7-48 Removal and Replacement
Rear Door Hinge
Rear Door Hinge Removal:
1. Remove the rear door (refer to rear door removal).
2. Remove the two mounting screws from the cabinet column (on the upper hinge, also remove the two
mounting screws in the side panel), and lift the door hinge away.
Rear Door Hinge Replacement:
1. Align door hinge with the pressed nuts in the rear cabinet column.
2. Insert the two mounting screws through the hinge into the column (on the upper hinge insert the two
mounting screws into the side panel). Tighten the screws.
Rail Assembly
This procedure is also used to remove or replace a rail clamp.
Rail Removal:
1. Remove the component mounted on the rail to be replaced. Removing the component could involve a
lot of cable handling. Be sure to tag the removed cables for replacement later.
2. Remove the two rail mounting screws.
3. Lift the rail out of the rail support notch in the cabinet column.
4. If the rail clamp needs to be removed, remove the clamp screw, and slide the clamp out of the rail
grove.
Rail Replacement:
1. Slide the rail clamp into the rail.
2. Insert the rail tab into the appropriate inside cabinet column support notch.
3. Insert the two mounting screws through the rail into the slip nuts on the column. Tighten the screws.
4. Re-install the component that was previously removed.
5. Slide the rail clamp up to the rear of the component and insert the clamp screw. Tighten the screw.
Fan Assembly
Refer to Figure 7-36 while performing these procedures.
Fan Assembly Removal:
1. Turn off the cabinet power. Refer to the power off procedures in Chapter 5.
2. Open the rear door.
3. disconnect the fan power cord from the PDU.
4. Remove the one mounting screw at the top rear cabinet frame bar.
5. Grasp the fan assembly from the bottom and pull toward the rear of the cabinet.
6. The fan assembly should release from the cabinet, and can be lowered out of the cabinet.
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