Damper Maintenance Checklist

  1. Observe damper motors and actuators through an operating cycle to check for defects or binding. All mounting bolts must be securely fastened.
  2. Linkages from actuators should be adjusted to insure blades of damper fully open or close within the stroke or travel of the actuator arm.
  3. Blades should be checked in closed position to be sure all close tightly. If necessary, adjustments should be made to damper linkage or linkages to close any partially open blades.
  4. Damaged blades should be replaced. Dirt, soot lint, etc. should be removed especially around operating parts.
  5. Check blade edge and side seals. Replace where necessary. Use DG-101 Blade seals when repairing.
  6. Check pins, straps, bushings (bearings) for wear, rust or corrosion. Replace as required.
  7. Lubricate all mechanisms and moving parts.
  8. Caulking, where used to make damper frames tight to structure, should be checked and repaired as needed.

Dampers and Automation

When installing automation systems, it’s important to make sure the existing dampers function properly when your computer sends a signal. Leaking or sticking dampers can ruin your system balance and energy efficiency.