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ATF of Hydralic oil??

Discussion in 'Fisher Engineering Discussion' started by Bachand, Feb 17, 2007.

  1. Bachand

    Bachand Junior Member
    Messages: 17

    I have been fighting a "seems like freezing problem" and when I added fluid I have been using regular Hydralic oil. After reading a litttle bit it seems I should be using ATF?

    Is this true?
  2. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 9,883

    I would flush the system(rams also) and use a quality Hydraulic fluid.
    It's worth the extra $5 bucks.

    Some will tell you to use atf because you can get it any where.
    You can add atf or 5W in a pinch it will not hurt anything.
    When you pick up your hydraulic fluid pick up some extra.
    Some times it is a long drive to a open gas station to get some fluid.

    I carry a extra gal with me.

    Recommend oils and there operating temps.

    Univis j26... -60 to +155
    Mil-5606.... -60 to +80
    SAE 5W... -20 to +100
    ISO VG22.. -0 to +125
    Sae 10W.. -0 to +150
    Atf ............. -0 to +150
    Last edited: Feb 17, 2007
  3. Bachand

    Bachand Junior Member
    Messages: 17

    Do you have a link ato the proper flushing procedures?
  4. ThisIsMe

    ThisIsMe Senior Member
    from Mass
    Messages: 745

    In Mass you can get hydro fluid at AutoZone (at least out in Western Mass you can). They actually have the best prices on the stuff, even better then Walmart.
  5. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 9,883

    Not right off hand. It has been posted on here numerous times.

    I start by angeling the plow all the way to one side and with it on the ground.
    Next drain the reservoir and clean the screen.
    If the reservoir can be removed do so and clean it out.
    fill reservoir.

    Loosen the hose on the retracted ram. Put a drain pan under it and a rag over the fitting.
    Now try to swing the plow useing the controler, just give it a little shot all you want to do is remove any old fluid from the hose.
    Tighten the hose back up.

    Now, on the ram that is extend.
    Put the drain pan under it and remove the hose from the ram.
    secure a rag over the opening fluid is going to squirt out.
    Swing the plow so this ram is retracted.
    top off the reservoir.
    reattach the hose so it is loose and give it a shot of fluid to clean out the hose.
    tighten the fitting.
    top off the reservoir.

    cycle the plow a few times to work out any air that may have gotten in the system.

    recheck the fluid level.