HP 650 Installation Manual page 89

7. Push the flash card further into the housing as far as it will go; its
lockshaft will move to the left. When properly seated, the end of the
flash card will be flush with the end of its lockshaft.
8. Reinstall the routing engine using steps 8–11 and 14 of the procedure
described under "Replacing the Routing Engine or an Interface Card
(System Offline)" (pages 3-29 through 3-30).
Troubleshooting
Replacing a Module
3-33