| 13 Pull the right-hand side (Models 010 and 020) or lower end (Models 500 and 600) ofthe backplane assembly toward you, then pull the backplane assembly out throughthe front of the 7133.14 Replace parts in the reverse order.| Notes:| a. When you install the backplane assembly, do not tighten the four captive screws| in the bracket assembly and the four captive screws in the backplane assembly| until after you have reinstalled the power cards and signal or bypass cards. The| cards can be plugged in more easily if the backplane assembly is free to move| slightly.| b. When you reinstall the external SSA cables, ensure that you use the special| screwdriver (SSA tool, part 32H7059) to tighten the SSA connector screws.Chapter 3. Removal and Replacement Procedures 3-51

IBM 7133 Series Service Manual