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Bleeding air out of Western Uni mount

Discussion in 'Western Plows Discussion' started by FordF350Diesel, Nov 24, 2009.

  1. FordF350Diesel

    FordF350Diesel Junior Member
    from Ill
    Messages: 9

    my lift ram seems to have air in it and operating it up and down isnt getting it out how do i get the air out??
     
  2. twinman326

    twinman326 PlowSite.com Addict
    Messages: 1,683

    I would check the fluid.

    Fluid check:
    1. Perform this operation with the plow attached to
    the truck on a hard level surface.
    2. Lower the blade to the ground.
    3. Active control float function and manually collapse
    lift ram all the way. Turn control off.
    4. Remove the reservoir fill plug (behind the motor)
    and the fluid level plug (on the driver-side front
    corner of the reservoir).
    5. Fill the reservoir through the reservoir fill hole until the
    fluid runs out of the fluid level hole. Replace both
    plugs.

    If it was me, I would change the fluid and start from there.This is call "annual fluid change"
    As follow
    1. Follow steps 1–4 of Fluid Level Check from the
    previous section.
    2. Remove the drain plug located at the bottom of
    the left front corner of the reservoir. Drain fluid into
    drain pan or suitable container.
    3. Completely drain reservoir and replace drain plug.
    4. Remove the angle ram hoses from the fittings on
    the hydraulic unit and place in a drain pan or
    suitable container. (See Hose or Fitting
    Replacement on the next page.)
    5. Manually angle the blade fully in each direction to
    remove fluid from the angle rams. Do not allow the
    hose from the extending ram to take fluid back in.
    6. Reconnect the angle ram hoses to the proper
    fittings.
    CAUTION
    Change fluid at the beginning of each plowing
    season. Failure to do so could result in
    condensation buildup during non-snowplow
    season.
    CAUTION
    "Do not mix different types of hydraulic fluid.
    Some fluids are not compatible and may cause
    performance problems and product damage.

    7. Fill reservoir through fill hole until the fluid runs
    out of the fluid level hole with WESTERN® High
    Performance Hydraulic Fluid to -40°F (-40°C), or
    other fluid conforming to Military Specification
    MIL-H-5606A, such as Mobil Aero HFA or Shell
    AeroShell® Fluid 4.
    Replace both plugs.
    8. Activate control and angle blade fully to the left
    and right several times to remove air from angle
    rams.
    9. Turn off control and refill reservoir through
    reservoir fill hole until the fluid runs out of the fluid
    level hole. Replace both plugs.
    10. Activate control and raise and lower plow several
    times to remove air from lift ram. Activate control
    float function and manually collapse lift ram all the
    way after each lowering of the blade. Turn control
    off.
    11. Recheck fluid level with lift ram fully collapsed.

    The fluid I use is "Snow plow oil Hydraulic Fluid".I brought my from Auto Zone. Usually auto parts store have it, Or were I live, a place call "Tractor Supplies" also carried it. Here is the web link I gather this information.
    http://www.westernplows.com/pdf/64318.02_060105.pdf
    look at page #'s 24 &25