4.5 - GREEN MACHINE
™
- North America - Installation, Operation, Maintenance, & Troubleshooting Manual
Chapter 9: Replacement Procedures
Page 156
9.2.2
Installing the New PLC
1. Install the new PLC in the front door of the VST Control Panel in the same
orientation the old PLC was removed.
2. Install the two hold-down clips on the side of the PLC and lightly tighten.
Do not over tighten.
3. Reinstall the two terminal blocks on the PLC. Make sure they are fully inserted into
the PLC.
4. Close the VST Control Panel door.
5. After all the work is complete, remove the lock(s) and tags from the lockout &
tagout.
6. Turn ON power to the VST Control Panel. The GREEN MACHINE
is now operational
and will operate if the UST pressure is greater or equal to 0.20 IWC.
7. Check the VST Control Panel to make sure the Main Screen is showing.
Figure 9-5: Removing the PLC Connectors
