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  1. #21
    New Member
    Join Date
    Jul 2013
    Posts
    6
    Location
    Murrysville, Pennsylvania
    Tractor
    1948 Ford 8n, 1951 Ford 8n

    Default Re: Liberty Backhoe

    Quote Originally Posted by dfkrug View Post
    90W gear oil?! That's awful thick. Is that what the manufacturer called for?
    Yup. Seemed odd to me too for a new piece of equipment. My Fords all require that for the hydraulics, but they're over 60 years old. Works like a charm though.

  2. #22
    New Member
    Join Date
    Aug 2009
    Posts
    5
    Location
    Kingston,Nova Scotia,Canada
    Tractor
    Taskmaster 432 w/FEL

    Default Re: Liberty Backhoe

    Wow..that is some thick..90w for a hyd. system!!!
    I am very sure that would not work for me here at -20, digging holes

  3. #23
    New Member
    Join Date
    Jul 2013
    Posts
    6
    Location
    Murrysville, Pennsylvania
    Tractor
    1948 Ford 8n, 1951 Ford 8n

    Default Re: Liberty Backhoe

    Probably work OK if you warmed it to +40 or so before you started...

    I don't plan to do much digging here in PA in temperatures below freezing. My tractors are tempermental below 32F, so I end up using dipstick heater's in the winter so I can plow snow on demand. I imagine the PTO pump would self-destruct if I tried to run it at -20. (Not that we see many of those days here)

    I questioned the manufacturer thoroughly before I did it, and the simple fact that I couldn't find ANY hydraulic fluid close to what the manual recommended kinda narrowed my choices.

    Stay warm my friend!

  4. #24
    Gold Member Herkypilot's Avatar
    Join Date
    Oct 2011
    Posts
    369
    Location
    Concord, NC
    Tractor
    Kubota MX5100 DT 4x4 & L3540 HST

    Default Re: Liberty Backhoe

    I used TS Universal trans/hydraulic fluid in mine. Different brand BH, but I can't think of why yours would call for such a high weight oil. Here is an excerpt from the manual for my BH showing recommended hyd ISO grades depending on your conditions. Credit to Woodmaxx for this data which is available to all from their website.
    -iso-hydr-grade-jpg

    Btw, mine oscillates a little when swung left/right too. I've found the best way to prevent that is to be easy on the transition of the lever instead of abruptly stopping the swing. I suppose that could be said for all movements of the hoe. Just takes getting use to.

    HP

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