8.1 Removing System and Expansion Cabinet Panels

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Note - Power must be turned off before removing panels. For powering off and on procedures, refer to Chapter 7, "Powering Off and On."

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Cabinet outer panels are shown in Figure 8-1 through Figure 8-4.

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Note - The front panels on all cabinets remove in the same way with the following exception: the hinged front panel is absent on the expansion cabinet or SPARCcluster 1000 High Availability cabinet. Instead, there is a vented front panel.

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8.1.1 Opening the Hinged Door (SPARCcluster 2000 High Availability)

* Grasp the door at the upper-right corner and pull towards you firmly.

See Figure 8-1. The door is secured by clips and ball-studs at the side opposite of the hinge. The door is released and swings open if pulled firmly.

8.1.2 Vented Front Panels (SPARCcluster 2000 High Availability or SPARCcluster 1000 High Availability)

The three vented front panels remove in the same manner. They are retained by chassis-mounted ball studs that mate with catches on the back side of the panel.

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Caution - Do not remove the vented front panels by twisting off. Such action may break the panel or fasteners. Always support the panels during removal and replacement.

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To remove the panels:

1. Grasp the panel under the vent on one side and pull out far enough to just disengage the ball studs.

   See Figure 8-2.

2. Repeat this procedure on the other side of the vent to disengage and remove the panel. Set the panel aside.

To replace a panel:

1. Place the panel against the chassis with ball studs aligned with the catches on the panel.

2. Tap or press both sides of the panel into place.

8.1.3 Rear Screen Panel

To remove the rear screen panel:

1. Remove the two #10 Phillips screws securing the panel to the frame.

   See Figure 8-3.

2. Tilt the panel top out and lift it free of the chassis. Set the panel aside.

   There is a flange on the bottom of the rear screen.

Figure 8-3

To replace the rear screen panel:

1. Insert the panel so the bottom flange engages behind the top of the kick panel.

2. Tilt the panel flush against the frame and secure using Phillips screws.

8.1.4 Kick Panel

To remove the kick panel:

* Loosen the two captive screws. See Figure 8-4.

To replace the kick panel:

* Arrange cables (if applicable) neatly behind the kick panel, then fasten the two captive screws to secure the panel in place.

Figure 8-4

8.1.5 Stabilizer Bar

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Warning - Always extend the stabilizer bar before pulling the disk drive trays out for servicing.

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The cabinet has six leveling pads. Four pads on the cabinet frame are lowered to touch the floor and prevent the cabinet from rocking. Two leveling pads are part of the stabilizer bar and should not touch the floor.

1. Grasp the stabilizer bar under the front edge and pull it out to its fully extended position.

   See Figure 8-5.

2. Screw the two stabilizer bar leveling pads down until they are 3 to 6 mm (1/8 to 1/4 inch) above the floor.

   Ensure both pads are at equal heights. This clearance allows the stabilizer bar to slide in and out easily, yet catch the cabinet if it should begin to tilt.

Figure 8-5

8.2 Leveling the Cabinets

This procedure requires that the screen panel and kick panel be removed. Refer to Section 8.1.3, "Rear Screen Panel," and Section 8.1.4, "Kick Panel."

1. Remove the leveling wrench, located inside the cabinet:

   Locate the leveling wrench in the upper part of the rack. Unlock the tie wrap and remove the wrench. Press the tie wrap tabs together to loosen the strap.

2. Remove the kick panel.

   The kick panel is held by two captive screws.

3. Use the wrench to lower the four main leveling pads (not the pads on the stabilizer bar).

   See Figure 8-6. The four main leveling pads are located near the corners of the cabinet. Lower the pads until all four wheels are off the floor.

Figure 8-6

4. Adjust the two pads on the stabilizer bar:

   a. Fully extend the stabilizer bar.

   See Figure 8-7.

   b. Screw the pads down until they almost touch the floor.

   Leave approximately 6 mm (1/4 inch) clearance between the pads and floor. This clearance will prevent tilting of the cabinet, and yet allow you to easily extend or retract the stabilizer bar.

   c. Slide the stabilizer bar back into the cabinet.

5. Restore the wrench to its storage place in the rack.

8.3 Side Panel Removal

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Note - Remove the side panels to afford access to the power distribution unit.

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To remove the side panel:

1. Loosen two slot-head captive screws near the panel base.

   See Figure 8-8.

2. Tilt the panel bottom out.

3. Lift the panel up until it is free of the tabs at the top of the chassis.

   Set the panel aside.

To replace a side panel:

1. Place the panel against the cabinet so the notches on the panel inside align with tabs at the chassis top.

2. Lower the panel into place and allow it to hang flush against the chassis.

3. Tighten the two captive screws at the panel base.