Sun Microsystems Sun Fire E25K Service Manual page 53

5. Remove the air plenum cover and its air-inlet EMI honeycomb panel and air filter.
Place on a flat sturdy surface.
Caution – The seven (7) power cables and the two (2) control cables MUST BE
REMOVED from the system chassis on both the front and rear sides of the system
prior to removing the power module.
6. With a flat-blade screwdriver (if needed), loosen the jackscrews on the seven (7)
8W8 Combo-D 8-pin DC power connectors (on the left side) and the two (2) DB-25
control connectors (on the right side).
7. Disconnect the cables from the mounting bulkhead of the system chassis.
8. Remove the four (4) M4x10 panhead screws attaching the power module front
flanges to the system chassis, as shown in
Caution – The power module weighs 48 lb (21.82 kg). Although the unit can be
lifted by one person, it is suggested that two people, one on each side, maneuver the
power module into position. Use proper heavy-lifting procedures when removing
this unit.
9. With one person on each side of the power module, grasp the front (at the power
supply opening) and the bottom and slide the power module outward from the
cabinet.
10. Place the power module on a flat sturdy surface.
11. From the top rear of the power module, loosen the seven (7) 8W8 Combo-D 8-pin
DC power connectors (on the left side) and the two (2) DB-25 control connectors
(on the right side).
12. Disconnect the cables, and set aside.
.
FIGURE 3-2
Chapter 3 System Power 3-5