Power Shelf I 2 C Or Topcap Cable Replacement - Sun Microsystems Sun Fire E25K Service Manual

16.2.2.2 Installing the 48 VDC Power Cable
1. Install the new cable.
2. Secure the four (4 per cable) jackscrews holding the 48 VDC cable assemblies to
both the top of the power shelf assembly and the cable retaining bracket.
3. Install the honeycomb EMI Filter panel and air plenum cover and secure with the
twenty-two (22) M4x30 panhead screws.
4. Power on the system.
See Section 16.3, "Powering On the System" on page
16.2.3 Power Shelf I
Caution – Be sure you are properly grounded before you begin the hardware
removal and installation. There are four ground points on the system cabinet, two at
the front top left and top right, and two at the rear top left and top right.
16.2.3.1 Removing the Power Shelf I
1. Power off the system.
See Section 16.2.1, "Powering Off the System for Cable Replacement" on page
2. 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.
3. Reach inside the system, below the fan trays, and release the four (4 per cable)
male jackscrews holding the power shelf I
the power shelf assembly and the cable retaining bracket.
4. Remove the cable.
2
C or TopCap Cable Replacement
2
C or TopCap Cable
Chapter 16 Cable Replacement Procedures
16-20.
2
C cable assemblies to both the top of
16-8.
16-11