Sun Microsystems 5500, Reference Manual

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Appendix E Non-Chassis Field Replaceable Units (FRUs) E-21
4. Remove all the boards and power supplies.
See Chapters 3-6 for information on removing the boards and Chapter 7 “Power
Supplies,” for information on removing power supplies.
5. Remove the SCSI adapter assembly, the key switch adapter assembly, and the 200/
240V fan tray assembly.
See Section E.2.6 “SCSI Tape Adapter PCS Assembly,” Section E.2.7 “Key Switch
Adapter Assembly, and Section E.2.8 “Fan Tray Assembly, 200/240V” for
information on removing these assemblies.
6. Disconnect any remaining cables from the Enterprise system main cabinet.
7. Remove the two screws on each side of the system cabinet that attach the top rails
to the system cabinet.
8. Loosen the four screws on each side of the system cabinet that attach the top rails
to the main chassis.
9. Remove the top rails and set them aside.
Guide the four screws through the key slots in each top rail.
10. Remove the four screws on each side of the system cabinet that attach the bottom
rails to the main chassis.
Caution –
Use care when removing the Enterprise system chassis. It weighs
approximately 100 pounds.
11. Carefully slide the Enterprise system chassis out toward the front and place it
front side down onto a surface.
12. Remove the screws around the center of the main chassis.
■
For the Enterprise 6500 system, there are a total of 32 screws, 8 per side.
■
For the Enterprise 5500 system, there are a total of 26 screws.
13. Lift and remove the rear chassis and set it aside.
14. Remove the screws that hold the centerplane to the front chassis.
■
For the Enterprise 6500 system, there are a total of 27 screws, 20 screws around
the side and 7 in the interior section.
■
For the Enterprise 5500 system, there are a total of 20 screws.
Note –
Remember the proper orientation of the centerplane when removing it from
the front chassis.
15. Lift the centerplane out and set it aside.