Sun Microsystems Sun Fire E25K Service Manual page 134

2. Locate the two (2) 0.5 in. hex socket-fixed torque drivers provided in the torque
tool holder brackets on the inside of the front right-side door and torque the
carrier plate captive ejector screws until the driver clicks or slips (equal to 18.0 in.-
lbs or 2.2 Nm). Ensure the two torque drivers are returned to the torque tool
holder brackets after use.
3. Firmly press the carrier plate inward at the center edge with evenly distributed
pressure until the captive ejection screws seat against the card cage and the top
and bottom alignment tabs on the carrier plate are inserted into the top and
bottom alignment slots on the chassis. If you feel resistance, check for proper
alignment of the tabs and the slots (
Caution – DO NOT use the torque drivers to secure the carrier plate until the hand
insertion process has been completed.
4. Secure the captive ejector screws simultaneously into the threaded inserts of the
top and bottom of the card cage by hand until the back of the captive ejector
screws meet the top and bottom face plate of the carrier plate.
5. Firmly press inward at the center edge of the carrier plate to manually seat the
carrier plate again.
6. Manually secure the captive ejector screws simultaneously until the back of the
screws meet the face plate.
7. Repeat this process several times until the carrier plate is fully seated and the top
and bottom carrier plate ejector bracket alignment tabs (not visible from the front)
are evenly set.
8. Use two (2) 0.5 in. hex socket-fixed torque drivers to secure the carrier plate
captive ejector screws. Simultaneously secure the top and bottom captive ejector
screws until the connector is fully seated and the ejector brackets are flush with
the card cage.
The Sun Fire E25K/E20K systems hold various carrier plate types. The System
Control carrier plate is part number 540-3993. The system board carrier plates are
different depending upon their location within the system, part number 541-0119,
541-0120, and 541-0121. Review the location placement in
13, and 14, there is also a carrier plate with an air dam, part number 540-5736.
10-4 Sun Fire E25K/E20K Systems Service Manual • April 2004
).
FIGURE 10-1
FIGURE 10-1
. For slots 4, 5,