Sun Microsystems Sun Fire E25K Service Manual page 60

3. Label and remove both AC power cords from the front panel of the power supply.
Caution – The power supply unit weighs 43.0 lb (19.5 kg). Use proper heavy-lifting
procedures when removing this unit.
4. Use a Phillips No. 2 screwdriver to loosen the four (4) front panel captive
fasteners.
5. To pull out the 4 kW dual AC–DC power supply, use the power connector insert-
ejector bracket as a handle and slide the power supply forward until the handle
on the top of the power supply is exposed.
6. Use one hand to hold the power supply by the handle as you pull it the rest of the
way out of the power module.
7. Place the power supply on a flat, sturdy, ESD-protected surface.
3.2.2.4 Installing a 4 kW Dual AC–DC Power Supply
Caution – The power supply unit weighs 43.0 lb (19.5 kg). Use proper heavy-lifting
procedures when removing this unit.
1. Insert the 4 kW dual
power module.
2. Slide the power supply smoothly inward to a point where contact is made with
the power module connector.
3. Secure the power supply with the four (4) front panel captive fasteners.
Note – Failure of the active LED to transition from on to off within 60 seconds after
insertion indicates a power-status control fault.
4. Verify the LED status per
5. Connect the AC power cords into their appropriate AC connectors on the front
panel of the power supply.
See
FIGURE 3-5
The strain relief for the AC0 power cable housing is positioned downward when
I
connected.
The strain relief for the AC1 power cable housings is positioned upward when
I
connected.
3-12 Sun Fire E25K/E20K Systems Service Manual • April 2004
power supply into its appropriate location in the
AC–DC
.
TABLE 3-2
to determine the proper part number and orientation for connection.