Honeywell RABO Instruction Manual page 15

probe and leading threads to ensure no pipe dope
enters the metering chamber.
7. Screw the thermowell into the meter and tighten to
ELSTER RABO Rotary Gas Meter
®
18 ft-lbs.
8. Re-pressurize the meter as instructed in Start-up/
Commissioning (see section 6).
15. Troubleshooting
16. Troubleshooting
Problem
Excessive vibration
High differential pressure
Low registration
Non-registration
15 Honeywell
Probable Cause
Build-up of foreign material on impellers
Misalignment
Worn bearings
Worn timing gears
Impellers contacting body
Heavyweight or too much oil
Dirt deposits on impellers
Impellers out of time
Impellers contacting body
Upstream or bypass leak
Broken or binding index odometer
Obstruction in meter
Figure 21. Auxilary equipment mounted
Suggested Action
Clean by flushing, or replace worn parts
Level meter in piping
Replace bearings
Replace timing gears
Rotate manually to verify impellers spin freely
Check oil level and condition
Remove dirt by flushing
Retime impellers
Rotate manually to verify impellers spin freely
Check all valves for leakage
Replace odometer
Remove meter, remove obstructions, flush meter