NEC MH4500 - Manual (Page 83)

Upgrading Your System 4-13
Removing a Processor Cartridge
Use the following procedure to remove a processor cartridge.
1. Power off the system and remove the access cover as previously described.
2. Remove the foam cover from the electronics bay.
3. With your right thumb on the retention module bracket (A on the following
figure), wrap your right index finger around tab (B).
A
B
C
A. Retention module bracket
B. Bracket tab
C. Latch
Opening the Latch
4. Use your right index finger to slightly pull the tab outward and to the left. A
latch (C) releases when the tab is pulled, making it unnecessary to pull the
entire bracket.
5. With the latch (C) released, rotate the bracket 90º to the left until
perpendicular to the front of the retention module.
6. Grasp the bracket and move (not rotate) it to the right to disengage the
bracket hinge, then remove the bracket from the cartridge.