Badger Meter Disc Meter - Manual (Page 10)

Electronic Calibration
If electronic scaling is the accessory medium for calibration, see the accessory technical brief for instructions .
Servicing
The following instructions are for removal, inspection and installation of meter parts and assemblies . Refer to applicable
illustrated parts list for part numbers of components and ordering information . Accessory service and repair procedures are
provided in literature specific to that device .
Meter Disassembly Method
These procedures are for disassembly of the meter:
1 . Shut off the fluid flow to meter . Place a container under the meter and relieve fluid pressure in the meter by uniformly
loosening the bolts (bronze meter) or the retaining ring (plastic meter) . Fluid will run out into the container .
2 . Remove the bolts or the retaining ring while holding the housing bottom in place . Remove the housing bottom . The
chamber assembly may drop from the housing as the bottom is removed .
3 . If the chamber assembly is out, set it aside . If not, first remove the chamber strap and then remove the
chamber assembly .
4 . Remove the meter screen . Inspect the screen for dirt and corrosion . Clean or replace the screen as necessary .
5 . Inspect the chamber assembly:
a . Check the disc in the chamber assembly for warpage, cracks or wear . A severely worn disc can cause
over-delivery of the fluid being metered .
b . Check the thrust roller and thrust roller insert for excessive wear .
After inspection, clean or replace the chamber assembly as necessary . If the chamber is worn or corroded, replace the entire
chamber and disc assembly .
6 . Re-install the housing chamber assembly, screen, chamber strap and bottom as follows:
a . Assemble the screen in the proper location .
b . Position the chamber assembly in the proper orientation . Add the chamber strap .
c . Position the housing bottom with the correct seal . (Replacement of seal is always recommended .)
d . Assemble and tighten the bolts or retaining ring .
Alternative Disassembly Method for Service
Loosen all the connection pieces slightly . Turn the meter upside-down, putting gravity on your side . This will help eliminate
the possibility of the chamber assembly and or the screen component dropping during disassembly and causing damage .
Recalibration
After repairing or replacing a meter component or assembly, perform the calibration check and adjustment procedure to
ensure that the meter is properly calibrated and will operate in accordance with published specifications .
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Due to continuous research, product improvements and enhancements, Badger Meter reserves the right to change product or system specifications without notice, except to the extent an outstanding
contractual obligation exists. © 2013 Badger Meter, Inc. All rights reserved.
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