4.5 - GREEN MACHINE
™
- North America - Installation, Operation, Maintenance, & Troubleshooting Manual
Chapter 9: Replacement Procedures
Page 162
9.4.2
Installing the Pressure Sensor
•
See Figure 9-10.
1. Install and tighten the bushing on the top of the Pressure Sensor.
2. Install the new Pressure Sensor. Use gasoline resistant PTFE tape on the pipe
threads.
CAUTION: Be sure to tighten the Pressure Sensor using the nut on the bottom of
the sensor during the installation.
3. Install the screw and tighten the clamp screw on the bushing.
4. Place the Pressure Sensor cable inside the Liquidtight conduit then tighten the
Liquidtight conduit on the Pressure Sensor bushing and the Internal Junction Box.
5. Connect the Pressure Sensor wires to the terminal blocks inside the Internal
Junction Box.
See Figure 9-11
.
6. Install the Internal Junction Box cover.
7. Remove the lock(s) and tags from the lockout & tagout.
8. Turn the Maintenance Switch OFF at the VST Control Panel so the GREEN MACHINE
cannot operate.
9. Turn power ON to the VST Control Panel.
10. Verify Pressure Sensor Alarm is not active and the pressure reading on the PLC is
approximately zero IWC.
11. Open the 3-way ball valve below the Pressure Sensor. (The handle is vertical.)
12. Put the cover on the GREEN MACHINE and lock the hasps.
13. Turn the Maintenance Switch ON so the GREEN MACHINE will operate when turned
ON.
14. The GREEN MACHINE is now operational.
