
CHAPTER 7
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SERVICE AND REPAIR
70
MultiLoad II/ RCU II Explosion Proof Lite (EXL) Installation Guide - Part # 6070
Removal:
1. Disconnect all field wiring from the I/O board.
2. Disconnect all Serial Communications from the Power Supply/COM board.
3. Disconnect Main Power from the Power Supply/COM board.
4. Disconnect the flat display cable (after releasing the cam lock) and display power cable.
5. Disconnect the W&M Access/Program Mode switch cable from the CPU board.
6. Remove the four chassis mounting screws (not the mounting screws for the I/O board or Power
Supply / COM board).
7. Carefully remove the CPU chassis from inside the base by removing the CPU board side of the
chassis first.
Installation:
1. Carefully insert the CPU chassis back into the enclosure.
2. Install the chassis mounding screws.
3. Connect the W&M Access/Program Mode switch cable to the CPU board.
4. Reconnect the display power cable and the flat display cable (remember to secure the cam
lock).
5. Connect the Main Power to the Power Supply/COM board.
6. Connect all Serial Communications to the Power Supply/COM board.
7. Connect all field wiring to the I/O board.