Figure 16-11 Fan Tray Power Cable - Sun Microsystems Sun Fire E25K Service Manual

1. Power off the system.
See Section 16.2.1, "Powering Off the System for Cable Replacement" on page
2. Remove the system board modules and their associated carrier plate assemblies
from the front and rear of the system.
3. Remove the twenty-two (22) M4x30 panhead screws retaining the air plenum
cover, and remove both the plenum cover and the honeycomb EMI filter panel.
4. Reach inside the system, below the fan trays, and release the four (4) (two per
connector) male jackscrews holding the 48 VDC power cable assemblies to the
two (2) fan tray power cable connectors attached to the connector bracket
(
FIGURE 16-11
FIGURE 16-11
5. Using a 3/16 inch nut driver, carefully remove the four (4) female jack screws (two
(2) per connector) holding the fan tray cable connectors to the horizontal
connector bracket on the front and rear of the system.
6. Remove the sixteen (16) M4x6 panhead screws (eight (8) per cover) holding the
vertical cable wireway covers on the front and rear of the system.
7. Remove the two (2) upper cable clamps (each with two (2) locknuts (one (1) per
side) from the front and rear of the system.
8. Remove the thirty-eight (38) (nineteen (19) per side) M4x6 panhead screws
retaining the black plastic cable cover attached to the center bulkhead on the front
and rear of the system.
16-14 Sun Fire E25K/E20K Systems Service Manual • April 2004
).
Fan tray power cables
Fan Tray Power Cable
16-8.
Cables not shown
for clarity