Note:
If the pipe pressure is not relieved yet, water will spray out when the
retaining nut is two turns from complete removal.
When re-installing, use fingers only and check for leaks before installing the
bonnet.
5. Place the register assembly in a safe place.
6. Remove the bonnet retaining ring (57 or 7) by removing the four allen head
countersink screws (3).
7. Remove the four allen head screws (14) from the measuring insert (13).
8. Pull the measuring insert (13) away from the chamber cover (11A).
9. Twist the inlet flow straightener balance plate (17) counter-clockwise, then pull it
straight out of the measuring insert housing.
Note: Take care to slowly separate the two housings or the rotor will fall out
of the measuring insert and will be damaged.
Do not remove the chamber seal gasket (12). It is factory glued in place for
ease of chamber installation. If a replacement gasket is required, you must
use a waterproof glue to attach it to the chamber.
10. Remove the rotor (16) from the measuring insert by slowly pulling it out of the
housing.
11. Inspect and replace any damaged parts.
12. For re-assembly, reverse this procedure.
5 Measuring chamber | 20
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