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Meyer 47H pump problem

Discussion in 'Truck & Equipment Repair' started by mjs408, Dec 13, 2009.

  1. mjs408

    mjs408 Junior Member
    Messages: 6

    My lifting ram is stuck in the all the way up , pump/solenoids make noise for up/left/right but I cant get the ram to drop( including my 250 on a 4 foot cheater trying to help it along) What could it be? More snow coming tonight, would really like a functional plow. Also going to my normal job, so I dont have time alot of time
    Thanks in advance
     
  2. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Check for magnetism at the A valve while in the float position. If it has it, pull the A valve out and you'll likely find the internal spool is stuck. Note: if you pull the valve make sure the plows weight is supported (if its raised) and you have a drain pan under the pump. As well as plenty of shop towels and extra fluid as it will drop like a rock and spew fluid from the A valve port.

    If it doesn't have mag then you have a wiring issue or bad A coil.
     
  3. mjs408

    mjs408 Junior Member
    Messages: 6

    Ill try that, wish I could justify upgrading to a 57H pump
     
  4. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    The E57's are already obsolete and have been for a couple years now. If you upgraded you'd want the current E58H pump.

    Good luck with your tests.
     
  5. mjs408

    mjs408 Junior Member
    Messages: 6

    It has mag, so I just have to un-stuck the spool?
     
  6. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    With having magnetism you know your wiring and valve coil are good, so now you know it's the A valve itself for sure thats the issue.

    You can remove the valve and press in on the bottom to see if you can manually shift the internal spool thus freeing it up. Or if you need it to be dependable simply replace it.
     
  7. mjs408

    mjs408 Junior Member
    Messages: 6

    Thanks for the info, do you ever sleep:)? Now it time to go deal with about 2.5 inches of mid-weight snow.
     
  8. Acmemechanic

    Acmemechanic Senior Member
    Messages: 137

    Genetics !!!

    All Plow Operators Are Missing The Sleep Gene It Is a Scientifically Proven Fact:laughing::laughing::laughing:
     
  9. bcofdayton

    bcofdayton Member
    Messages: 55

    my meyer plow isn't moving up or down, left or right, this is a sporadic issue that has become increasingly more of a problem, any ideas there? BTW, when it is working while driving it will lower an inch every 10-15 mins as you drive.