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Testing Valves

Discussion in 'Meyer / Diamond Products Discussion' started by odd1or2even, Dec 16, 2008.

  1. odd1or2even

    odd1or2even Senior Member
    Messages: 117

    Is there anyway to test valves and coils for the meyers pumps? I have some spares and was wondering how you can test the valves and coils without taking off piece by piece from a working pump and see which works. Thanks

  2. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    You can check the coils simply by powering them (along with ground too of course) and checking to see if they produce magnetism with a wrench or screwdriver.

    But to check the valves to see if they're actually moving when the coils apply magnetism you'll need to pull them out of the valve body and physically watch them for movement.
  3. KWest

    KWest Junior Member
    from MA
    Messages: 9

    Where should you be able to see the movement on the different valves?
  4. archer39

    archer39 Member
    from PA
    Messages: 62

    x2, i don't want to drop money to replace a good valve if i don't have to
  5. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Very easy to do.

    1) Pull the coil & valve from he pump.

    2) Re-install the coil back onto the valve.

    3) Using a battery, ground the coil to the neg post on the battery while touching the coil lead to the positive post of the battery.

    4) You should physically feel the valve click open. And if you look closely directly into the end of the valve you should see the internal spool move inward into the valve. They don't move much so you have to watch closely, especially on the A valves.

    If it doesn't move then either the coil is bad or the spool is stuck. You can push in on the spool a few times with a small screwdriver to see if it frees up. If you can move it by hand but the coil won't, then likely the coil is bad.
  6. archer39

    archer39 Member
    from PA
    Messages: 62

    thank you very much