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Donaldson Company, Inc.
Solenoid Valve Repair
A damaged solenoid valve can be serviced by repairing or replacing the individual solenoids located within the solenoid enclosure.
To repair or replace an individual solenoid:
1.
many indicate a damaged cleaning valve).
2. Turn off collector and Lock-Out all energy sources.
3. Close the compressed air shut off valve (owner supplied) and bleed the pressure from the DFEP manifold.
4.
5. Locate and mark each tube between the diaphragm valves and the solenoid enclosure to ensure they can be
reconnected in their original locations.
6. Disconnect all tubes from the solenoid enclosure.
7. Remove the bolts attaching the solenoid enclosure to the manifold.
8. On the underside of the solenoid enclosure, unscrew the two screws securing the solenoid cover until the cover
comes loose.
9. Remove the solenoid cover.
10. Replace or repair the damaged solenoid(s).
11. Re-attach the solenoid cover.
12. Reconnect the solenoid enclosure to the manifold.
13. Reconnect all tubing to original positions on the solenoid enclosure.
14.
15. Open the compressed air shut-off valve and re-pressurize the manifold.
16. Return power to the collector and resume DFEP operation.
A damaged diaphragm valve can be serviced, repaired or replaced. To repair or replace a damaged valve:
1.
may indicate a damaged cleaning valve).
2. Turn off the collector and Lock-Out all energy sources being certain
to close the compressed air shut off valve (owner supplied) and bleed
pressure from the DFEP manifold.
3. Remove the rear access panel of the DFEP. For collectors with
4. Locate and repair or replace the damaged valve.
5.
6. Open the compressed air shut-off valve and re-pressurize the
manifold.
7. Resume DFEP operation.
Diaphragm Valve Repair
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