu. in. per rev. disp.
    3,500 PSI cont.
    6,000 PSI int.
    2,880 RPM max
    50 GPM at 2,000 RPM
    1.30 cu. in. per rev. charge pump disp.
    4 bolt, SAE C mount
    CCW input rotation
    Ports: A/B-1" 6000 PSI 4 bolt flange
    Case drain-SAE 12
    Charge pump inlet-SAE 12
    1-3/4" dia. x 2-1/8" long 13 tooth splined input shaft
    Overall size 16" x 14" x 12"
    Shpg 225 lb

    I am most concerned with the controls of this pump. The Sunstrand pump is electronically controlled, proportional over hydraulic. We need documentation so we can interface with it. We may be able to bypass the EDC and drive it hydraulically, but some additional data is needed.

    We have searched and searched, and cannot find any data on this pump. I know it is an older pump and is definately been out of production for a while. I called a couple repair places, and they can't even find repair parts.

    If anyone has any experience with this pump, or has any data stuffed in their file cabinets, or anything, we would greatly appreciate it.
    Attached Thumbnails Attached Thumbnails -36-2119-jpg  

  2. #2
    Veteran Member Treemonkey1000's Avatar
    Join Date
    Jan 2008
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    Renton, Washington
    Tractor
    Kubota L3750

    Default Re: Need help with a Sundstrand Piston Pump

    1st Peter 1:6-9

  3. #3

    Default Re: Need help with a Sundstrand Piston Pump

    Quote Originally Posted by Treemonkey1000 View Post
    Ya, I called them too. They say they know the products they sell, but they don't know anything about the pump. Didn't seem to interested in helping me either.

    I will shoot an email to that email address and see if they come up with anything. It's sad, when people realize all you want is information and you aren't getting out your credit card, they shut down real quick. In a way I don't blame them, but I figure the one that does help me with be the first I think of when I need to purchase something.

  4. #4
    Elite Member dfkrug's Avatar
    Join Date
    Feb 2004
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    4,883
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: Need help with a Sundstrand Piston Pump

    You have to contact the manufacturer for something like that. I have
    been successful getting thru to engineers at some places like Parker,
    White, and Prince. You just have to find their tech support on their
    website and call or email.

    What do you want to use this for?

  5. #5
    Elite Member
    Join Date
    Jan 2010
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    2,802
    Location
    Northern, IL
    Tractor
    Branson 2400H

    Default Re: Need help with a Sundstrand Piston Pump

    From memory and it is very feeble. I am 99% sure I threw away my sunstrand catalogs and CD when I moved 3 months ago. been storing them for several years and didn't want to move more stuff than I had to. Will check tonight when I get home.

    There is a slim chance you could override the EDC control manually but I am not sure. Probably take a different control head.

    One distributor / repair center I know of that might have info is Sun Source/ Fauver in Minneapolis area. I do not remember which burb they are in. They used to be a fairly large distributor of the Sundstrand hydro's.

    good luck

    Roy

  6. #6
    Elite Member
    Join Date
    Jan 2010
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    Northern, IL
    Tractor
    Branson 2400H

    Default Re: Need help with a Sundstrand Piston Pump

    Yes, I threw away all my old manuals and CD's. Further proof no deed goes unpunished...

  7. #7
    Super Star Member EddieWalker's Avatar
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    May 2003
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    16,110
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    Tyler, Texas
    Tractor
    Several, all used and abused.

    Default Re: Need help with a Sundstrand Piston Pump

    I have Sundstand pumps on my Case Dozer, and nobody supports them. Case will only see a replacement pump for $25,000 each. They will not service or fix them. I ended up going to a place who was willing to fabricate the parts that I needed. Beware of Sundstrand pumps.

    Eddie

  8. #8

    Default Re: Need help with a Sundstrand Piston Pump

    Thanks guys, I really appreciate all the help. I did talk to an engineer finally that says he thinks he can help. We'll see what comes of that.

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