How To Install The Chemicalve Metering Valve Service Kit

How To Install Various Components On The MDT Harvey Chemiclave Series








Chemiclave Metering Valve Service Kit (MDS057)
Installation Instructions

  1. Remove the valve from the machine
  2. Disassemble the valve and take caution not to scratch the inside of the outer body with the roll pin that holds the assembly together. Carefully remove the used o-rings and discard.

    CAUTION: Do not remove the roll pin from the front of the valve

  3. Clean the stem (o-ring) section of the valve making sure to remove all oxidation and old lubricant
  4. Clean the outer body of the valve using caution not to scratch the inside surface where the o-rings seat against.

    Suggestion: A non-abrasive cloth with a non-detergent degreaser (such as Simple Green™) in warm water works very well in this application.

  5. After the valve has been cleaned, replace the o-rings.

    NOTE: The white o-ring included in this kit is only for valves that require it (see illustration below). If the valve you are servicing does not have a white o-ring already installed, then do not use the enclosed white o-ring.



    Click Here For A Larger Picture


  6. Lubricate the o-rings well in this application. Using a Q-Tip™ remove any excess lubricant that might have found its way into the top fill/dump hole in the stem. Lubricant repels liquids and might hinder the filling cycle.
  7. Reassemble the valve. Apply a small amount of lubricant to the inside of the outer body. Carefully press the stem with new o-rings through the outer body and take caution not to scratch the inside of the outer body with the roll pin that holds the assembly together. Rotate the stem inside the valve body a few turns to fully lubricate the o-rings and ensure they are still in place.
  8. Replace spring assembly. Once again rotate the valve to make sure everything is installed properly
  9. Reinstall the valve and Splash Shield
  10. Run the machine for a couple of cycles with the machine cover off. After these test cycles, replace the machine cover and run another test cycle.

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