Replacing The Components; Replacing The Power Supply-Fans - IBM DS4800 User, Installation And Maintenance Manual

3. At the front and the rear of the rack cabinet, use the 5/16 (8 mm) hex nut driver
4. Continue with "Replacing the components."

Replacing the components

Complete this procedure to replace the components in the storage subsystem.
1. Replace the power supply-fans. Figure 21 shows the locations and correct
Levers in
released
position
Figure 21. Replacing the power supply-fans
2. Replace the interconnect-battery unit. Figure 22 on page 44 shows the location
b. Using the 5/16 (8 mm) hex nut driver, insert one M5 screw into the hole on
each flange, and tighten the screws completely to secure the front of the
storage subsystem to the cabinet.
to finish tightening the other three M5 screws for each rail.
orientation of the power supply-fans and the power supply-fan levers. The
power supply-fans are keyed to always fit into the enclosure in the proper
orientation. When the component is oriented correctly, a relief along one edge of
each component aligns with a ledge in the enclosure. Before installing the
component, turn the component so that the indicator LEDs are near the center
of the storage subsystem.
Power supply-fan
of the interconnect-battery unit and the interconnect-battery unit levers.
The interconnect-battery unit is keyed to always fit into the enclosure in the
proper orientation. A large pin located on the back of the component prevents
the component from being installed incorrectly. Before installing the component,
turn the component so that the LEDs are near the top of the component.
Indicator LEDs
Chapter 2. Installing the storage subsystem
43