a. Open the two release levers as shown in the illustration. The controller moves out of the bay
approximately 0.6 cm (0.25 inch).
b. Pull the controller out of the bay.
c. Place the controller on a level surface.
5. Remove the cover (see “Removing and installing a cover” on page 91).
6. Place the controller on a flat surface.
7. Remove the failed battery unit from the controller.
a. Loosen the blue captive fastener until the battery can move in the direction that is indicated by
the arrow.
b. Slide the battery unit out of the controller in the direction that is indicated by the arrow.
c. Dispose of the battery as required by local ordinances or regulations. For more information, see
the IBM Systems Environmental Notices and User's Guide on the support DVD that shipped with
your unit.
8. Unpack the new battery unit. Set the new battery unit on a dry, level surface.
Save all packing materials in case you have to return the new battery unit.
9. Insert the new battery unit into the controller chassis:
Figure 73. Removing a controller
Battery connector
Captive fastener
Memory cache battery
Figure 74. Removing a battery unit from the controller
114 IBM System Storage DCS3700: Installation, User, and Maintenance Guide
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