The paddle wheel, pin, and O-rings are normal wear items that typically provide many years of service in clean water. Silt, grit, chemicals, and high flow rates can shorten their service life.

CAUTION: Stop the flow and completely depressurize the pipe before removing the meter.

Replacing the Paddle Wheel and Pin:

The armature has a smaller hole on one side and a larger hole on the other. Insert a 1/16″ pin punch, or a blunt-ended tool of similar diameter, into the smaller hole. Gently push the pin through the armature and out through the larger hole. Once enough of the pin is exposed, pull it out with pliers. Use pliers only on the exposed ends. Do not grip, scratch, or deform the center section of the pin; damage to this surface may affect meter performance.

Position the new paddle wheel in the armature and align the holes. Insert the new pin through the larger hole, guide it through the paddle wheel, and gently push it into the smaller hole until seated. Check that the paddle wheel spins freely.

To replace the O-ring, remove the old O-ring and slide the new O-ring into place.

The same paddle wheel replacement kits fit both Pipe Mounted Display (PMD) and Detached Display (DD) meters.