Dresser Model 10C25 Series K Installation, Operation, and Maintenance Manual
© 2018 Natural Gas Solutions North America, LLC
Page 36 of 74
12
Meter Maintenance
Perform the following steps as needed to help keep your meter functioning properly.
12.1
Meter Lubrication
No lubrication is required.
This meter incorporates permanently lubricated bearings and gears.
12.2
Meter Leveling
Because the meter is supported entirely by the gas pipeline, movement of the piping due to accident,
settling of the ground, or other causes can impede meter operation and accuracy.
Ensure the meter remains level within 1/16 inch per foot (5 mm/m) in any direction, side to side, and
front to back.
12.3
Meter and Digital Index Cleaning
Clean the exterior of the meter and the digital index housing with isopropyl alcohol.
If there is any evidence of dirt or dust in the meter body, perform the following steps:
1.
Windmill the impellers (at a speed less than maximum capacity) by injecting controlled compressed
air from a nozzle into the meter inlet.
2.
While the impellers are turning, flush approximately five (5) ounces (150 ml) of an approved safe
solvent through the meter.
3.
Use compressed air to completely dry the meter.
12.4
Digital Index Replacement
Perform the steps in this section when replacing the digital index and when removing or installing the
digital index to change the orientation (vertical or horizontal) of the meter. Also perform these steps as
part of the process for removing or replacing the temperature probe, accessing the AMR cable, and other
maintenance tasks where the digital index needs to be removed to provide access.
12.4.1
Recommended Tools
The following tools are recommended for replacing the digital index:
•
Adjustable torque wrench/driver
•
5/32 inch Allen wrench