Apple PowerBook Duo Dock (including Duo Dock Plus) - Manual (Page 44)

18 Push the subassembly toward the back of the dock to close the gap (the reverse of
step 6).
19 Tighten the screws you loosened in step 5.
The screws are spring-loaded. You’ll need to exert strong downward pressure
while you turn them clockwise.
20 Reconnect the power supply cable you disconnected in step 4.
Gap
38 Chapter 3