Repair Procedure for One+ C Cell

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Safety

Think and act in a safe manner. Always disconnect power and use a lockout before you work on the E-coat system, or any of the related subsystems. Observe any confined space conditions. Use the appropriate safety equipment and clothing for the task. Please carefully read all the instructions listed below to familiarize yourself with the project before attempting to perform any of the work.

Required Materials

  • Kraft Paper or Newspaper
  • Scissors
  • Graduated Cylinder
  • Side Cutters
  • Saw Horses

    Required Tools

  • Membrane Shell Repair Kit (UFSc P/N 164039)

    General

    It may occasionally become necessary to repair the One + C-Cell due to parts or other foreign matter puncturing the Membrane. Keep in mind that the repair procedure is intended for smaller punctures, not large tears or a great amount of Membrane damage. If there are any questions about whether your damaged One + C-Cell can be repaired, please call UFSc at the number above.

    Procedure

    Turn off the system power and lockout the DC rectifier with your own lock.
Rinse the One + C-Cell and remove any paint solids and allow it to dry. (DO NOT USE PRESSURE WASHER)
    1. Carefully cut back the Outer Guard about 12 mm (1/2”) from the Membrane puncture. This is the outer guard that protects the membrane from foreign objects.
    2. Clean off all the dirt or dried paint solids from the uncovered area.
    3. Mix the two part epoxy (one part P/N Z07001 Hardener - two parts P/N Z070002 resin) and allow it to sit for 15 minutes.
    4. Pour a generous amount of epoxy on the punctured Membrane area and spread around with the wooden sticks (P/N Z121013). Pour a bead of epoxy 100 mm (4”) long line with the axis of the One + C-Cell about 50 mm (2”) from either side of the punctured area.
    5. Place the patch (PN 030011) over the beads of epoxy.
    6. Wind the PN 100001 around the One + C-Cell. Pour more epoxy on the patch covering the punctured areas. This will hold PN 030011 in place. This wrap will stick to the patch once it is cured. Trim access off.
    7. Pour another bead of epoxy on the inside edge of the patch and attach it to the One + C-Cell. Use your hands to gently work the epoxy through all layers of the patch, making sure the patch is firmly attached to the One + C-Cell.
    8. Begin applying the white PVC tape (P/N Z110005) to the center of the patch. Continue to wrap the tape tightly and remove all air bubbles. Repeat this step with the other side of the patch.
    9. Place the One + C-Cell in a temperature controlled room (75° - 80°F). Place the One + C-Cell on saw horses so that the punctured area faces the floor. Allow the epoxy to cure for 24 hours.
    10. After 24 hours remove the tape and apply the wire ties (P/N 245002) to the patched areas for added support ( Use outer guard pieces shipped with repair kit.
    11. Stand the One + C-Cell up on end in a bucket and fill to the overflow nozzle with D.I. water. Wait for 30 minutes to allow the membrane to absorb the water. Monitor the leak rate. If the ME Shell is leaking less than 200 ml/hour, then the One + C-Cell is acceptable for use in an e-coat tank.

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    BULLETIN 990128

 

 

 

 

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