Liquid Controls LectroCount LCR 600 Installation-Parts page 30

All internal pressure must be relieved to zero pressure before disassembly or inspection of the
strainer, vapor eliminator, any valves in the system, the packing gland, and the front or rear covers.
Serious injury or death from fire or explosion could result in performing maintenance on an
improperly depressurized and evacuated system.
Relieving Internal Pressure Procedure for LPG and NH
Follow these steps:
1. Close the belly valve of the supply tank.
2. Close the valve on the vapor return line.
3. Close the manual valve in the supply line on the inlet side of the meter. If no manual valve exists
on the inlet side, consult the truck manufacturer for procedures to depressurize the system.
4. Slowly open the valve/nozzle at the end of the supply line.
5. After product has bled off, close the valve/nozzle at the end of the supply line.
6. Slowly crack the fitting on top of the differential valve to relieve product pressure in the system.
Product will drain from the meter system.
WARNING
Relieving Internal Pressure
Meters
3
Installation