Set Bottom PU Book Service Position
WARNING: If the PU Book does not click or stop when reaching the next service lock, DO NOT CONTINUE PULLING THE BOOK OUT OF THE CEC CAGE. Try pushing the Book back in and repeat the previous step to see if it clicks and locks. If the PU Book is not locking as you pull it out, call your next level of support.
Push up on the blue PU Book Locking Tab (A) initially as you begin to SLOWLY pull the PU Book out until it stops.
When you have completed these steps, click Next to continue.