IBM DS4700 manual Front cage frame screw locations

Attention: Do not stack E-DDM CRUs on top of each other. Protect the E-DDM CRUs from vibrations or sudden shocks.

10.Use a #1 Phillips screwdriver to loosen the four front cage frame screws on the midplane, as shown in Figure 118.

Front cage frame screws

810midpl

Front cage frame screws

Figure 118. Front cage frame screw locations

11.On the back of the DS4700 Express, remove the four Phillips screws (two screws on each side) that hold the sides of the DS4700 Express chassis to the sides of the rails.

12.On the front of the DS4700 Express, remove the four M5 screws (two screws on each side) on the DS4700 Express chassis that hold the DS4700 Express to the rails.

Attention: The unit must be removed from the rack and placed on a level ESD protected surface before servicing it.

13.Pull the chassis outward from the front of the rack and remove from the rack. Place it on a level surface. Look for a row of three Phillips screws on top of the chassis and a row of four Phillips screws on the bottom of the chassis, as shown in Figure 119 on page 181. Remove the seven Phillips screws using the #1 Phillips screwdriver. Save these screws.

180IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide