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ezv right wing creeping, where do i start?

Discussion in 'Fisher Engineering Discussion' started by sparksrides, Jan 26, 2013.

  1. sparksrides

    sparksrides Senior Member
    Messages: 154

    well yesterday's storm was the third time out with my mm1 ezv and its starting to get annoying. the right wing won't hold its place and slowly creep's back, just wondering if some one can point me in the right direction to start looking.
     
  2. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    I believe there were issues with debris in the valve bodies left over from the maching process on some EZ-Vs. The debris would get caught in the seat of the valves preventing them from fully closing. I'm not intimately familar with the valves on those but it wouldn't take long looking at a schematic to figure out who the culprits might be. The pressure relief valve could also be weak.
     
  3. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,033

    First off, have you changed the fluid or done anything rams or lines lately?
     
  4. jday53

    jday53 Junior Member
    Messages: 8

    creeping

    I am having the same issue with my mm2 ezv is there a thread or something on how to clean the valve body? Is it hard? How long does it take?
     
  5. Antlerart06

    Antlerart06 PlowSite Veteran
    Messages: 3,437

    You are right My MPV had same problem mine was on lift would creep down it was a bad valve wouldnt close
     
  6. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,033

  7. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,033

    EZ-V® Snowplows Flush -

    1. Disconnect the cables to the electric motor.

    2. Uncouple the ram hoses from the control valve.
    Remove the rams.

    3. Disassemble the rams and inspect them for
    damage or contamination.

    4. Clean the rams. Wash the parts to be reused in a
    clean wash tank. Flush the hoses.

    5. Reassemble the rams. Reinstall the rams and
    reattach the hoses to the rams. Do not couple the
    hoses to the swivel fittings on the control valve.

    6. Remove the drain plug from the front, lower edge of
    the reservoir. Drain the fluid into a container.

    7. Remove the reservoir from the control valve.

    8. Inspect the reservoir and the suction filter located
    on the pump. Clean or replace the filter as required.

    9. Flush the reservoir with clean fluid.

    10. Reinstall the reservoir. Reinstall the drain plug.
    Reconnect the electrical cables to the motor.

    11. Disconnect the electrical harness from the control
    valve. Remove the six solenoid cartridges. Clean the
    solenoid cartridges in a clean wash tank filled with
    clean hydraulic fluid. Dry the solenoid cartridges
    with regulated, low-pressure, compressed air.

    12. Reinstall the solenoid cartridges into the control
    valve. Follow the instructions given on the inside of
    the solenoid cartridge covers. Reconnect the
    electrical harness to the control valve.

    13. Fill the reservoir.

    14. Couple the flushing hose to the swivel fitting for the
    driver-side angle ram/rod end hose (outside valve
    port on the passenger-side).

    15. Place the free end of the flushing hose in the used
    fluid container. Start the engine. For:

    9 Button Controls – Press the round L-WING button
    twice and hold it. . .
    Joystick Controls – Move the lever to the WING
    position between L and LOWER twice and hold it. . .

    6 Button Controls (MODE button in upper left corner
    of control face) – Place the cab control in the “Wing
    Mode” (mode light flashes). Push the L/SCP button
    once and hold it. . .
    until about a pint of fluid has been flushed through
    the flushing holes, or until no contaminants are
    seen. Shut off the engine.

    16. Reattach the driver-side angle ram/rod end hose to
    the swivel fitting at the valve.

    17. Fill the reservoir.

    18. Couple the flushing hose to the swivel fitting for the
    driver-side angle ram/blank end hose (second port
    from the passenger-side).

    19. Place the free end of the flushing hose in the used
    fluid container. Start the engine. For:

    9 Button Controls – Press the round L-WING button
    once and hold it. . .
    Joystick Controls – Move the lever to the WING
    position between L and LOWER once and hold it. . .

    6 Button Controls (MODE button in upper left corner
    of control face) – Place the cab control in the “Wing
    Mode” (mode light flashes). Push the L/SCP button
    twice and hold it. . .
    until about a pint of fluid has been flushed through
    the flushing holes, or until no contaminants are
    seen. Shut off the engine.

    20. Reattach the driver-side angle ram/blank end hose
    to the swivel fitting at the valve.

    21. Fill the reservoir.

    22. Couple the flushing hose to the swivel fitting for the
    passenger-side angle ram/rod end hose (second
    valve port from the driver-side).

    23. Place the free end of the flushing hose in the used
    fluid container. Start the engine. For:

    9 Button Controls – Press the round R-WING button
    twice and hold it. . .
    Joystick Controls – Move the lever to the WING
    position between R and LOWER twice and hold it. . .

    6 Button Controls (MODE button in upper left corner
    of control face) – Place the cab control in the “Wing
    Mode” (mode light flashes). Push the L/SCP button
    once and hold it. . .
    until about a pint of fluid has been flushed through
    the flushing holes, or until no contaminants are
    seen. Shut off the engine.

    24. Reattach the passenger-side angle ram/rod end
    hose to the swivel fitting at the valve.

    25. Fill the reservoir.

    26. Couple the flushing hose to the swivel fitting for the
    passenger-side angle ram/blank end hose (third port
    from the driver-side).

    27. Place the free end of the flushing hose in the used
    fluid container. Start the engine. For:

    9 Button Controls – Press the round R-WING button
    once and hold it. . .
    Joystick Controls – Move the lever to the WING
    position between L and LOWER once and hold it. . .

    6 Button Controls (MODE button in upper left corner
    of control face) – Place the cab control in the “Wing
    Mode” (mode light flashes). Push the L/SCP button
    twice and hold it. . .
    until about a pint of fluid has been flushed through
    the flushing holes, or until no contaminants are
    seen. Shut off the engine.

    28. Reattach the passenger-side angle ram/blank end
    hose to the swivel fitting at the valve.

    29. Fill the reservoir.

    30. Couple the flushing hose to the swivel fitting for the
    lift ram hose.

    31. Place the free end of the flushing hose in the used
    fluid container. Start the engine. Place the valve
    control in the “Raise” position. Flush about a pint of
    fluid through the flushing hose, or until no
    contaminants are seen. Place the valve control in
    the “Neutral” position. Shut off the engine.

    32. Fill the reservoir. Check for, and correct, hydraulic
    leaks. Check the system for proper operation.
    Properly dispose of the used hydraulic fluid.
     
  8. sparksrides

    sparksrides Senior Member
    Messages: 154

    in the off season i took the plow completely down and had every thing blasted and powder coated, also flushed all the rams and pump and replaced the filter. I didn't notice any contaminate in the fluid, I filled it up with fisher blue fluid. so I'm guessing I need to look into the valve body's but witch one do I start with? The plow works great except for the right wing creeping. I've checked out the mechanic's guide and that has given me a lot of incite, I was just thinking someone might know where to look first. thanks for the help guys...
     
  9. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,033

    You might have air in your system. Which wing is problematic...or is it both?
     
  10. sparksrides

    sparksrides Senior Member
    Messages: 154

    its the right side, I've had it together for a while now and cycled it a lot. how else would you get air out if that's the problem?