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Bleeding out the air ??

Discussion in 'Western Plows Discussion' started by 2dogs2, Sep 1, 2007.

  1. 2dogs2

    2dogs2 Member
    Messages: 81

    Is there some way of bleeding out the air from my Western Mark IIIa without losing fluid? The only way I've found to remove air is to open the filling nut, and out comes fluid with the air bubble. Does anyone make a one way valve for this system ?
  2. wild bill

    wild bill PlowSite.com Addict
    Messages: 1,239


    you might try a bleeder valve like they use on a meyer e 47, but you have to be careful some times they let moisture in.find out why you are getting air in,pitted cylinders.lose worn out packings?
  3. #1 plowtech

    #1 plowtech Senior Member
    Messages: 253

    Do not remove the fill plug until you leave it sit overnight. let the air bubbles settle ,and remove fill plug slowly to let any air escape w/o it blowing all over. Goodluck, Plowtech:waving:
  4. wild bill

    wild bill PlowSite.com Addict
    Messages: 1,239

    bubble bubble boil and trouble

    plow tech has a point , they have been running them that way for years.
  5. nealybird

    nealybird Senior Member
    Messages: 700

    After you fill it, just angle back and forth with the blade on the ground. The air will work it's way out. No need to bleed anything.
    The v-plows are the ones that you have to make sure you go through all the functions (left wing, right wing, angle both ways, scoop and vee) several times before raising the blade to prevent the fluid foaming up. And if it does, you do need to let it sit overnight and try again.
  6. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 7,921

    You bleed out the air the same way for a "V" plow as you do any other plow.
    side to side or scoop it's all the same.

    You can get about 75% of the air out moving the plow side to side.
    You can also turn your fluid in to foam that will take "days" to settle.

    have your plow all of the way to one side.
    (Put a pan under the ram to catch the fluid).

    On the ram that is retracted "in" loosen the fitting on the ram.
    you can do this alone but it is eraser to have someone help you.
    next start to swing the plow to the other side.
    air and fluid will come out.
    tighten the fitting.
    top off the fluid.
    repeat for the other side.
    top off the fluid

    Then loosen the fittings for the lift ram and run the plow until the air is out and you have fluid.
    top off the fluid.
    kind of like bleeding the brakes on your truck.

    If air is trapped in the ram or hose letting it sit will do nothing, even working it back and forth will not get all of the air out.

    You may think you did because it will work fine, but the air will compress and cause your fluid to foam and the ram will feel spongy(soft).
    Last edited: Sep 11, 2007