Top Cover Removal (Model 6E4)To remove the top cover, do the following:1. Remove the bezel door as described in “Bezel Door Removal” on page 441.2. Remove the front bezel as described in “Front Bezel Removal (Model 6E4)” on page 443.3. Remove the top cap as described in “Top Cap Removal (Model 6E4)” on page 432.4. Remove the operator panel as described in “Operator Panel Removal” on page 484.5. Remove the two retaining screws that secure the operator-panel EMC bracket to the operator-panelbracket.6. Remove the four retaining screws that secure the operator-panel bracket to the top cover.7. Remove the four retaining screws that secure the top cover to the system chassis.8. Remove the front screw that secures the top cover to the right panel assembly. This screw is locatedon the front inside edge of the system, just below the top cover.9. Remove the back cover as described in “Back Cover Removal (Model 6E4)” on page 437.10. From the back of the system, remove the rear screw that secures the top cover to the right panelassembly. This screw is located on the rear inside edge of the system, just below the top cover.11. From the back of the system, remove the two retaining screws that secure the top cover to thesystem top-cover rear bracket.12. Lift the top cover up and off the system chassis.1 Top Cap 6 Model 6E42 Operator Panel EMC Bracket 7 Bezel Door3 Operator Panel 8 Bezel4 Operator Panel Bracket 9 Rear Top Cover Mounting Bracket5 Top Cover 10 Rear CoverChapter 9. Removal and Replacement Procedures 433
